TRANSMISSION FORECAST STATEMENT 2010-2016 - Eirgrid

TRANSMISSIONFORECAST STATEMENT2010-2016

FOREWORDEirGrid is pleased to present this Transmission Forecast Statement,which has been prepared in accordance with the provisions ofSection 38 of the Electricity Regulation Act, 1999. It supersedesTransmission Forecast Statement 2010-2016 Version 1.0, publishedin December 2009.In Transmission Forecast Statement 2010-2016 Version 2.0 we present informationthat should help customers who are considering connection of a generator or a newlarge load to the grid. We quantify the extent of opportunities available for demandconnections at a range of locations throughout the grid, present the opportunities forgenerator connections identified through the Gate 3 process and discuss thegeneration opportunities arising from EirGrid’s grid development strategy, GRID25.Those who are considering connecting to the grid are advised to contact EirGrid forfurther information.We include a comprehensive review of existing and planned transmission networkdata, demand data and generation data, as well as a short circuit analysis based onthe most recent data projections. We provide an updated set of network data, mapsand diagrams which provide details of the transmission network and how it isproposed to be developed over the 2010-2016 period.Finally, it is our aim that the information contained in this document is informative,pertinent and accessible. We welcome and value your feedback on the presentation,style and content of this Transmission Forecast Statement at all times.Dermot ByrneChief Executive, EirGrid

table ofcontents

TRANSMISSION FORECAST STATEMENT 2010-2016CONTENTSPAGEFOREWORDSUMMARY1 INTRODUCTION 1-11.1 Outline of the Transmission Forecast Statement 1-11.2 Treatment Of The Single Electricity Market 1-21.3 Treatment Of Interconnection 1-21.4 Data Management 1-31.5 Publication 1-32 THE ELECTRICITY TRANSMISSION NETWORK 2-12.1 Overview of the Electricity Transmission Network 2-12.2 Existing Connections with Northern Ireland 2-22.3 Plans For Transmission System Development 2-32.4 Connection of New Generation Stations 2-72.5 Connection of New Interface Stations 2-92.6 Detailed Network Information 2-103 DEMAND 3-13.1 Forecasts of Transmission Peaks 3-13.2 Comparison with Previous Demand Forecast 3-23.3 Forecast Demand at Transmission Interface Stations 3-23.4 Demand Profiles 3-34 GENERATION 4-14.1 Existing and Planned Grid-Connected Generation 4-14.2 Planned Retirement/Divestiture Of Generation Plant 4-24.3 Embedded Generation 4-34.4 Wind Generation 4-35 TRANSMISSION SYSTEM PERFORMANCE 5-15.1 Forecast Power Flows 5-15.2 Compliance with Planning Standards 5-15.3 Short Circuit Currents 5-3

TRANSMISSION FORECAST STATEMENT 2010-20166 OVERVIEW OF TRANSMISSION SYSTEM CAPABILITY 6-1ANALYSES6.1 Transfer Capability Analyses For New Demand 6-16.2 Factors Impacting On Results 6-37 NETWORK CAPABILITY FOR NEW GENERATION 7-17.1 GRID25 7-17.2 Gate 3 and Post Gate 3 Generation Applicants 7-17.3 Generation Connection Opportunities Created by GRID25 7-27.4 Impact of Gate 3 and Post Gate 3 on Capability for New Generation 7-28 NETWORK CAPABILITY FOR NEW DEMAND 8-18.1 Incremental Transfer Capability Results For New Demand 8-18.2 Opportunities For New Demand 8-38.3 Impact Of Changes Since The Data Freeze 8-48.4 How To Use The Information For Demand 8-4

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDICESA MAPS AND SCHEMATIC DIAGRAMS A-1A.1 Network Maps A-1A.2 Short Bus Codes A-4A.3 Schematic Network Diagrams A-6B NETWORK CHARACTERISTICS B-1B.1 Characteristics Of The Existing Network B-3B.2 Changes In Network Characteristics B-14C DEMAND FORECASTS AT INDIVIDUAL TRANSMISSION C-1INTERFACE STATIONSD GENERATION CAPACITY AND DISPATCH DETAILS D-1D.1 Generation Connected To The Transmission System D-1D.2 Wind Generation Connected To The Distribution System D-6D.3 Generation Dispatch Details D-10E SHORT CIRCUIT CURRENTS E-1E.1 Background E-1E.2 Analysis E-2E.3 Results E-3F ADDITIONAL INFORMATION ON OPPORTUNITIES F-1G STUDY METHODS G-1G.1 Incremental Transfer Capability Studies For Demand G-1H ABBREVIATIONS AND GLOSSARY H-1H.1 Abbreviations H-1H.2 Glossary H-3I REFERENCES I-1J POWER FLOW DIAGRAMS J-1J.1 Guide To The Power Flow Diagrams J-1K SIZE A3 GEOGRAPHICAL MAPS K-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-15 Changes in Circuit Characteristics Expected in 2013 B-20Table B-16 Changes in Circuit Characteristics Expected Beyond 2013 B-22Table B-17 Characteristics of Grid Transformers Expected in 2009 B-23Table B-18 Characteristics of Grid Transformers Expected in 2010 B-23Table B-19 Characteristics of Grid Transformers Expected in 2011 B-24Table B-20 Characteristics of Grid Transformers Expected in 2012 B-24Table B-21 Characteristics of Grid Transformers Expected in 2013 B-24Table B-22 Characteristics of Grid Transformers Expected Beyond 2013 B-25Table B-23 Characteristics of Reactive Compensation Expected in 2010 B-25Table B-24 Characteristics of Reactive Compensation Expected in 2016 B-25Table C-1 Demand Forecasts at Time of Winter Peak C-1Table C-2 Demand Forecasts at Time of Summer Peak C-4Table C-3 Demand Forecasts at Time of Summer Valley C-7Table D-1 Maximum Export Capacities of Existing and Committed Transmission-Connected Generation D-2Table D-2 Maximum Continuous Rating of Existing and Committed Transmission-Connected Generation D-4Table D-3 Existing and Committed Distribution-Connected Wind Farm Capacity D-6Table D-4 Dispatch Profiles - Short Circuit and Demand Opportunity Analyses D-11Table E-1 Short Circuit Current Levels - Standard Equipment Rating E-2Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 E-3Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 E-10Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 E-17

Summary

TRANSMISSION FORECAST STATEMENT 2010-2016The Commission for Energy Regulation (CER) has approved this format in accordance withthe requirements of the Electricity Regulation Act 1999.The National GridThe national grid plays a vital role in the supply of electricity. In simple terms, it transportspower from generators to demand centres using a system comprising 400 kV, 220 kV and110 kV networks. The 400 kV and 220 kV networks form the backbone of the grid. They havehigher power carrying capacity and lower losses than the 110 kV network. The 400 kV linescross the country providing a high capacity path for power flows between north and southDublin, Galway and the Moneypoint generation station in Co. Clare. The 220 kV networkcomprises a number of single circuit loops around the country. The 110 kV network is themost extensive part of the grid, reaching into every county in the Republic of Ireland.The grid is planned and developed to ensure it meets projected transmission needs whilemaintaining its performance within defined reliability standards. The analysis of currentperformance indicates that the network is within standards in most areas at this time. Tocontinue to meet standards, in the context of forecast demand and new generationconnections, there is a requirement for ongoing development to reinforce the grid. Thetransmission development projects, selected and planned by the TSO as at the time of theTFS 2010-2016 data freeze date (July 2009), are listed in Section B.2 of Appendix B and areincluded in the short circuit and ITC analyses carried out for TFS 2010-2016 Ver 2.0.Projects selected and planned since July 2009 are listed in Section 1.4.Single Electricity MarketIn November 2007, a Single Electricity Market (SEM) was established on the island ofIreland. The all-island wholesale electricity market allows both Northern Ireland and theRepublic of Ireland to benefit from increased competition, reduced energy costs andimproved reliability of supply.The national grid is electrically connected to the transmission system of Northern Irelandby means of one 275 kV double circuit connection at Louth and two 110 kV connections atLetterkenny in Co. Donegal and Corraclassy in Co. Cavan. EirGrid and Northern IrelandElectricity (NIE) are planning a new 400 kV cross-border circuit, which is due to be installedby 2012. Together with other reinforcements, the new circuit will facilitate a greater degreeof flexibility in the new market. In the context of the SEM, all cross-border circuits areessentially internal circuits in the new market.InterconnectionIn July 2006, Minister Noel Dempsey TD, then Minister for Communications, Marine andNatural Resources, requested that the Commission for Energy Regulation (CER) arrange acompetition to secure the construction of a 500 MW East-West interconnector betweenIreland and Great Britain. The CER was also requested to instruct the TSO to carry out theS-2

TRANSMISSION FORECAST STATEMENT 2010-2016technical work of selection of a sub-sea route and other sites for the construction of theinterconnector and necessary grid reinforcement works.As recommended by the TSO, the CER has since approved the choice of Woodland as theconnection point on the Irish system for the interconnector. Deeside in North Wales hasbeen selected as the connection point on the British system. The interconnector is expectedto be in place by 2012.Demand ForecastsThe projections of demand for electricity are largely based on forecasts of economic growthproduced by the Economic and Social Research Institute (ESRI). The projections arecompatible with provisional demand figures intended for inclusion in the GenerationAdequacy Report 2010-2016.The grid must be capable of transporting power flows for varying levels of demand.However, the flow at peak demand is frequently, although not exclusively, the mostonerous. The projections of demand flows at peak are discussed in Chapter 3. Table S-1shows the forecasts of peak transmission demand for the years 2010 to 2016. These areequivalent to projections of peak exported generation requirements. Appendix C presentsforecasts of demand at each station connected to the grid. Forecasts of transmission flowsat peak take account of non-wind embedded generation. Because of its size and variability,transmission and distribution-connected wind generation is modelled explicitly in theanalyses carried out for this TFS.In overall terms, the TSO expects that the peak demand will increase by approximately 2.0%each year over the period of the TFS, which is 0.9% lower than that expected inTransmission Forecast Statement 2008-2014. As such, the peak projections to 2016 arelower than for the same years in Transmission Forecast Statement 2008-2014.Table S-1 Forecast of Peak Transmission DemandYearPeak Demand (MW)2010 4,6362011 4,7252012 4,8482013 4,9412014 5,0372015 5,1342016 5,233S-3

TRANSMISSION FORECAST STATEMENT 2010-2016The results of the analysis point to opportunities at the majority of the stations tested.Figure S-1 shows the opportunities for new demand in 2013 and 2016. The diagrams showthat there will be significant demand opportunities in most parts of the country in bothyears. The TSO is currently considering plans for network developments that will improveopportunities for increased demand in Dublin and the south-east.2013 2016

TRANSMISSION FORECAST STATEMENT 2010-2016for transmission. Connection of new generation and large point demands can result in astep change in grid requirements and in its ability to operate within standards. Inparticular, large generator connections can give rise to the need for large transmissionreinforcement projects that may take a long time to complete. Developers wishing toconnect should consult the TSO early in their development process to explore optionsrelating to their proposal thus enabling timely decision making.Those who are considering connecting generation or demand to the national grid shouldcontact the TSO at info@eirgrid.com for further information.Members of the Transmission Forecast Statement Team. From Left to Right: Tom Gallery,Lisa McMullan and Simon Grimes.S-7

01 introduction1.1 Outline of the Transmission Forecast Statement1.2 Treatment of the Single Electricity Market1.3 Treatment of Interconnection1.4 Data Management1.5 Publication

TRANSMISSION FORECAST STATEMENT 2010-20161 INTRODUCTIONThe national grid is a high voltage system of networks which transports power fromgenerators to demand centres. The flow of power is determined by the levels of demand atall parts of the system and by the size and location of generation supplying that demand.Interconnection with other systems can be a source of generation or a demand for power.Transmission Forecast Statement 2010-2016 Ver 2.0, prepared in accordance with Section38 of the Electricity Regulation Act, 1999, presents factual information on, and currentTransmission System Operator (TSO) projections for, the grid, electricity demand,generation, and interconnection with other electricity systems. The appendices providecustomers with detailed information to carry out their own power flow analysis, if desired.The TSO published its Generation Adequacy Report 2010-2016 (GAR) in November 2009. Thatdocument deals with the requirement for additional generation capacity to meet forecastdemand over the seven-year period to 2016. In so far as possible the GAR complements thedemand information presented in Transmission Forecast Statement 2010-2016.The TSO published its Transmission Development Plan 2008-2012 in July 2009. The planprovides details of the network developments expected to be progressed in the 2008-2012period, which are accounted for in this TFS.1.1 OUTLINE OF THE TRANSMISSION FORECAST STATEMENTChapter 2 describes the existing transmission network, including connections with NorthernIreland, and provides a brief outline of the TSO’s network development plans. Detaileddescriptions of these plans are presented in Transmission Development Plan 2008-2012,which was published in July 2009. These documents present a snapshot of the developmentplans at a point in time. However, the planning and development process is dynamic andmay be refined in light of more up-to-date information. As such, network development plansshould be confirmed with the TSO before any business decisions are taken based on thecontent of this document. Maps, schematic diagrams and network details are included inAppendix A and Appendix B. Geographical maps of the transmission system are provided inA3 format in Appendix I.Chapter 3 describes the demand forecasts and Chapter 4 describes the generationprojections. Details of the demand forecasts and generation assumptions are in Appendix Cand Appendix D respectively.The assumptions presented in Chapters 2 to 4 form the basis of the short circuit currentspresented in Chapter 5 and the analysis of transfer capabilities described and reported inChapters 6 to 8. Appendix E presents forecast short circuit currents at all grid stations.1-1

TRANSMISSION FORECAST STATEMENT 2010-2016Chapters 7 and 8 contain information on the opportunities for generator and demandconnections.Diagrams are presented in Appendix J which show typical power flows on all grid circuits fora number of different conditions.1.2 TREATMENT OF THE SINGLE ELECTRICITY MARKETIn November 2007, a Single Electricity Market (SEM) was established on the island ofIreland. The all-island wholesale electricity market allows both Northern Ireland and theRepublic of Ireland to benefit from increased competition, reduced energy costs andimproved reliability of supply.The national grid is electrically connected to the transmission system of Northern Irelandby means of one 275 kV double circuit connection at Louth and two 110 kV connections atLetterkenny in Co. Donegal and Corraclassy in Co. Cavan. The TSO and Northern IrelandElectricity (NIE) are planning a new 400 kV cross-border circuit, which is due to be installedby 2012. Together with other reinforcements, the new circuit will facilitate a greater degreeof flexibility in the new market. In the context of the SEM, all cross-border circuits willessentially become internal circuits in the new market.In order to reflect the way in which the transmission systems of the Republic of Ireland andNorthern Ireland operate, the network was assessed with generation dispatched on an allislandbasis in network models. As such, flows of power across cross-border circuits werepermitted in the short circuit and power flow analyses carried out for TFS 2010-2016. It isimportant to note however that only the performance and capability of the transmissionsystem of the Republic of Ireland is considered. The performance and capability of thetransmission system of Northern Ireland is addressed in SONI’s Transmission System SevenYear Statement.1.3 TREATMENT OF INTERCONNECTIONIn July 2006, Minister Noel Dempsey TD, then Minister for Communications, Marine andNatural Resources, requested that the Commission for Energy Regulation (CER) arrange acompetition to secure the construction of a 500 MW East-West interconnector betweenIreland and Great Britain. The CER was also requested to instruct the TSO to carry out thetechnical work of selection of a sub-sea route and other sites for the construction of theinterconnector and necessary grid reinforcement works.As recommended by the TSO, the CER has since approved the choice of Woodland as theconnection point on the Irish system for the interconnector. Deeside in North Wales hasbeen selected as the connection point on the British system. The interconnector is expectedto be in place by 2012.1-2

TRANSMISSION FORECAST STATEMENT 2010-20161.4 DATA MANAGEMENTSystem development is continuously evolving. In order to carry out analyses and to updatethe network models and appendices for the TFS 2010-2016 Ver 2.0, the TSO froze all datarelating to demand, generation and the grid at the beginning of July 2009.Since the data freeze date, a number of changes in projections have emerged. Thesechanges have been documented and discussed in Chapter 2. The more significant changesin projections are as follows:Connection agreements for 324 MW of Transmission connected generation:−−−−Cuilleen 98.4 MW OCGT plant at Athlone, Co. Westmeath;Suir 98 MW OCGT plant at Cahir, Co. Tipperary;Caulstown 58 MW OCGT Peaking Plant at Caulstown, Co. Louth;70 MW pumped storage plant at Knocknagreenan, Co. Cork.The following grid developments have been initiated as projects:−−−−−−−−Uprating of the Cahir-Doon 110kV line;Uprating of the Great Island-Waterford No.1 110kV line;Uprating of the Limerick-Monateen 110kV line;Uprating of the Cathaleen’s Fall-Coraclassy 110kV line;Uprating of the Carrigadrohid-Kilbarry 110kV line;Uprating of the Coolroe-Inniscarra 110kV line;Construction of a new 110 kV station at Oranmore, Co. Galway which will beconnected into the existing Cashla-Galway No. 3 110 kV circuit;Uprating of the Cashla-Ennis 110kV line.1.5 PUBLICATIONThis TFS is available in pdf format on the EirGrid website (www.eirgrid.com). For a hardcopyversion, please send a request to info@eirgrid.com. Network data is also available onthe website in electronic format.1-3

02 the electricitytransmissionnetwork2.1 Overview of the Electricity Transmission Network2.2 Existing Connections with Northern Ireland2.3 Plans for Transmission System Development2.4 Connection of New Generation Stations2.5 Connection of New Interface Stations2.6 Detailed Network Information

TRANSMISSION FORECAST STATEMENT 2010-20162 THE ELECTRICITY TRANSMISSION NETWORK2.1 OVERVIEW OF THE ELECTRICITY TRANSMISSION NETWORKThe national grid plays a vital role in the supply of electricity, providing the means totransport power from the generators to the demand centres using a system comprising400 kV, 220 kV and 110 kV networks. The national grid is electrically connected to thetransmission system of Northern Ireland by means of one 275 kV double circuit connectionat Louth and two 110 kV connections at Letterkenny in Co. Donegal and Corraclassy in Co.Cavan.The 400 kV and 220 kV networks form the backbone of the grid. They have higher capacityand lower losses than the 110 kV network. The 400 kV network provides a high capacity linkbetween Moneypoint generation station and Galway on the west coast and Dublin on theeast. The 220 kV network comprises a number of single circuit loops around the country.Typically large generation stations (greater than 100 MW) are connected to the 220 kV or400 kV networks.The 110 kV 1 lines, which constituted the entire transmission system prior to the 1960s,provide parallel paths to the 220 kV system. It is the most extensive element of the grid,reaching into every county in the Republic of Ireland.The transmission system generally comprises overhead lines, except in limitedcircumstances, such as in the city centres of Dublin and Cork, where underground cablesare used. Table 2-1 presents the total lengths of overhead lines 2 and cables at the differentvoltage levels. Revision of individual line lengths are subject to confirmation followingcompletion of network development projects.Table 2-1 Total Length of Existing Grid Circuits as at July 01 st 2009Voltage Level Total Line Lengths (km) Total Cable Lengths (km)400 kV 439 0275 kV 42 0220 kV 1,725 104110 kV 3,905 531 A number of radial 110 kV lines around the country and the 110 kV lines and cables within DublinCity are currently operated by the Distribution System Operator (DSO). The DSO licence is held byESB Networks. Details of the distribution network in Dublin are not included in this TransmissionForecast Statement.2Some lines may contain short sections of cable.2-1

TRANSMISSION FORECAST STATEMENT 2010-2016Transformers are required to link the different voltage networks, providing paths for powerto flow from the higher to the lower voltage networks. The total transformer capacitybetween the different voltage levels is presented in Table 2-2.Table 2-2 Total Grid Transformer MVA Capacity as at July 01 st 2009 3Voltage Level Capacity (MVA) Number of transformers400/220 kV 2,550 5275/220 kV 1,200 3220/110 kV 8,989 47Reactive compensation devices are used to improve network voltages in local areas.Existing reactive devices connected to the grid include shunt capacitors, static varcompensators (SVCs) and shunt reactors. Table 2-3 shows the total amounts of each type.Capacitors and SVCs help to support local voltages in areas where low voltages mayotherwise occur. Shunt reactors suppress voltages in areas where they would otherwise betoo high, most likely during periods of low demand.Table 2-3 Total Reactive Compensation as at July 01 st 2009 4Voltage Level Type Capacity (Mvar) Number of devices400 kV Line Shunt Reactor 160 2220 kV Shunt Reactor 100 1110 kV Static Var Compensator 90 2Switched ShuntCapacitor575 262.2 EXISTING CONNECTIONS WITH NORTHERN IRELANDAs illustrated in Figure 2-1, the national grid is connected to Northern Ireland via three275 5 /220 kV transformers in Louth station, one 600 MVA unit and two ganged 6 300 MVAunits, connected to a double circuit 275 kV line running from Louth to Tandragee in Co.Armagh. In addition to the main 275/220 kV double circuit, there are two 110 kVconnections, one between Letterkenny in Co. Donegal and Strabane in Co. Tyrone, and theother between Corraclassy in Co. Cavan and Enniskillen in Co. Fermanagh. The purpose ofthese 110 kV circuits is to provide support to either system for certain conditions or in theevent of an unexpected circuit outage. Phase shifting transformers in Strabane andEnniskillen are used to control the power flow under normal conditions.3Transformer details are provided in Tables B-6, B-7 and B-8 in Appendix B.4Details of existing reactive compensation devices are provided in Table B-10 in Appendix B.5 The transmission system in Northern Ireland is operated at 275 kV and 110 kV.6Plant connected in parallel through common switchgear.2-2

TRANSMISSION FORECAST STATEMENT 2010-20162.3.5 400 kV line to Northern IrelandA new 400 kV line between the national grid and Northern Ireland is currently beingprogressed by the TSO and Northern Ireland Electricity (NIE). The line will connect into anew 400/220 kV station, probably located in Co. Cavan, provisionally referred to as theMid-Cavan station elsewhere in this TFS.In the event of a loss of the existing 275 kV double circuit connecting the national grid toNorthern Ireland, the pre-fault transfers would be directed across the Letterkenny-Strabaneand Corraclassy-Enniskillen 110 kV cross-border circuits. In this instance, to guard againstdamage to these lines, protection equipment will switch out the 110 kV circuits resulting inseparation of the two systems.System separation, depending on the pre-separation flow on the Louth-Tandragee 275 kVdouble circuit, may result in a generation surplus on one system and a deficit on the other.The system with a supply deficit may be required to disconnect demand customers. Thesystem with the supply surplus may have difficulty stabilising the system frequency. Theimpact of potential system separation on each system can result in constraints on theamount of power that can be transferred between the two systems.The new circuit will provide an alternative high capacity path for power flows in the event ofthe loss of the existing circuits. It will therefore overcome the system separation issue andalleviate constraints on power transfers between the two systems. The project is expectedto be completed in 2012.2.3.6 400 kV line from Woodland to Mid-CavanA 400 kV line is planned from the existing Woodland 400 kV station northwards to theplanned Mid-Cavan 400/220 kV station. Together with the planned 400 kV line from Mid-Cavan to Northern Ireland this will further strengthen the link between the two transmissionsystems. It is expected to be completed in the second half of 2012.2.3.7 East-West InterconnectorIn July 2006, the Department of Communications, Marine and Natural Resources requestedthat the Commission for Energy Regulation (CER) arrange a competition to secure theconstruction of a 500 MW East-West interconnector between Ireland and Great Britain. TheCER was also requested to instruct the TSO to carry out the technical work of selection of asub-sea route and other sites for the construction of the interconnector and necessary gridreinforcement works.In July 2007 the CER approved the choice of Woodland as the connection point on the Irishsystem for the interconnector, as recommended by the TSO. Following the signing of a2-5

TRANSMISSION FORECAST STATEMENT 2010-2016connection agreement with National Grid UK in September 2007, Deeside in North Wales hasbeen selected as the connection point on the British system. The interconnector is expectedto be in place by 2012.2.3.8 Finnstown 220 kV DevelopmentFinnstown 220 kV station, in west County Dublin, will be connected into the existingInchicore-Maynooth No. 1 and No. 2 220 kV lines. A number of the existing 110 kV lines inthe area will be connected to the new Finnstown station, ensuring that adequateinfrastructure is in place to meet the increasing electricity demand in the West Dublin areaand reducing the risk of loss of supply at winter peak and during maintenance outages. Thisproject is due for completion in 2013.2.3.9 Balgriffin 220 kV DevelopmentBalgriffin 220 kV station, in north County Dublin, will be connected to the 220 kV networkby an underground cable from Finglas. A number of the existing 110 kV lines in the area willbe connected to the new Balgriffin station, ensuring that adequate infrastructure is in placeto meet the increasing electricity demand in the North East Dublin area and reducing therisk of loss of supply at winter peak and during maintenance outages. This project is duefor completion in 2013.2.3.10 Kilpaddoge 220 kV DevelopmentKilpaddoge 220 kV station, in north Co. Kerry, will be connected into the existingClashavoon-Tarbert and Killonan-Tarbert 220 kV lines. A number of 110 kV lines will beconnected into the new station, making Kilpaddoge a new hub for power flows into thesouth-west. Kilpaddoge 220/110 kV project is needed to accommodate the plannedgeneration in the south-west and the refurbishment of the existing Tarbert 220 kV. Thisproject is due for completion in 2013.2.3.11 Moneypoint-Kilpaddoge 220 kV CircuitA planned new submarine cable across the Shannon estuary from Moneypoint in Co. Clare toKilpaddoge in north Co. Kerry will create a necessary new path for power out of the Dublin-Moneypoint group of generators into the south-west and a path for power out of the southwestto the 400 kV network. It is expected to be completed in 2013.2.3.12 Ballyvouskill 220 kV DevelopmentBallyvouskill 220 kV station will be looped into the existing Clashavoon-Tarbert 220 kVline. The station will be linked to the existing Garrow 110 kV station by two new 110 kV2-6

TRANSMISSION FORECAST STATEMENT 2010-2016overhead lines. Ballyvouskill 220/110 kV project is needed to accommodate the plannedgeneration in the south-west. This project is due for completion in 2014.2.3.13 Knockanure 220 kV DevelopmentKnockanure 220 kV station will be looped into the existing Clashavoon-Tarbert 220 kV line.The station will be looped into the existing Trien-Tarbert 110 kV circuit and the plannedTrien-Athea 110 kV circuit. Knockanure 220/110 kV project is needed to accommodate theplanned generation in the south-west. This project is due for completion in 2014.2.3.14 Kishkeam 220 kV DevelopmentKishkeam 220 kV station will be looped into the existing Clashavoon-Tarbert 220 kV line.The station will be linked to the existing Glenlara 110 kV station by a new 110 kV overheadline. Kishkeam 220/110 kV project is needed to accommodate the planned generation in thesouth-west. This project is due for completion in 2014.2.3.15 400 kV station near PortlaoiseA new 400/110 kV station in the vicinity of Portlaoise, Co. Laois, is planned to providevoltage support in the Kilkenny area and to reinforce the network in the Kildare, Laois andKilkenny areas. The station, provisionally referred to as the Laois station elsewhere in thisTFS, will be connected into the existing Moneypoint-Dunstown 400 kV line and the plannedPortlaoise-Athy 110 kV line 7 . The station will be linked to Kilkenny 110 kV station by a new110 kV overhead line. This project is due for completion in 2014.2.4 CONNECTION OF NEW GENERATION STATIONSSection 4.1 in Chapter 4 describes the future generators that have signed connectionagreements. Table 2-4 shows the connection method for these generators.Table 2-4 Planned Connection Methods of Future GeneratorsGeneratorAghada CCGTAtheaAthea Wind Farm(Extension)Planned Connection MethodConnected to a new Longpoint 220 kV station, itself tail-connected intoAghada 220 kV stationNew Athea 110 kV station tail-connected into Trien 110 kV stationConnected into the planned Athea 110 kV station7 The new Athy 110 kV station is expected to be commissioned by the end of 2010 and it will beconnected into the existing Carlow–Portlaoise 110 kV line.2-7

TRANSMISSION FORECAST STATEMENT 2010-2016Table 2-4 Planned Connection Methods of Future Generators (Continued)GeneratorBallakellyBindoo WindFarm (Extension)BoggeraghBooltiagh WindFarm (Extension)CastledockrillCloghboolaDromadaEdenderryGarvaghGlanlee WindFarm (Extension)KeelderryKnockacummerMoneypoint WindFarmMulreavyNore PowerWhitegatePlanned Connection MethodConnected to a new Ballakelly 220 kV station, itself tail-connected intoLouth 220 kV stationConnected into the existing Ratrussan 110 kV stationNew Boggeragh 110 kV station tail-connected into Clashavoon 220 kVstationConnected into the existing Booltiagh 110 kV stationNew Castledockrill 110 kV station tail-connected into Lodgewood 220 kVstationConnected to a new Knocknagashel 110 kV station; itself tailed intoTrien 110 kV stationNew Dromada 110 kV station tail-connected into Athea 110 kV stationConnected into the existing Cushaling 110 kV stationNew Garvagh 110 kV station tail-connected into Corderry 110 kV stationConnected into the existing Glanlee 110 kV stationNew Keelderry 110 kV station tail-connected into Derrybrien 110 kVstationNew Knockacummer 110 kV station tail-connected into Glenlara 110 kVstationConnected into existing Moneypoint station at 110 kVNew Mulreavy 110 kV station tail-connected into Cathaleen's Fall 110 kVstationConnected to a new Nore 110 kV station, itself tail-connected intoKilkenny 110 kV stationConnected to a new Glanagow 220 kV station, itself tail-connected intoAghada 220 kV stationSince the data freeze at the beginning of July 2009, connection agreements were signed forthree new conventional generation plants, Cuilleen 98.4 MW OCGT plant at Athlone, Co.Westmeath, Suir 98 MW OCGT plant at Cahir, Co. Tipperary and Caulstown 58 MW OCGTPeaking Plant at Caulstown, Co. Louth as well as one 70 MW pumped storage plant atKnocknagreenan, Co. Cork. Table 2-5 shows the planned shallow connection methods forthese plants.2-8

TRANSMISSION FORECAST STATEMENT 2010-2016Table 2-5 Planned Connection Methods of Future Wind Farms Agreed After the Data FreezeWind farmCuilleenSuirCaulstownKnocknagreenanPlanned Connection MethodConnected to a new Cuilleen 110 kV station, itself tail-connected intoAthlone 110 kV stationConnected to a new Suir 110 kV station, itself tail-connected into Cahir110 kV stationConnected to a new Caulstown 110 kV station, itself connected into theexisting Platin-Corduff 110 kV lineConnected to a new Knocknagreenan 110 kV station, itself tailconnectedinto Carrigadrohid 110 kV station2.5 CONNECTION OF NEW INTERFACE STATIONSFor the period covered by this statement, Table 2-6 lists the planned new 110 kV stationsconnecting the distribution system or directly-connected customers to the grid. Thesestations are included in the appropriate network models according to their expectedconnection date. Details of the connections and dates are given in Section B.2 inAppendix B.Table 2-6 Planned 110 kV StationsStation Code Nearest Main Town Countyor Load CentreAdamstown ADM Lucan DublinBallycummin BCM Raheen LimerickBallyragget BGT Ballyragget KilkennyBanoge BOG Gorey WexfordBracklone BRA Portarlington LaoisBunbeg BUN Na Doiri Beaga Dun na nGallCarrowbeg CBG Westport MayoCherrywood CHE Loughlinstown DublinHartnett's Cross HTS Macroom CorkKilmahud KUD Clondalkin DublinNenagh NEN Nenagh TipperaryRalapanne RAL Ralapanne KerrySalthill SAL Salthill GalwayScreeb SCR Camus Iochtar GallimhSingland SNG Garryowen Limerick2-9

TRANSMISSION FORECAST STATEMENT 2010-20162.6 DETAILED NETWORK INFORMATIONFigure A-1 in Appendix A presents a geographical map of the grid at the beginning of July2009. This is also available in A3 format in Appendix I.The electrical characteristics and capacity ratings of the existing network are included inthe following tables in Section B.1 of Appendix B.Tables B-2 to B-5 list the electrical characteristics of the existing overhead lines andunderground cables at the different voltage levels. The ratings are shown in MVA for winterand for summer reference temperature conditions, 5° C and 25° C respectively.Tables B-6 to B-8 list data for each existing transmission transformer. The data includesimpedance values, nameplate ratings and tap ranges. The voltage tapping range for eachtransformer is given as the percentage deviation from the nominal voltage ratio at the twoextreme tap positions.Table B-9 lists details of the phase shifting transformer at Carrickmines 220 kV station.Table B-10 includes the Mvar capacity data for existing reactive compensation devices.Figure A-2 in Appendix A presents a geographical map of the grid as forecast in 2016,including the planned developments. The schematic network diagrams in Appendix A showsnapshots of the existing grid and planned developments at the end of 2009, 2010, 2013and 2016. The diagrams indicate stations, circuits, transformers, generation, reactivedevices and phase shifting transformers.The electrical characteristics and capacity ratings of planned network developments areincluded in the following tables in Section B.2 of Appendix B.Tables B-11 to B-16 contain data for new lines and cables and planned changes to existingline and cable data on an annual basis. These tables include a column to indicate whethereach listed item of plant is being added, amended or deleted. Changes relating to aparticular development project are grouped together and headed by a project descriptionwhich includes the Capital Project (CP) number.Tables B-17 to B-22 list the details of the planned network transformers.Tables B-23 to B-24 include the Mvar capacity data for planned reactive compensationdevices.Electrical characteristics of future transmission plant or changes to the electricalcharacteristics brought about by planned developments are preliminary. Electricalcharacteristics will be reviewed when the plant is commissioned.2-10

03 demand3.1 Forecasts of Transmission Peaks3.2 Comparison with Previous Demand Forecast3.3 Forecast Demand at Transmission Interface Stations3.4 Demand Profiles

TRANSMISSION FORECAST STATEMENT 2010-20163 DEMANDThe flow of power on the grid is determined largely by the generation feeding into it and thedemand that is drawn from it. This chapter deals with forecasts of the total peak demand onthe transmission network, and of demand at individual transmission-connected stations.The Generation Adequacy Report 2010-2016 (GAR), published by the Transmission SystemOperator (TSO) in November 2009, contains forecasts of future energy consumption anddemand for the seven-year period to 2016.3.1 FORECASTS OF TRANSMISSION PEAKSTable 3-1 presents the forecasts of transmission demand for the seven years 2010 to 2016,as they were expected to be published in the GAR. It should be noted that these forecastswere the best available projections during the preparation of this statement. Ultimately,the figures published in the GAR 2010-2016 may differ slightly.While it is difficult to accurately predict a peak demand figure for a particular year, theforecasts in Table 3-1 may be taken as indicative of a general trend in demand growth.Three demand values are presented for each year: the winter peak, the summer peak andthe summer valley.Table 3-1 Transmission Demand Forecast, MWYear Summer Peak Summer Valley Winter Peak2010 3,709 1,669 4,6362011 3,780 1,701 4,7252012 3,878 1,745 4,8482013 3,953 1,779 4,9412014 4,029 1,813 5,0372015 4,107 1,848 5,1342016 4,186 1,884 5,233The winter peak figures represent the expected annual peak demands that are forecast tooccur in the October to February winter period of each year e.g., the 2010 forecast of4,636 MW is the maximum demand projected to occur in winter 2010/11. These peakforecasts take account of the influence of demand-side management (DSM) schemes, suchas the TSO’s winter peak demand reduction scheme (WPDRS). In winter 2008/09, DSMaccounted for approximately 138 MW of a reduction to the peak demand. This amount ofDSM is assumed to continue over the next eight years.The summer peak refers to the average peak value between March and September. This istypically 20% lower than the winter peak. While the overall grid power flow may be lower insummer than in winter, this may not be the case for flows on all circuits. In addition, the3-1

TRANSMISSION FORECAST STATEMENT 2010-2016capacity of overhead lines is lower because of higher ambient temperatures, while networkmaintenance, normally carried out in the March to September period, can weaken thenetwork, further reducing its capability to transport power.The annual minimum is referred to as the summer valley in this TFS. Summer valley casesexamine the impact of less demand and less generation dispatched. This minimumcondition is of particular interest when assessing the capability to connect new generation.With local demand at a minimum, the connecting generator must export more of its poweracross the grid than at peak times. The forecasts of summer valley demands in Table 3-1assume a figure of 36% of the annual maximum demand, which is consistent with historicalsummer valley demand data.3.1.1 Peak Out-turn for Winter 2008/09The peak exported demand in winter 2008/09 was 4,873 MW. This figure is 269 MW lowerthan the transmission peak forecast for winter 2008/09 of 5,142 MW presented inTransmission Forecast Statement 2008-2014. At the time of peak the production from windgeneration was 222 MW. The high peak figure indicates the difficulty in accuratelypredicting the maximum demand in a particular year. Peak demands may be higher or lowerthan forecast depending on factors such as weather conditions and customer behaviour.The TSO will continue to monitor future peaks and adjust its forecasts accordingly.3.2 COMPARISON WITH PREVIOUS DEMAND FORECASTTable 3-2 compares the winter peak transmission demand forecasts in this TFS with thosegiven in Transmission Forecast Statement 2008-2014. The current demand forecasts reflectan average increase in winter peak demand of 2.0% over the period 2010 to 2016. This islower than last year’s forecast average annual increase to 2014. Table 3-2 presents thedifferences between the peaks forecast in the previous TFS and the current forecasts. Thenew peaks forecast are lower than last year’s forecasts as a consequence of the decrease inthe expected rate of demand growth.Table 3-2 Comparison of Peak Demand Forecast with Previous TFS, MW2010 2011 2012 2013 2014 2015 2016TFS 2010-2016 4,636 4,725 4,848 4,941 5,037 5,134 5,233TFS 2008-2014 5,442 5,600 5,762 5,930 6,102 N/A N/ADifference -806 -875 -914 -989 -1,065 N/A N/A3.3 FORECAST DEMAND AT TRANSMISSION INTERFACE STATIONSTransmission interface stations are the points of connection between the transmissionsystem and the distribution system, or directly-connected customers. These are mostly3-2

TRANSMISSION FORECAST STATEMENT 2010-2016110 kV stations. In Dublin city, where the Distribution System Operator (DSO) operates the110 kV network, the interface is usually at 220 kV stations.Appendix C lists the forecast demands at each transmission interface station at time ofwinter peak, summer peak and summer valley for all years from 2010 to 2016. Demandprojections at individual transmission stations are developed from the system demandforecasts on a top-down basis. The forecasting process includes regular monitoring andreview of trends in consumption in all parts of the country. The allocation of the systemdemand forecast to each station is based pro-rata on an up-to-date measurement of actualpeak demand at each station. Account is taken of planned transfers of demand betweenstations as agreed with the DSO. In this way, changes in the geo-diversity of electricityconsumption are captured. This process provides a station demand forecast and byextension a regional demand forecast for the short to medium term.The system-wide demand forecasts, presented in Table 3-1, include transmission losseswhereas the individual station demand forecasts do not. Transmission losses thereforeaccount for the difference between the system-wide demand forecasts and the sum of theforecasts at each interface station in Appendix C.Demand forecasts for the small number of directly-connected customers are the current bestestimates of requirements. In some cases, the estimates may be less than contractedMaximum Import Capacity (MIC) values, but are chosen to give a better projection ofexpected demand on a system-wide basis. However, when analysing the capacity for newdemand in a particular area, the MIC values of local directly-connected customers areassumed to ensure that the contracted MIC is reserved.Although demand-side management schemes are expected to reduce some industries'demands over winter peak hours, their normal demand levels are included in the winterpeak demand forecasts shown in Table C-1 in Appendix C and are used in the power flowdiagrams in Appendix J, as they are more indicative of general power flows.3.4 DEMAND PROFILESElectricity usage follows some generally accepted patterns. For example, annual peakdemand occurs between 17.00 and 19.00 on winter weekday evenings, while minimum usageoccurs during summer weekend night-time hours. Figure 3-1 shows the profile for theweekly peaks across the year for 2008.Figure 3-2 presents four daily demand profiles that indicate how electricity usage variesthroughout the day. The demand profiles are for the day on which the annual peak occurredin 2008 as well as profiles for typical summer and winter weekdays and for the minimumdemand day. The profiles, with demand levels ranging from approximately 1,820 MW to3-3

TRANSMISSION FORECAST STATEMENT 2010-20164,873 MW, indicate that the power system deals with a wide variation in demand throughoutthe year. Even within the day demand variations are substantial.Figure 3-2 illustrates that on the winter peak day the peak demand is almost twice theminimum demand on that day, a variation of over 2,513 MW. A number of points on thisdiagram, the winter peak (WP), typical summer peak (SP) and summer valley (SV) demands,are examined in the analyses undertaken for this TFS.Peak Demand (MW)5000480046004400420040003800360034000 5 10 15 20 25 30 35 40 45 50 55WeekFigure 3-1 Weekly Peak Values for Year 20085500Exported Demand (MW)5000450040003500300025002000WPSP1500SV10000 6 12 18 24HourWinter Peak Typical Winter Typical Summer Summer MinimumFigure 3-2 Daily Demand Profiles for Year 20083-4

04 generation4.1 Existing and Planned Grid-Connected Generation4.2 Planned Retirement/Divestiture of Generation Plant4.3 Embedded Generation4.4 Wind Generation

TRANSMISSION FORECAST STATEMENT 2010-20164 GENERATIONThis chapter gives information about existing generation capacity and projections for theseven years to 2016. All generation capacity and dispatch figures in this TransmissionForecast Statement (TFS) are expressed in exported or net terms i.e., generation unit outputless the unit’s own auxiliary load.On the 01 st of July 2009, when data was frozen in order to permit TFS analyses to be carriedout, some 7,250 MW (net) of generation capacity was installed in the Republic of Ireland. Ofthis 6,454 MW is connected to the national grid and 796 MW is connected directly to thedistribution system. Sections 4.1 to 4.4 detail planned developments with respect togeneration over the period covered by this TFS.4.1 EXISTING AND PLANNED GRID-CONNECTED GENERATIONThe 6,454 MW figure for grid-connected generation capacity includes generators thatconnected to the grid in 2009, namely the Lisheen Wind Farm in Co. Tipperary (55 MW), anincrease in MEC at Coomacheo Wind Farm in Co. Cork (18 MW) and an increase in MEC atCoomagearlahy Wind Farm in Co. Kerry (38.5 MW).A number of generators have applied for connection to the grid. At the time of the datafreeze, 19 contracts had been signed, agreeing to connect a total generation capacity of2,117 MW to the grid. These planned generators are listed in Table 4-1 with their expectedconnection dates as at the time of the data freeze.The following connection agreements signed since the data freeze date; Cuilleen 98.4 MWOCGT plant at Athlone, Co. Westmeath, Suir 98 MW OCGT plant at Cahir, Co. Tipperary,Caulstown 58 MW OCGT Peaking Plant at Caulstown, Co. Louth and Knocknagreenan 70 MWpumped storage plant Co. Cork.Table 4-1 Planned Grid-Connected Generation as at July 01 st 2009Generator Description ExpectedConnectionDateBooltiagh WindFarm (Extension)12 MW wind farm extension in Co. Clare Aug-09Garvagh 58.2 MW wind farm in Co. Leitrim Aug-09Bindoo WindFarm (Extension)22 MW wind farm extension in Co. Cavan Sep-09Boggeragh 57 MW wind farm in Co. Cork Sep-094-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table 4-1 Planned Grid-Connected Generation as at July 01 st 2009 (Continued)Generator Description ExpectedConnectionDateAghada 431 MW CCGT in Co. Cork Nov-09Whitegate 445 MW CCGT in Co. Cork Nov-09Dromada 46 MW wind farm in Co. Limerick Dec-09Edenderry 116 MW Peaking Plant in Co. Offaly Dec-09Knockacummer 87 MW wind farm in Co. Cork Jan-10Mulreavy 82 MW wind farm in Co. Donegal Jan-10Glanlee WindFarm (Extension)6 MW wind farm extension in Co. Cork Mar-10Keelderry 29.8 MW wind farm in Co. Galway May-10Athea 51 MW wind farm in Co. Limerick Jun-10Athea Wind Farm(Extension)22 MW wind farm extension in Co. Limerick Jun-10Castledockrill 41.4 MW wind farm in Co. Wexford Dec-10Nore Power 98 MW OCGT in Co. Kilkenny May-11Ballakelly 445 MW CCGT in Co. Louth Apr-12Cloghboola 46 MW wind farm in Co. Kerry Feb-14MoneypointWind Farm21.9 MW wind farm located at Moneypoint coal-firedpower station in Co. ClareN/A 84.2 PLANNED RETIREMENT/DIVESTITURE OF GENERATION PLANTThe divestiture or closure of generation plant could have a significant impact on the abilityof the grid to comply with standards. Under the Grid Code, a minimum of 24 months noticeis required by the TSO to address the potential implications of any generation closures.It was announced in November 2006 that an agreement had been reached between ESB andthe CER to reduce ESB’s share of the electricity market. Under the terms of the agreementESB must close or divest 1,300 MW of plant by 2010. One of the provisions of the agreementis that ESB must sell peaking capacity plant totalling 208 MW, including sites andinfrastructure, at Rhode and Tawnaghmore.8 There is currently no set date for the connection of Moneypoint wind farm.4-2

TRANSMISSION FORECAST STATEMENT 2010-2016The Aghada peaking unit has subsequently been transferred to Tawnaghmore. Connectionagreements have been signed with the DSO to the effect that two 52 MW peaking units willbecome DSO costumers, connected at Tawnaghmore.In February 2009, ESB Power Generation confirmed that it intends to close Poolbeg Units 1,2 and 3 and the steam turbine at Marina by early 2010. The larger gas turbine at Marina willremain operational.In July 2008, it was announced that the Spanish power company, Endesa, have agreed topurchase Great Island and Tarbert generation stations as well as Rhode and Tawnaghmorepeaking plants from ESB. The exact details of the future operation of these plants have yetto be finalised by Endesa.4.3 EMBEDDED GENERATIONOn the 01 st of July 2009, there was approximately 796 MW of embedded generation planti.e., plant connected to the distribution system or to the system of a directly-connecteddemand customer. This figure comprises combined heat and power (CHP) schemes, smallindustrial thermal units and renewable generation from wind, small hydro, land-fill gas(LFG) and biomass sources. Table 4-2 lists the existing embedded generation capacity totalsby generation type. Table D-3 in Appendix D provides details of the existing embedded windfarms and their capacities.Table 4-2 Existing Embedded Generation as at July 01 st 2009, MWNet Capacity(MW)Wind Small Biomass/ CHP Industrial Peaking TOTALHydro LFG512 22 33 116 9 104 796Embedded generators reduce the demand supplied through the transmission interfacestations. Forecasts of demand at the relevant transmission interface stations, presented inTable 3-1 of Chapter 3, take account of the contribution of the existing non-wind embeddedgenerators 9 . The Generation Adequacy Report 2009-2015 (GAR) forecasts the total CHP andnon-wind renewable capacity to grow by about 5 MW per year.4.4 WIND GENERATIONOver the past fifteen years wind power generation in the Republic of Ireland has increasedfrom 6 MW (one wind farm) to 1,095 MW (79 wind farms) at the beginning of July 2009.9 Because of the variability of wind, a fixed contribution from embedded wind farms is not taken intoaccount in the calculation of the peak transmission flow forecasts. Rather a number of windscenarios are considered in the TFS analyses.4-3

TRANSMISSION FORECAST STATEMENT 2010-2016Figure 4-1 shows existing and planned transmission-connected, distribution-connected andthe total connected wind power capacity at year end from 1992 to 2014. The graphillustrates the increase in wind power in recent years.300025002000MW1500100050001992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014YearTransmission Distribution TotalFigure 4-1 Growth in Wind Capacity, 1992 to 2014As at the 01 st of July 2009, 91 wind farms totalling 1,418 MW have signed connection offersand are committed to connecting to the transmission or distribution networks over the nextfew years. Table 4-3 shows the total amount of existing and committed wind generationcapacity expected to be connected at the end of each year from the existing situation at theend of 2010 to 2016. The individual wind farm details are included in Appendix D.Table 4-3 Existing and Committed Wind Capacity Totals, MWConnection 2009 2010 2011 2012 2013 2014 2015 2016Transmission 792 1,030 1,030 1,030 1,112 1,158 1,158 1,158Distribution 753 973 1,067 1,092 1,092 1,288 1,288 1,355Total 1,545 2,003 2,096 2,121 2,203 2,446 2,446 2,513At the time of the data freeze, a total of 558 applications for wind farm connectionstotalling 14,100 MW had been received by the TSO and DSO.A total of 1,316 MW of wind generation has been processed under the CER’s Gate 2 directionon wind farm connections. The connection studies were carried out with Gate 2 wind farmsgrouped geographically, as set out in the CER direction. Figure 4-2 and Table 4-4 illustratehow Gate 2 wind generation is distributed across the country. At the time of the datafreeze, 1,235 MW of the Gate 2 renewable generation connection offers have been accepted.4-4

TRANSMISSION FORECAST STATEMENT 2010-2016Table 4-4 Gate 2 Wind Generation Area Totals“Gate 2” AreaTotal Generation (MW)A (North West) 201B (Mid North West) 104C (Midlands) 13D (Mid West) 66E (South West) 592F (South West) 44G (North East) 14H1 (Midlands-South West) 162H2 (South East) 118I (South) 2ABCGDEH1H2FIFigure 4-2 Gate 2 Wind Generation AreasAt the time of the data freeze, a total of 10,179 MW of generator connection applications arebeing assessed as per the Commission for Energy Regulation’s Gate 3 direction on thegroup processing scheme for generators. It is currently expected that approximately4,000 MW of wind generation and approximately 2,000 MW of conventional generation willreceive connection offers as part of this process. Figure 4-3 and Table 4-5 illustrate howGate 3 generation is distributed across the country.4-5

05 TRANSMISSIONSYSTEMPERFORMANCE5.1 Forecast Power Flows5.2 Compliance with Planning Standards5.3 Short Circuit Currents

TRANSMISSION FORECAST STATEMENT 2010-20165 TRANSMISSION SYSTEM PERFORMANCEThis chapter describes the future performance of the transmission network in terms offorecast power flows, compliance with planning standards, and short circuit levels.The analysis of the short circuit currents is updated in this TFS and includes any changes tothe existing and planned transmission network data and the existing and projected demandand generation data since the July 2009 data freeze.5.1 FORECAST POWER FLOWSThe power flow at any given time depends on demand levels and the output from eachgenerator. There are many possible combinations of generator outputs (i.e., dispatches)that can meet the system demand requirements at any given time and many possibledemand scenarios. Planned additions of generation, as detailed in Tables D-2 and D-3 inAppendix D, create a greater level of generation dispatch variability with which the gridmust cope.In examining network performance and grid capability for new generation and demand, arange of generation dispatches is considered. As stated in Section 1.2 in Chapter 1,dispatches were prepared on an all-island basis, with power flows across the existing275 kV and planned 400 kV cross-border circuits permitted. Dispatches considered for 2013and 2016 included imports and exports of power across the planned East-Westinterconnector between Ireland and Great Britain.5.2 COMPLIANCE WITH PLANNING STANDARDSFigure 5-1 and Figure 5-2 indicate the areas of the network likely to be outside thermal, i.e.circuit loading, and voltage standards in 2010, 2013 and 2016 based on the assumptions ontransmission reinforcements, demand and generation outlined in this statement. Theseareas are highlighted by orange shading on the maps.The figures illustrate how the network performs against planning standards. It should benoted however that some incidents, such as a fault on a transformer or underground cable,may take a long time to repair and could temporarily change the performance outlook. Alengthy outage of a transformer or cable could weaken the network which could impact onsystem flexibility and on generation constraints.5-1

TRANSMISSION FORECAST STATEMENT 2010-20162010Figure 5-1 Network Performance in 2010The 2010 snapshot shown in Figure 5-1 indicates that a number of areas are outsidestandards pending completion of ongoing projects. Figure 5-2 shows that networkperformance is expected to improve in 2013 when these reinforcements are completed, inparticular following completion of the planned 220 kV Moneypoint-Kilpaddoge circuit. Theanalysis for 2016 shows a growing number of areas outside standards, illustrating the everchangingdemands on the grid and the need for continuous development. The TransmissionSystem Operator (TSO) has plans in place to address many of these problems and is activelyconsidering options for addressing other future network problems. It should be noted whenassessing the 2016 performance, that approximately 50% of Gate 3 wind generation wasassumed to be connected by then.Areas of the network not shaded in the diagrams are expected to be within standards basedon current assumptions. However, the circa 6,000 MW of generation currently expected toreceive offers in Gate 3 may significantly impact on network performance, potentiallyputting some of these areas outside standards. Similarly, other developments such as theconnection of a new large generator or demand may put areas of the network outsidestandards. In such cases, further investment will be required to restore the network tostandards.5-2

TRANSMISSION FORECAST STATEMENT 2010-20162013 2016Figure 5-2 Network Performance in 2013 and 20165.3 SHORT CIRCUIT CURRENTSAll network equipment must be capable of carrying the currents that may occur in the eventof a short circuit fault. In particular, circuit breakers must be capable of opening to isolatea fault, thereby minimising risk to personnel, preventing damage to transmissionequipment, and maintaining system stability, security and quality of supply.The transmission system is designed and operated to maintain short circuit levels belowthe standard equipment ratings listed at each voltage level in Table 5-1. In planning thesystem a 10% margin is applied, so that 220 kV short circuit currents, for example, will bekept below 36 kA.It should be noted that Grid Code Version 3.1 (released in May 2008) contains amodification which stipulates that fault levels at designated stations may be allowed toincrease to 31.5 kA. If necessary, the equipment at these stations is to be modified orreplaced in order to comply with this new rating. The stations currently designated foroperation of the 110 kV equipment up to 31.5 kA, as proposed by the TSO, are; Barnahely,College Park, Corduff, Finglas, Kilbarry, Knockraha, Louth, Marina, Raffeen and Trabeg. TheTSO will annually publish an updated list of designated stations.5-3

TRANSMISSION FORECAST STATEMENT 2010-2016Local short circuit current is a factor to be considered in the connection of new generationor demand. The Grid Code requires that users connecting to the transmission system designtheir plant and apparatus to withstand the short circuit currents set out in Table 5-1.Changes in the network or the addition of generation can bring about an increase in theshort circuit currents at a station nearby. Where the forecast currents would exceed therating of a circuit breaker or other equipment, it would be essential to replace theequipment with higher rated plant or take other measures to reduce the short circuitcurrents.Table 5-1 Standard Equipment Rating and Maximum Design Short Circuit CurrentsVoltage LevelStandard Equipment Short Circuit Rating400 kV 50 kA220 kV 40 kA110 kV In Dublin 26 kAOutside DublinDesignated sites25 kA31.5 kAShort circuit currents were calculated for all grid buses in accordance with internationalstandards. The analysis was carried out for single-phase and three-phase faults for winterpeak and summer valley, for the years 2010, 2013 and 2016. A description of the calculationmethod and the results are given in Appendix E as well as an explanation of the terms used.Analysis was carried out for the winter peak as the results should indicate the maximumshort circuit currents on the system. Conversely, analysis of the summer valley was carriedout as the results should indicate the minimum short circuit currents.The generation dispatches for the winter peak and summer valley studies are presented inTable D-4 in Appendix D. For the calculations of short circuit currents at winter peaks, allother generators are modelled as dispatched at zero MW. This measure ensures a highinfeed to faults from all local generator sources in the studies ensuring that the mostcritical potential scenario is considered for the calculation of short circuit currents at eachbus. For the calculations of short circuit currents at summer valleys, generators that werenot dispatched were not synchronised to the system.The results in Appendix E include RMS break currents, peak make currents and X/R ratios.In summary, the RMS break is an indication of the short circuit currents that a circuitbreaker may have to interrupt i.e., open. The peak make fault current is the maximumcurrent that a circuit breaker may have to make i.e., close onto, at the instant of the fault.The X/R ratio is dependent on the proximity of the station to generation. A very high X/Rratio, as for Dublin stations, arises from the fact that the station is heavily interconnected5-4

TRANSMISSION FORECAST STATEMENT 2010-2016to the surrounding network and is close to concentrations of generation. This leads to highshort circuit currents, particularly peak make currents.The studies assume that the network is in the normal intact condition (as indicated in thepower flow diagrams) and that all circuits connected to a bus contribute to the fault. Theseresults correspond to total busbar short circuit current. The short circuit current that couldflow through each individual circuit breaker may be less than the total busbar short circuitcurrent. Figure 5-3 presents the short circuit current results for the winter peak 2013 caseas a percentage of standard equipment rating. Two percentage ranges are represented bydifferent colours as indicated. The orange dots represent stations where short circuitcurrents may exceed 80% of the standard ratings and the purple dots between 50 and 80%.The results indicate that in most of the country short circuit currents are relatively low,whereas short circuit currents at a number of stations in Dublin and Cork are above 80% ofthe standard ratings because of the high concentration of existing and planned generationin those areas. Short circuit currents are also high at Louth, where the main interconnectorto Northern Ireland is connected, and at Tarbert, where a new submarine cable connectingthe Tarbert area to Moneypoint generation station is expected to be completed in 2013. TheTSO will continue to monitor short circuit currents at these stations to ensure that theyremain within safety standards.> 80% of the standard ratings50 – 80% of the standard ratingsFigure 5-3 Grid Busbar Short Circuit Currents for Winter Peak 20135-5

06 OVERVIEW OFTRANSMISSIONSYSTEM CAPABILITYANALYSES6.1 Transfer Capability Analyses for New Demand6.2 Factors Impacting on Results

TRANSMISSION FORECAST STATEMENT 2010-20166 OVERVIEW OF TRANSMISSION SYSTEM CAPABILITY ANALYSESThis chapter describes the analyses carried out to determine the capability of the grid toaccommodate additional demand at various parts of the network. The results of theseanalyses, together with information in other chapters, provide the basis for the statementsof opportunity in Chapter 8.The analyses were carried out for three specific years:• 2010: This is the first year of the seven-year period of the Transmission ForecastStatement (TFS). The information provided for 2010 gives developers a useful indicationas to the opportunities that exist in the short-term.• 2013: This is the mid-year of the seven-year period. Because of typical lead-times forconstruction of demand plant, this year represents the more realistic beginning of theperiod of interest for developers at a pre-feasibility stage wishing to connect to thetransmission system.• 2016: This covers the final year of the TFS, which extends to winter 2016/17.Studies were carried out for the summer and following winter of each year usinginformation describing the existing and planned transmission system as known at thebeginning of July 2009. The base case generation dispatch scenarios used for the studiesare presented in Table D-4 in Appendix D.The locations analysed for new demand have been carefully reviewed based on feedbackfrom industry sources. The chosen stations have been tailored to match more closely theneeds of customers.It should be noted that the results of these studies are dependent on the assumptions madeabout generation and demand, and on the completion dates of network developmentprojects as described in previous chapters. Factors that may influence the results arediscussed in Section 6.2.6.1 TRANSFER CAPABILITY ANALYSES FOR NEW DEMANDThe grid is planned to meet forecast demands at all stations in the country. The demandforecast for each 110 kV station is a proportion of the overall system demand forecast basedon historical demand distributions. Future demand customers that have signed connectionagreements are also included in station demand forecasts.While additional demands above the forecast levels are not explicitly catered for in networkplans, there may be capacity for such additional demand inherent in the network at certainlocations. New demands can generally locate in an area that has excess generation capacity6-1

TRANSMISSION FORECAST STATEMENT 2010-2016as this will reduce power flows out of the area. Alternatively, the addition of transmissioninfrastructure generally provides a step increase in network capacity which may permitdemands higher than forecast levels, as illustrated in Figure 6-1. The blue line representsthe required capacity at a particular point in the network. The red line represents theinstalled network capacity. Changes in installed capacity generally come in discrete steps,thus providing spare capacity for a period of time.InstalledCapacityMWRequiredCapacitySpareCapacityYearsFigure 6-1 Illustration of Typical Step Change in Network CapacityFigure 6-2 illustrates the demand profile for a representative station. The blue linerepresents the demand forecast at the station. The green bars represent a new stepincrease in demand. The analysis carried out for this TFS examines the grid’s capability toaccept such increased demand above forecast levels at selected 110 kV stations. Theselected 110 kV stations, which feed principal towns and demand centres distributedthroughout the country, are shown in Figure 8-1 in Chapter 8. The results of this analysisare useful in identifying opportunities for the connection of new or increased demand of asize typical of industrial development in the Republic of Ireland.6-2

TRANSMISSION FORECAST STATEMENT 2010-2016504540MW3530252007 2008 2009 2010 2011 2012 2013Figure 6-2 Demand Profile at Typical StationThe method of analysis is detailed in Appendix G. In summary, when demand in an areaincreases, it must be supplied by an increased output from generation units. An incrementalpower transfer is created. The method for this study, therefore, involves modellingincremental power transfers between centres of existing generation and potential demandareas. The transfer limit is reached when the first circuit overload or voltage problemoccurs following a circuit or generator outage. Outages during the maintenance of keycircuits were considered in these studies. Dynamic stability problems were not assessed. Itshould be noted that only problems that are significantly exacerbated by the transfer arerelevant to the analysis.In assessing opportunities for new demands, the TFS considers the capability of thetransmission grid only. The capability of the distribution system is not addressed. Theimplications for generation adequacy of demand growth above the median forecast levelsare dealt with separately in the TSO’s Generation Adequacy Report 2010-2016.6.2 FACTORS IMPACTING ON RESULTSThe results of the analyses described in this chapter, and in the appendices, are based on aset of assumptions about future demand growth, generation connections and transmissiondevelopments. The key forecast factors on which the results depend are dynamic and,therefore, the reality that emerges will not exactly match the forecasts. Consequently, theresults, while reasonably indicative, should not be interpreted as definitive projections.The factors likely to have an impact on the outcomes include:6-3

TRANSMISSION FORECAST STATEMENT 2010-2016• the signing of a connection agreement by a new generator - the Gate 3 process is likelyto result in connection offers being issued for 6,000 MW of conventional and windgeneration;• delays in connection of committed new generation;• closure/divestiture of existing generation stations;• changes in the economy which give rise to consequential changes in the overall demandfor electricity;• changes in demand in a particular region or area, arising from new industrydevelopments or closures;• delays in the provision of network reinforcements;• selection and construction of new reinforcement developments which may significantlyincrease network capacity.6-4

07 NETWORKCAPABILITY FORNEW GENERATION7.1 Grid 257.2 Gate 3 and post gate 3 generation applications7.3 Generation connection opportunities created by grid 257.4 Impact of gate 3 and post gate 3 on capability for new generation

TRANSMISSION FORECAST STATEMENT 2010-20167 NETWORK CAPABILITY FOR NEW GENERATIONThis chapter provides indicative information on the opportunities for generator connectionsbased on EirGrid’s grid development strategy, GRID25, and the Gate 3 group processingscheme for generators.7.1 GRID25Over the next 15 to 20 years, major changes will take place in Ireland’s electricity needs, inits sources of fuel and in its fleet of power stations. Change will increasingly be driven byissues of energy security, competitiveness, climate change and by the need to move awayfrom imported fuels.The National Electricity Grid is a vital channel for supplying reliably, sustainable andrenewable energy and for open competition within the sector. A strong transmission gridwill bring the energy supplies which will enable Ireland to prosper economically and toprovide good quality of life to its people.Reinforcing and upgrading the transmission system is required in order to maintain a stronggrid. The capacity of the bulk transmission system, comprising circuits at 220 kV or higher,has remained largely unchanged in the last 20 years, a period that has seen a growth of150% in the electricity demand. EirGrid calculates that to facilitate the necessary increasein renewable generation and to adequately meet the demands of the electricity customer,the capacity of the bulk transmission system will need to be doubled by 2025.The strategy for the long term development of Ireland’s Electricity Grid for a sustainableand competitive future is set out in GRID25. GRID25 will provide transmission capacity forincreased electricity demand, new conventional generators and large amounts of renewablegeneration.Further details on GRID25 are available on the EirGrid website (www.eirgrid.com).7.2 GATE 3 AND POST GATE 3 GENERATION APPLICANTSThe TSO and DSO have received a considerable number of new applications for connectionof generation to the system. It is currently expected that circa 4,000 MW of wind generationand approximately 2,000 MW of conventional generation will receive connection offers inGate 3. Figure 4-3 and Table 4-5 illustrate how Gate 3 generation is distributed across thecountry. Post Gate 3 there are currently a further 290 applications for renewable (mainlywind farms) connections totalling circa 8,600 MW.7-1

TRANSMISSION FORECAST STATEMENT 2010-20167.3 GENERATION CONNECTION OPPORTUNITIES CREATED BY GRID25On January 29 th 2010 EirGrid published the Gate 3 Firm Access Quantities, in accordancewith the Gate 3 group processing scheme. The publication details the potential levels offirm network access available in the electricity grid for each Gate 3 project for each year upto 2023, taking account of the proposed developments outlined in Grid25.For the purposes of this Transmission Forecast Statement, Table 7-1 compiles the Gate 3Firm Access Quantities to illustrate the level of capacity available on the electricity grid toaccommodate additional generation, for three stages of the seven year period covered bythe TFS – 2010, 2013 and 2016. Table 7-1 illustrates that by 2016 the developmentsassociated with Grid25 create firm capacity on the grid to accommodate more than2,000 MW of Gate 3 generation.Table 7-1 is based directly on the Gate 3 Firm Access Quantities and the associatedassumptions. Details on the Gate 3 Firm Access Quantities are available on the EirGridwebsite (www.eirgrid.com).Table 7-1 Capability for New Generation for each region, MWRegion 2010 2013 2016East 427 745 1,047North-east 33 80 202North-west 0 123 159South-east 52 100 188South-west 0 0 227West 0 92 306Total 512 1139 21297.4 IMPACT OF GATE 3 AND POST GATE 3 ON CAPABILITY FOR NEW GENERATIONThe transmission system upgrades and reinforcements associated with GRID25 willinherently create significant capacity on the grid to accommodate new generation. If newgenerators sign agreements for connection in an area that has received increased gridcapacity as a result of Grid25 system reinforcements, they will use up some or perhaps allof the available capacity in that area.The quantities provided in Table 7-1 are based on analysis carried out on the applications inGate 3. It is reasonable to assume that additional capacity, over and above that indicated inTable 7-1, will be available on various parts of the grid to accommodate some post Gate 3generation. However, given the scale of generator applications it is unlikely, even with thesignificant network expansion associated with GRID25, that there will be capacity on thegrid to provide firm access to all post Gate 3 applications before 2025.7-2

TRANSMISSION FORECAST STATEMENT 2010-2016The manner in which post Gate 3 applications will be processed has yet to be decided bythe Commission for Energy Regulation (CER).Up-to-date information on applications, new generation connection agreements and theprocess for obtaining a formal connection offer are available on www.eirgrid.com. Beforemaking any commercial decisions developers should contact EirGrid for discussions on theirproposed developments.This TFS is published solely for the purposes of Section 38 of the 1999 Electricity Act and isnot intended to have any legal effect in relation to the negotiation of contractual terms forconnections to the transmission system.7-3

08 networkCAPABILITY fornew demand8.1 Incremental Transfer Capability Results for New Demand8.2 Opportunities for New Demand8.3 Impact of Changes Since the Data Freeze8.4 How to Use the Information for Demand

TRANSMISSION FORECAST STATEMENT 2010-20168 NETWORK CAPABILITY FOR NEW DEMANDThe national grid is being planned to meet anticipated demand growth at all stations on thegrid. Appendix C provides projections of demand at each station. This chapter presents theresults of analyses of the capability of the grid to accommodate increased demand, aboveprojected demand levels, and discusses the opportunities for increased demand of a sizetypical of industrial development in the Republic of Ireland. Twenty-nine 110 kV stations,which feed principal towns and demand centres throughout the country, were chosen forthis analysis. These are shown in Figure 8-1.Figure 8-1 110 kV Stations Studied for Demand8.1 INCREMENTAL TRANSFER CAPABILITY RESULTS FOR NEW DEMANDThe method of analysis used to determine the capability of the grid to accommodateadditional demand is described in Chapter 6 and in more detail in Appendix G. The resultsof the analyses are presented in Table 8-1. These indicate the amount of additional demand,in excess of projected demand, that could be accommodated at each of the twenty-nine110 kV stations, without the need for additional grid reinforcement. The results are given tothe nearest 10 MW.8-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table 8-1 Capability for Additional Demand at 110 kV Stations, MWRegion Station 2010 2013 2016Drybridge 120 70 60North-eastMullagharlin 50 50 4 0Shankill 20 90 90Carrick-on-Shannon < 10 P1 60 60Castlebar < 10 P1 30 20North-westLetterkenny < 10 P1 20 30Moy < 10 P1 20 20Sligo < 10 P1 90 90Carrickmines < 10 P2 110 100College Park 70 70 70EastMullingar < 10 P1 40 60Newbridge 30 100 80Portlaoise 10 120 70Thornsberry 20 3 0 7 0Athlone < 10 P1 70 60WestCashla < 10 P3 180 120Ennis 7 0 80 14 0Galway < 10 P3 70 60Arklow 10 80 70Carlow 20 3 0 4 0South-eastKilkenny 10 3 0 130Killoteran 70 60 60Wexford 10 4 0 3 0Cahir 20 20 10Cow Cross 20 80 80South-westKilbarry 20 80 50Limerick 50 9 0 130Trabeg 30 100 110Tralee 3 0 9 0 80The superscripts in Table 8-1 provide a cross reference between the low IncrementalTransfer Capabilities (ITCs) and the tables in Appendix F which provide additionalinformation regarding the constraints limiting the ITCs and the likely scale of developmentrequired to increase the ITCs. Reference numbers prefixed with a “P” indicate that theTransmission System Operator (TSO) has initiated specific projects which will overcome theconstraint; a “C” indicates that plans are being progressed to deal with the constraint; an“F” means that further investigation is required before a solution is selected. The numericalsuffixes serve to uniquely identify the constraints for reference purposes.8-2

TRANSMISSION FORECAST STATEMENT 2010-20168.2 OPPORTUNITIES FOR NEW DEMAND“Opportunity” relates to where there is or will be capacity for greater use of the gridwithout the need for further reinforcements. However, if a developer chooses to connect ademand in an area that requires reinforcement, the TSO will progress relevant griddevelopments. Demand developers should consult the TSO early in their developmentprocess to explore options relating to their proposal thus enabling timely decision making.As a general rule, opportunity at a particular station would tend to reduce over the courseof the seven years covered by the Transmission Forecast Statement (TFS) as normal demandgrowth uses up available capacity. However, in many cases demand opportunities improvein later years as a result of planned network or generation developments.In 2010 there will be opportunities for additional large demand at 20 of the 29 110 kVstations examined and in 2016 there will be opportunities at all 29 stations.Opportunities for increased demands are spread around the country. In general, individualdemands up to 10 MW can be connected to most of the other stations on the grid. Anadditional demand of 10 MW or more, over and above forecast demand, represents asignificant increase for most locations. To put this in context, a demand of 10 MWrepresents the consumption of a typical pharmaceutical plant.Figure 8-2 illustrates the opportunities for demand in 2013 and 2016. The graphics showthat there will be significant demand opportunities in most parts of the country throughoutthe seven-year period to 2016.It should be noted that demand opportunity is tested for each station on an individualbasis. As such, the opportunities presented are not cumulative i.e., if new demand connectsin an area that is shown to have opportunity they will use up some or all of the availablecapacity in that area.8-3

TRANSMISSION FORECAST STATEMENT 2010-20162013 2016

TRANSMISSION FORECAST STATEMENT 2010-2016nearest 110 kV station presented in Table 8-1 in this chapter. The potential developershould then check the assumptions in Chapters 2 to 4 on which these results are based,and consider the impact of changes to the network since the analysis was carried out.To illustrate this approach, the following is an example of how a developer planning toconnect a new large demand of 12 MW (about 13 MVA) near Castlebar in 2010 might use theTFS. The maps in Appendix A show that the nearest 110 kV station is Castlebar station.Appendix C shows that the demand at Castlebar will be about 34.4 MW at winter peak2010/11. This is forecast to grow by 2.3 MW between 2010 and 2013 i.e., by less than 1 MWper annum. The proposed 12 MW is far greater than the annual forecast increase. Ittherefore represents a step change in the demand at Castlebar i.e., the type of increasethat is the subject of the transfer capability analysis presented in this chapter.The results for Castlebar in Table 8-1 show that the opportunity for increased demand isless than 10 MW in 2010. The table directs the potential developer to constraint P1 inAppendix F for additional information on the constraint and the plans that the TSO have inplace to address the constraint. Table F-1 in Appendix F shows that potential overloading ofthe Athlone-Shannonbridge 110 kV line is responsible for limiting the opportunity. Theoverload occurs under summer peak trip-maintenance conditions. Capital projects CP261and CP552, which entails construction of a second Athlone-Shannonbridge 110 kV line andan uprate of the existing Athlone-Shannonbridge 110 kV line, have been initiated by the TSOto relieve the constraint. Detailed information on capital projects CP261 and CP552 can befound in Appendix B. Following completion of these projects towards the end of 2012 theopportunity at Castlebar increases to 30 MW in 2013. The opportunity decreases to 20 MWby 2016 as a result of normal demand growth in the area. This indicates that the network islikely to be capable of connecting and supplying the proposed demand once capital projectsCP261 and CP552 have been fully implemented.8-5

APPENDIX AMAPS ANDSCHEMATICSDiagramsA.1 Network MapsA.2 Short Bus CodesA.3 Schematic Network Diagrams

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX A MAPS AND SCHEMATIC DIAGRAMSAppendix A contains geographical maps and schematic diagrams of the grid. Geographicalmaps are presented illustrating the grid as it exists at the beginning July of 2009 and asplanned for 2016. These maps are also included in A3 format in Appendix I for greaterlegibility. The schematic diagrams represent the grid as planned at the end of 2009, 2013and 2016.A.1 NETWORK MAPSThis section includes two network maps:• Figure A-1 is a map of the existing grid as at July 01 st 2009;• Figure A-2 is a map of the existing grid including planned developments as at December31 st 2016.A-1

Figure A - 1SORNEHILLPlanned Transmission System400 kV, 220 kV and 110 kVAs at July 2009KILTOYLETTERKENNYMEENTYCATDRUMKEENTRILLICKTO STRABANE400 kV Lines220 kV Lines110 kV Lines400 kV Cables220 kV Cables110 kV Cables400 kV Stations220 kV Stations110 kV StationsLEGENDTransmission ConnectedGenerationHydro GenerationThermal GenerationPumped Storage GenerationWind GenerationBINBANECATHALEEN'SFALLGOLAGHCLIFFNORTHERNIRELANDSLIGOTO ENNISKILLENLISDRUMTAWNAGHMORECORDERRYTO TANDRAGEEBELLACORICKMOYCUNGHILLSRANANAGHCORRACLASSYGORTAWEE275kVARIGNASHANKILLDUNDALKTONROECARRICK-ON -SHANNONGILRARATRUSSANMEATHHILLLOUTHMULLAGHARLINCASTLEBARFLAGFORDARVADALTONLANESBORORICHMONDNAVANGORMANDRYBRIDGEPLATINKNOCKUMBERMULLINGARBALTRASNAGALWAYCLOONCASHLASOMERSETATHLONESHANNONBRIDGETHORNSBERRYWOODLANDGLASMORECORDUFFKINNEGADHUNTSTOWNFINGLAS NORTH WALLDERRYIRONDUNFIRTHPOOLBEGMAYNOOTHSHELLYBANKSRINAWADEINCHICORE IRISHTOWNBLAKECUSHALINGMONREADCARRICKMINESKILTEELFASSAROESEEDUBLINAREATYNAGHOLDSTREETDALLOWNEWBRIDGEBARODADUNSTOWNPOLLAPHUCADERRYBRIENTURLOUGHHILLAGANNYGALPORTLAOISEATHYSTRATFORDBALLYBEGIKERRINBOOLTIAGHENNISDRUMLINELISHEENCARLOWKELLISSHELTONABBEYARKLOWTULLABRACKARDNACRUSHATHURLESMONEYPOINTTARBERTPROSPECTSEALROCKCASTLEFARMAUGHINISHLIMERICKMUNGRETMONETEENAHANEKILLONANKILKENNYRATHKEALECRANEBALLYWATERTIPPERARYTRIENCLAHANECHARLEVILLECAHIRDOONANNERBALLYDINEWEXFORDTRALEEGREAT ISLANDGLENLARACULLENAGHWATERFORDKILLOTERANBUTLERSTOWNOUGHTRAGHMALLOWKNOCKEARAGHBARRYMOREDUNGARVANGARROWCLONKEENCOOMAGEARLAHYGLANLEECLASHAVOONKNOCKRAHAKILBARRYINNISCARRAMACROOMMARINATRABEGCARRIGADROHIDCOOLROERAFFEENAGHADADUBLIN AREABALLYLICKEYDUNMANWAYBRINNYBANDONSEECORKAREAWOODLANDGLASMORECORK AREAMACETOWNCORDUFFCOLLEGEPARKHUNTSTOWNFINGLASDARDISTOWNKILMORECROMCASTLEGRANGEKNOCKRAHAMIDLETONRYEBROOKPELLETSTOWNCABRAARTANEKILBARRYLIBERTYSTREETCORKCITYTRABEGMARINACASTLEVIEWLOUGHMAHONOLDCOURTMAYNOOTHGRIFFINRATHRINAWADEGRANGECASTLENANGORINCHICORENORTH QUAYSMcDERMOTTWOLFE TONENORTH WALLFRANCIS ST.POOLBEGMISERY HILLSHELLYBANKSIRISHTOWNRINGSENDHAROLDSCROSSMILLTOWNCOW CROSSCITYWESTCOOKSTOWNTANEYBLACKROCKRINGASKIDDYCOBHCORKHARBOURAGHADALONGPOINTCENTRALPARKPOTTERYROADRAFFEENBARNAHELYWHITEGATEKILTEELCARRICKMINES

Figure A - 21SORNEHILLPlanned Transmission System400 kV, 220 kV and 110 kVAs As at December at July 2009 2016BUNBEGKILTOYLETTERKENNYMEENTYCATDRUMKEENTRILLICKTO STRABANE400 kV Lines220 kV Lines110 kV Lines400 kV Cables220 kV Cables110 kV Cables400 kV Stations220 kV Stations110 kV StationsLEGENDTransmission ConnectedGenerationHydro GenerationThermal GenerationPumped Storage GenerationWind GenerationTIEVEBRACKBINBANEMULREAVYCATHALEEN'SFALLGOLAGHCLIFFNORTHERNIRELANDTO TURLEENANSLIGOTO ENNISKILLENLISDRUMTAWNAGHMORECORDERRYTO TANDRAGEEBELLACORICKMOYCUNGHILLSRANANAGHGARVAGHCORRACLASSYGORTAWEE275kVGLENREEARIGNASHANKILLDUNDALKTONROECARRICK-ON -SHANNONGILRARATRUSSANLOUTHBALLAKELLYMEATHHILLMULLAGHARLINCASTLEBARFLAGFORDARVAMID CAVANCARROWBEGDALTONLANESBORORICHMONDNAVANGORMANDRYBRIDGEPLATINKNOCKUMBERSTEVENSTOWNMULLINGARBALTRASNAEASTWEST HVDCINTERCONNECTORSCREEBSALTHILLGALWAYCLOONCASHLASOMERSETATHLONESHANNONBRIDGETHORNSBERRYDERRYIRONKINNEGADCUSHALINGDUNFIRTHBLAKEWOODLANDMAYNOOTHMONREADKILTEELRINAWADECORDUFFHUNTSTOWNFINGLASPOOLBEGINCHICOREFINNSTOWNCARRICKMINESGLASMORENORTH WALLBALGRIFFINSHELLYBANKSIRISHTOWNCHERRYWOODFASSAROESEEDUBLINAREAKEELDERRYTYNAGHOLDSTREETDALLOWBRACKLONENEWBRIDGEBARODADUNSTOWNPOLLAPHUCADERRYBRIENTURLOUGHHILLAGANNYGALPORTLAOISELAOISATHYSTRATFORDBALLYBEGIKERRINBOOLTIAGHENNISDRUMLINENENAGHLISHEENBALLYRAGGETCARLOWKELLISSHELTONABBEYARKLOWTULLABRACKARDNACRUSHASINGLANDLIMERICKPROSPECTMUNGRETMONEYPOINTSEALROCKAHANEMONETEENTARBERTCASTLEFARMAUGHINISHKILLONANRALAPPANE KILPADDOGEBALLYCUMMINRATHKEALECAUTEENTHURLESNOREKILKENNYBANOGECASTLEDOCKRILLLODGEWOODBALLYWATERCRANEKNOCKANURETRIENDROMADAATHEACLAHANEKNOCKNAGASHELTRALEEMUINGNAMINNANEKNOCKACUMMERCORDALGLENLARACHARLEVILLETIPPERARYCAHIRDOONANNERBALLYDINECULLENAGHGREAT ISLANDWATERFORDKILLOTERANBUTLERSTOWNWEXFORDOUGHTRAGHKISHKEAMMALLOWKNOCKEARAGHBARRYMOREDUNGARVANGARROWBALLYVOUSKILLBOGGERAGHCLONKEENCOOMAGEARLAHYGLANLEEBALLYLICKEYHARTNETT’SCROSSCLASHAVOONMACROOMDUNMANWAYKILBARRYINNISCARRACARRIGADROHIDBANDONTRABEGCOOLROEBRINNYKNOCKRAHAMARINARAFFEENAGHADAGLANAGOWSEECORKAREAWOODLANDDUBLIN AREAGLASMORECORK AREAMACETOWNCORDUFFCOLLEGEPARKDARDISTOWNHUNTSTOWNBALGRIFFINCROMCASTLEFINGLASKILMOREGRANGEPOPPINTREEKNOCKRAHAMIDLETONRYEBROOKPELLETSTOWNCABRAARTANEKILBARRYLIBERTYSTREETCORKCITYTRABEGMARINACASTLEVIEWLOUGHMAHONOLDCOURTMAYNOOTHRINAWADEGRIFFINRATHADAMSTOWN FINNSTOWNGRANGECASTLENANGOR KILMAHUDNORTH QUAYSMcDERMOTTWOLFE TONENORTH WALLHEUSTON SQUARE FRANCIS ST. TRINITYPOOLBEGMISERY HILLINCHICORESHELLYBANKSIRISHTOWNRINGSENDHAROLDSCROSSMILLTOWNCOW CROSSCITYWESTCOOKSTOWNTANEYBLACKROCKRINGASKIDDYCOBHCORKHARBOURAGHADALONGPOINTCENTRALPARKPOTTERYROADRAFFEENBARNAHELYGLANAGOWWHITEGATEKILTEELCARRICKMINESCHERRYWOOD

TRANSMISSION FORECAST STATEMENT 2010-2016A.2 SHORT BUS CODESThe following table associates full station names with the two or three letter codes used inthe schematic diagrams in Section A.3, in the tables in Appendices B and C, and the powerflow diagrams in Appendix H. Names and codes for future stations, highlighted in yellow,are tentative and may change. In particular “Mid-Cavan” and “Laois” are holding namesuntil the sites for the stations are confirmed.Stations in Northern Ireland that are directly-connected to stations in the Republic ofIreland are included in this table and marked with a * symbol.Table A-1 Short Bus CodesShortBus CodeFull NameShortBus CodeFull NameShortBus CodeFull NameAA Ardnacrusha BK Bellacorick CHA CharlevilleAD Aghada BLI Ballylickey CHE CherrywoodADM Adamstown BLK Blake CKM CarrickminesAGL Agannygal BOG Banoge CKN ClonkeenAHA Ahane BOL Booltiagh CL CliffANR Anner BRA Bracklone CLA ClashavoonARI Arigna BRI Brinny CLH ClahaneARK Arklow BRY Barnahely CLN CloonARV Arva BUN Bunbeg CLW CarlowATE Athea BUT Butlerstown COL College ParkATH Athlone BVK Ballyvouskill COR CorraclassyATY Athy BWR Ballywater COS Carrick-on-ShannonAUG Aughinish BY Ballakelly COW Cow CrossBAL Baltrasna CAH Cahir CRA CraneBAN Bandon CBG Carrowbeg CRO CoolroeBAR Barrymore CBR Castlebar CSH CashlaBCM Ballycummin CD Carrigadrohid CTN CauteenBDA Baroda CDK Castledockrill CUL CullenaghBDN Ballydine CDL Cordal CUN CunghillBEG Ballybeg CDU Corduff CUS CushalingBGF Balgriffin CDY Corderry CVW CastleviewBGH Boggeragh CF Cathaleen's Fall DAL DallowBGT Ballyragget CFM Castlefarm DDK DundalkBIN Binbane CGL Coomagearlahy DER DerryironA-4

TRANSMISSION FORECAST STATEMENT 2010-2016Table A-1 Short Bus Codes (continued)Short BusCodeFull NameShort BusCodeFull NameShort BusCodeFull NameDFR Dunfirth HN Huntstown LSN LisheenDGN Dungarvan HTS Hartnett's Cross LWD LodgewoodDLT Dalton IA Inniscarra MAC MacroomDMY Dunmanway IKE Ikerrin MAL MallowDOO Doon INC Inchicore MAY MaynoothDRM Drumkeen ISH Irishtown MCE MacetownDRO Dromada KBY Kilbarry MCV Mid-CavanDRU Drumline KCR Knockacummer MEE MeentycatDRY Drybridge KEE Keelderry MID MidletonDSN Dunstown KER Knockearagh MLN MullagharlinDYN Derrybrien KIN Kinnegad MON MonreadEKN* Enniskillen KKM Kishkeam MOY MoyENN Ennis KKY Kilkenny MP MoneypointFAS Fassaroe KLM Kilmore MR MarinaFIN Finglas KLN Killonan MRY MulreavyFLA Flagford KLS Kellis MTH Meath HillFNT Finnstown KNG Knocknagashel MTN MoneteenGAE Glanlee KNR Knockanure MUL MullingarGAL Galway KPG Kilpaddoge MUN MungretGAR Garvagh KRA Knockraha MUI MuingnaminnaneGCA Grange Castle KTL Kilteel NAN NangorGGO Glanagow KTN Killoteran NAV NavanGI Great Island KTY Kiltoy NEN NenaghGIL Gilra KUD Kilmahud NEW NewbridgeGLA Glasmore KUR Knockumber NO NoreGLE Glenlara LA Lanesboro NW North WallGLR Glenree LET Letterkenny OLD OldcourtGOL Golagh LIB Liberty Street OST OldstreetGOR Gorman LIM Limerick OUG OughtraghGRA Grange LIS Lisdrum PA PollaphucaGRI Griffinrath LOU Louth PB PoolbegGRO Garrow LPT Longpoint PLA PlatinGWE Gortawee LSE Laois PLS PortlaoiseA-5

TRANSMISSION FORECAST STATEMENT 2010-2016Table A-1 Short Bus Codes (continued)Short BusCodeFull NameShort BusCodeFull NameShort BusCodeFull NamePRO Prospect SK Sealrock THU ThurlesRAF Raffeen SKL Shankill TIP TipperaryRAL Ralapanne SLI Sligo TIV TievebrackRAT Rathkeale SNG Singland TLK TrillickRIC Richmond SOM Somerset TON TonroeRNW Rinawade SOR Sorne Hill TRI TrienRRU Ratrussan SRA Srananagh TRL TraleeRSY Ringaskiddy STR Stratford TSB ThornsberryRYB Ryebrook SVN Stevenstown TLE* TurleenanSAL Salthill TAN* Tandragee TYN TynaghSBN* Strabane TAW Tawnaghmore WAT WaterfordSCR Screeb TB Tarbert WEX WexfordSH Shannonbridge TBG Trabeg WHI WhitegateSHE Shelton Abbey TBK Tullabrack WMD West MidlandSHL Shellybanks TH Turlough Hill WOO WoodlandA.3 SCHEMATIC NETWORK DIAGRAMSSchematic diagrams are included to assist users in understanding the network and in theidentification of the changes outlined in Appendix B. Lines, cables, transformers, stationbusbars and reactive compensation devices are illustrated in the diagrams. The type ofgeneration (thermal, wind or hydro) at a station is also displayed. Table A-2 indicates thediagram conventions.The schematic diagram for 2009 highlights the developments due to be completed in 2009.The diagram for 2010 displays developments due for completion in 2010. The 2013 diagramhighlights developments expected to be completed between 2010 and the end of 2013 whilethe 2016 diagram highlights developments due to be completed between 2013 and the endof 2016.In all diagrams blue shading represents a new development, pink shading denotes a circuituprating, yellow shading indicates the locations of conventional generators and orangeshading indicates the locations of wind generators.A-6

TRANSMISSION FORECAST STATEMENT 2010-2016Table A-2 Schematic LegendSymbolNetwork Element Represented400 kV circuit275 kV circuit220 kV circuit110 kV circuitBusbarBusbar with thermal generationBusbar with wind generationBusbar with thermal and wind generationBusbar with hydro generationCapacitorStatic var compensator (SVC)ReactorAuto-transformerDouble-wound transformerPhase shifting transformerSplit-busbarNONormally open circuitA-7

TRANSMISSION FORECAST STATEMENT 2010-2016A-8Figure A-3 Schematic Diagram of the Existing and Planned Grid at End of 2009BDNMTHTandragee (NI)Strabane (NI)SKLCLNTBKDRUSOMRICTSBATHLISDDKDRYDGNDOODSNCOWRATKLNAHAMALTBGTHUCAHBARBKLAIAGISHMCECLCFGILBANEnniskillen (NI)DALDMYMLNKURLIMDFRKLSCROARIGALCBRCVWIKEANRPACLWWOOBRYCFMMUNISHFINKLSADRAFOSTCULSTRDLTTIPSLIBEGTONCOLBLIAGLDYNDERRETAWBRIOLDWHICGLSKCDYATYGORCDTYNSRAMONRYBGRIMAYSHLDSNBLKNONANNWSHLIBFLABUTGIGOLLETKTYTLKMEEDRMPBCULCULHNMPGAERRUCUSSORBDAMACADCHALPTGGOGRVSNGNAVCRAWEXBWRADMRSYKRAFASRAFWATKTNARKCKMGLAFINCDUWOOINCTHLOUARVGWECORFLACSHPROKRABINNEWAAKTLBGHGORPLSKLNCSHMAYMTNGCAMULKINRNWAUGCOSKKYCUNMOYPLABALCDUCLHCLATBTRLKERCLATBTRIMIDDROGLECKNMRINCMPBOLCKMARKSHELOUGROKBYOUGENNLSN

TRANSMISSION FORECAST STATEMENT 2010-2016A-9Figure A-4 Schematic Diagram of the Existing and Planned Grid at End of 2010BDNMTHTandragee (NI)Strabane (NI)SKLCLNTBKDRUSOMRICTSBATHLISDDKDRYDGNDOODSNCOWRATKLNAHAMALTBGTHUCAHBARBKLAIAGISHMCECLCFGILBANEnniskillen (NI)DALDMYMLNKURLIMDFRKLSCROARIGALCBRCVWIKEANRPACLWWOOBRYCFMMUNISHFINKLSADRAFOSTCULSTRDLTTIPSLIBEGTONCOLBLIAGLDYNDERRETAWBRIOLDWHICGLSKCDYGORCDTYNNENSRAMONRYBGRIMAYSHLDSNBLKNONANNWHTSSHLIBFLABUTGIGOLLETKTYTLKMEEDRMPBCULCULHNMPGAERRUCUSSORBDAMACADCHALPTGGOGRVSNGKUDNAVCBGCRAWEXBWRBOGCDKADMSVNRSYKRAKEEFASATYRAFWATKTNARKCKMGLAFINCDUWOOINCTHLOUARVGWECORFLACSHPROKRABINNEWAAKTLLDWBGHGORPLSKLNCSHMAYMTNGCAMULKINRNWAUGCOSKKYCUNMOYPLABALCDUATECLHCLATBTRLKERCLATBTRIMIDDROGLECKNMRINCMPBOLCKMARKLOUGROLDWKBYOUGENNLSN

TRANSMISSION FORECAST STATEMENT 2010-2016A-10Figure A-5 Schematic Diagram of the Existing and Planned Grid at End of 2013BDNMTHTandragee (NI)Strabane (NI)SKLCLNTBKDRUSOMRICTSBATHLISDDKDRYDGNDOODSNCOWRATKLNAHAMALTBGTHUCAHBARBKLAIAGISHMCECLCFGILBANEnniskillen (NI)DALDMYMLNKURLIMDFRKLSCROARIGALCBRCVWIKEANRPACLWWOOBRYCFMMUNISHFINKLSADRAFOSTCULSTRDLTTIPSLIBEGTONCOLBLIAGLDYNDERRETAWBRIOLDWHICGLSKCDYGORCDTYNNENSRASRAMONRYBGRIMAYSHLDSNBLKNONANNWHTSSHLIBFLABUTGIGOLLETKTYTLKMEEDRMPBCULCULHNMPGAERRUCUSSORBDAMACADCHALPTGGOGRVSNGKUDNAVCBGBUNSALTurleenan(NI)CTNCRAWEXBWRBOGCDKADMFNTBGFBGFSVNRSYSCRKRAKEEFASTIVMRYATYBCMRAFWATKTNARKCKMGLAFINCDUWOOINCFNTTHLOUARVGWECORFLACSHPROKRABINBRANEWAAKTLLDWBGHGORPLSKLNCSHMAYMTNCHEGCAMCVMCVMULKINRNWAUGCOSNOKKYCUNMOYGLRPLABALCDURALATECLHCLATBTRLKERCLATBKPGTRIMIDDROGLECKNMRINCMPKPGMPBOLCKMARKLOUBYGROLDWKBYOUGENNLSN

TRANSMISSION FORECAST STATEMENT 2010-2016A-11Figure A-6 Schematic Diagram of the Existing and Planned Grid at End of 2016BDNMTHTandragee (NI)Strabane (NI)SKLCLNTBKDRUSOMRICTSBATHLISDDKDRYDGNDOODSNCOWRATKLNAHAMALTBGTHUCAHBARBKLAIAGISHMCECLCFGILBANEnniskillen (NI)DALDMYMLNKURLIMDFRKLSCROARIGALCBRCVWIKEANRPACLWWOOBRYCFMMUNISHFINKLSADRAFOSTCULSTRDLTTIPSLIBEGTONCOLBLIAGLDYNDERRETAWBRIOLDWHICGLSKCDYGORCDTYNNENSRASRAMONRYBGRIMAYSHLDSNBLKNONANNWHTSSHLIBFLABUTGIGOLLETKTYTLKMEEDRMPBCULCULHNMPGAERRUCUSSORBDAMACADCHALPTGGOGRVSNGKUDNAVCBGBUNSALTurleenan(NI)CTNBGTCRAWEXBWRBOGCDKADMFNTBGFBGFSVNRSYSCRLSEKRAKEEFASTIVMRYATYBCMRAFWATKTNARKCKMGLAFINCDUWOOINCFNTTHLOUARVGWECORFLACSHPROKRABINBRANEWAAKTLLDWBGHGORPLSKLNCSHMAYMTNCHEGCAMCVMCVMULKINRNWAUGCOSNOKKYCUNMOYGLRPLABALCDURALATECLHCLATBTRLKERKNRCLATBKNGKNRKPGTRIMIDMUIDROKKMKKMCDLKCRGLEBVKCKNMRLSEINCMPKPGMPBOLCKMARKLOUBYGROBVKLDWKBYOUGENNLSN

APPENDIX BNETWORKCHARACTERISTICSB.1 Characteristics of the Existing NetworkB.2 Changes in Network Characteristics

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX B NETWORK CHARACTERISTICSThis appendix presents details of the physical and electrical characteristics of thetransmission system in tabular form. Data for the existing system is presented first,followed by the data for planned developments.The planned developments include network reinforcement projects that have been selectedby the TSO, and developments necessary to connect new generation and demands to thegrid as at the beginning of July 2009.Readers should refer to Section 1.4 in Chapter 1 of the main text to obtain information onprojects approved since July 2009.The following is a list of tables in Section B.1:Table B-2 Characteristics of Existing 400 kV LinesTable B-3 Characteristics of Existing Cross-Border 275 kV LinesTable B-4 Characteristics of Existing 220 kV Lines and CablesTable B-5 Characteristics of Existing 110 kV Lines and CablesTable B-6 Characteristics of Existing 400/220 kV Grid TransformersTable B-7 Characteristics of Existing 275/220 kV Grid TransformersTable B-8 Characteristics of Existing 220/110 kV Grid TransformersTable B-9 Characteristics of Existing Power Flow ControllerTable B-10 Characteristics of Existing Reactive CompensationThe following is a list of tables in Section B.2:Table B-11 Changes in Circuit Characteristics Expected After July 01 st 2009Table B-12 Changes in Circuit Characteristics Expected in 2010Table B-13 Changes in Circuit Characteristics Expected in 2011Table B-14 Changes in Circuit Characteristics Expected in 2012Table B-15 Changes in Circuit Characteristics Expected in 2013Table B-16 Changes in Circuit Characteristics Expected Beyond 2013Table B-17 Characteristics of Grid Transformers Expected in 2009Table B-18 Characteristics of Grid Transformers Expected in 2010Table B-19 Characteristics of Grid Transformers Expected in 2011B-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-20 Characteristics of Grid Transformers Expected in 2012Table B-21 Characteristics of Grid Transformers Expected in 2013Table B-22 Characteristics of Grid Transformers Expected Beyond 2013Table B-23 Characteristics of Reactive Compensation Expected in 2010Table B-24 Characteristics of Reactive Compensation Expected in 2016Tables B-2 to B-5 and Tables B-11 to B-16 include the ratings for lines and cables in MVA forwinter and summer reference temperature conditions at 1 per unit (p.u.) voltage. The higherambient temperature in summer dictates a reduced thermal rating for overhead lines. Therating is the maximum permissible power that the circuit can transport on a continuousbasis. Reference ambient temperatures are:• winter - 5° C;• summer - 25° C.The electrical characteristics of the transmission network at the three nominal voltagelevels are quoted in per unit to an MVA base of 100, and the applicable reference voltage asreflected in Table B-1.Table B-1 Nominal and Reference Voltage LevelsNominal Voltage LevelReference Voltage400 kV 380 kV220 kV 220 kV110 kV 110 kVIn some cases, other equipment associated with a line or cable, such as currenttransformers, may have lower ratings. However, as these are easier to uprate or change outthan the line or cable, they are not expected to restrict access to the grid.Historically, a small number of 110 kV stations were connected to the grid via a tee i.e., anun-switched connection into an existing line between two other stations. For the purposesof describing the various sections of lines in the following tables, the tee point isidentified by the name of the teed 110 kV station with a suffix “T” added.B-2

TRANSMISSION FORECAST STATEMENT 2010-2016B.1 CHARACTERISTICS OF THE EXISTING NETWORKTable B-2 Characteristics of Existing 400 kV Lines400 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No. (km) R X B Summer WinterDSN MP 1 208.5 0.004 0.047 1.049 1424 1713MP OST 1 105.0 0.002 0.023 0.530 1424 1713OST WOO 1 125.0 0.002 0.028 0.631 1424 1713Table B-3 Characteristics of Existing Cross-Border 275 kV Lines275 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No. (km) R X B Summer WinterLOU TAN 1 50.0 0.002 0.021 0.127 710 881LOU TAN 2 50.0 0.002 0.021 0.127 710 881B-3

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-4 Characteristics of Existing 220 kV Lines and Cables220 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterAD KRA 1 25.6 0.003 0.022 0.034 431 518AD KRA 2 25.6 0.003 0.022 0.034 431 518AD LPT 1 1.0 0.000 0.000 0.027 593 593ARK CKM 1 53.3 0.006 0.046 0.070 431 518ARK GI 1 87.8 0.010 0.076 0.115 431 518CDU FIN 1 3.7 0.001 0.003 0.005 431 518CDU FIN 2 3.7 0.001 0.003 0.005 431 518CDU HN 1 4.5 0.000 0.002 0.123 593 593CDU WOO 1 18.4 0.002 0.016 0.024 431 518CDU WOO 2 17.8 0.002 0.016 0.023 431 518CKM DSN 1 41.6 0.005 0.036 0.054 431 518CKM ISH 1 11.7 0.000 0.005 0.320 593 593CKM PB 1 14.5 0.001 0.005 0.618 267 267CLA KRA 1 45.0 0.005 0.039 0.059 431 518CLA TB 1 97.3 0.011 0.084 0.127 431 518CSH FLA 1 88.1 0.010 0.076 0.115 431 518CSH PRO 1 88.5 0.010 0.077 0.116 431 518CSH TYN 1 33.8 0.004 0.029 0.044 431 518CUL GI 1 23.0 0.003 0.020 0.030 229 438CUL KRA 1 86.0 0.010 0.075 0.113 431 518DSN KLS 1 59.3 0.007 0.051 0.077 431 518DSN MAY 1 36.3 0.004 0.032 0.048 431 518DSN MAY 2 30.6 0.004 0.027 0.040 431 518DSN TH 1 26.6 0.003 0.022 0.144 351 351FIN HN 1 1.4 0.000 0.001 0.038 570 570FIN NW 1 11.9 0.001 0.004 0.680 332 332FIN SHL 1 13.4 0.001 0.005 0.367 572 572FLA LOU 1 110.1 0.013 0.095 0.144 431 518GI KLS 1 69.3 0.008 0.060 0.091 431 518GOR LOU 1 32.4 0.004 0.028 0.042 431 518GOR MAY 1 42.2 0.005 0.037 0.055 431 518INC ISH 1 11 0.000 0.004 0.301 593 593INC MAY 1 19.1 0.002 0.017 0.025 431 518INC MAY 2 19.1 0.002 0.017 0.025 431 518INC PB 1 12.5 0.001 0.004 0.504 267 267INC PB 2 11.3 0.001 0.003 0.722 351 351ISH SHL 1 1.1 0.000 0.001 0.030 548 548KLN KRA 1 82.4 0.013 0.073 0.105 286 370KLN SH 1 89.7 0.014 0.080 0.115 286 370KLN TB 1 70.6 0.008 0.061 0.092 431 518KRA RAF 1 23.4 0.003 0.020 0.031 431 518LOU WOO 1 61.2 0.007 0.053 0.080 431 518MAY SH 1 105.6 0.017 0.094 0.135 286 370MAY TH 1 53.1 0.006 0.044 0.184 351 351MAY WOO 1 22.3 0.003 0.020 0.030 431 518MP PRO 1 12.7 0.001 0.009 0.021 825 992NW PB 1 4.5 0.000 0.001 0.261 332 332B-4

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-4 Characteristics of Existing 220 kV Lines and Cables (continued)220 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterOST TYN 1 14.5 0.002 0.013 0.019 431 518PB PB 1 … 0.000 0.037 … 450 450PB SHL 1 0.12 0.000 0.001 0.012 250 250PRO TB 1 10.3 0.001 0.007 0.173 381 381Table B-5 Characteristics of Existing 110 kV Lines and Cables110 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterAA DRU 1 18.4 0.029 0.067 0.006 107 126AA ENN 1 33.0 0.051 0.117 0.011 107 126AA KLN 1 9.4 0.006 0.031 0.003 187 223AA LIM 1 11.7 0.014 0.038 0.012 107 126AD WHI 1 3.1 0.005 0.011 0.001 107 126AGL DYN 1 8.0 0.013 0.028 0.003 107 126AGL ENN 1 38.2 0.059 0.131 0.012 107 126AGL SH 1 46.2 0.072 0.159 0.015 107 126AHA KLN 1 3.8 0.004 0.012 0.004 115 115ANR DOO 1 2.0 0.003 0.007 0.001 107 126ARI ARI T 1 0.2 0.000 0.001 0.000 107 126ARK BEG 1 21.9 0.010 0.079 0.007 137 164ARK CRA 1 41.8 0.064 0.144 0.013 107 126ARK SHE 1 2.2 0.004 0.008 0.001 34 57ARK SHE 2 2.2 0.004 0.008 0.001 72 103ARV COS 1 41.4 0.064 0.142 0.013 107 126ARV GWE 1 30.6 0.037 0.103 0.010 107 126ARV NAV 1 60.6 0.086 0.207 0.020 107 126ARV SKL 1 18.6 0.029 0.065 0.006 86 111ATH LA 1 35.7 0.054 0.123 0.012 107 126ATH SH 1 21.6 0.022 0.072 0.009 93 131ATY ATY T 1 5.5 0.009 0.019 0.002 107 126ATY T PLS 1 21.1 0.033 0.073 0.007 107 126ATY T CLW 1 19.5 0.030 0.067 0.006 107 126AUG CFM 1 0.7 0.001 0.002 0.001 96 96AUG CFM 2 0.7 0.001 0.002 0.001 96 96AUG MTN 1 27.5 0.017 0.089 0.010 187 223AUG SK 3 1.0 0.001 0.001 0.006 120 120AUG SK 4 1.0 0.001 0.001 0.006 120 120AUG TB 1 34.0 0.021 0.111 0.012 187 223BAL CDU 1 16.8 0.011 0.055 0.006 187 223BAL DRY 1 20.0 0.013 0.065 0.007 187 223BAN BRI 1 2.6 0.004 0.009 0.001 107 126BAN BRI 2 2.5 0.004 0.009 0.001 107 126BAN DMY 1 25.9 0.040 0.089 0.008 107 126BAN RAF 1 26.9 0.041 0.091 0.012 107 126BAR BAR T 1 0.3 0.001 0.001 0.000 107 126BDA MON 1 12.5 0.012 0.036 0.020 120 128B-5

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-5 Characteristics of Existing 110 kV Lines and Cables (continued)110 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterBDA NEW 1 7.9 0.007 0.020 0.019 120 128BDN CUL 1 21.8 0.034 0.075 0.007 107 126BDN DOO 1 11.3 0.018 0.039 0.004 107 126BEG CKM 1 32.3 0.015 0.116 0.010 137 164BIN CF 1 34.3 0.053 0.118 0.011 107 126BK CBR 1 37.4 0.058 0.128 0.013 107 126BK MOY 1 27.2 0.042 0.097 0.009 107 126BLI DMY 1 27.6 0.043 0.094 0.010 107 126BLK BLK T 1 0.5 0.001 0.002 0.000 137 164BOL ENN 1 24.0 0.037 0.083 0.008 107 126BOL TBK T 1 19.6 0.031 0.067 0.006 107 126BRY RAF 1 1.7 0.003 0.006 0.001 72 103BRY RAF 2 1.8 0.002 0.006 0.001 107 126BUT CUL 1 11.6 0.018 0.040 0.004 107 126BUT KTN 1 2.7 0.004 0.009 0.001 107 126BWR CRA 1 21.9 0.011 0.030 0.137 116 116CAH BAR T 1 44.2 0.066 0.152 0.014 107 126CAH DOO 1 16.0 0.025 0.055 0.005 107 126CAH THU 1 39.0 0.041 0.130 0.013 137 164CAH TIP 1 27.0 0.042 0.093 0.009 107 126CBR CLN 1 57.7 0.090 0.198 0.020 107 126CBR DLT 1 27.8 0.043 0.096 0.009 107 126CD KBY 1 33.6 0.052 0.116 0.011 107 126CD MAC 1 1.0 0.002 0.004 0.000 107 126CDU MCE 1 4.1 0.003 0.010 0.016 137 164CDU MUL 1 73.3 0.088 0.237 0.041 107 126CDU PLA 1 37.0 0.023 0.120 0.013 187 223CDU RYB 1 18.5 0.018 0.060 0.023 111 128CDY ARI T 1 17.0 0.0177 0.057 0.006 137 164CDY SRA 1 12.7 0.015 0.043 0.004 107 126CF SRA 1 52.7 0.071 0.179 0.017 107 126CF SRA 2 49.2 0.062 0.166 0.016 107 126CF CL 1 5.5 0.006 0.018 0.002 137 164CF COR 1 61.3 0.064 0.205 0.021 107 126CF DRM 1 51.3 0.077 0.176 0.017 107 126CF GOL T 1 25.5 0.040 0.088 0.008 107 126CGL GAE 1 2.0 0.001 0.003 0.015 140 143CHA GLE 1 30.0 0.047 0.103 0.010 107 126CHA KLN 1 36.9 0.057 0.127 0.012 72 103CHA MAL 1 22.5 0.035 0.077 0.007 72 103CKM FAS 1 7.5 0.011 0.026 0.003 107 126CKM FAS 2 7.5 0.012 0.026 0.002 107 126CKN CGL 1 6.3 0.004 0.021 0.002 187 223CKN KER 1 20.3 0.013 0.066 0.007 187 223CKN GRO 1 15.8 0.008 0.015 0.157 120 120CLA CKN 1 29.8 0.019 0.097 0.011 187 223B-6

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-5 Characteristics of Existing 110 kV Lines and Cables (continued)110 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterCLA MAC 1 5.7 0.004 0.018 0.002 187 223CLH TRI 1 9.0 0.014 0.031 0.003 107 126CLH TRL 1 13.5 0.020 0.045 0.025 107 126CLN LA 1 64.6 0.075 0.221 0.022 107 126CLW KLS 1 5.4 0.008 0.019 0.002 107 126CLW KLS 2 5.3 0.008 0.019 0.002 107 126CLW STR T 1 17.6 0.027 0.061 0.006 107 126COL CDU 1 2.3 0.001 0.004 0.020 140 143COL FIN 1 4.9 0.003 0.013 0.037 120 141COR EKN 1 27.5 0.043 0.095 0.009 107 126COR GWE 1 10.9 0.015 0.037 0.004 107 126COS ARI T 1 20.7 0.022 0.069 0.007 120 128COS FLA 1 3.4 0.005 0.012 0.001 107 126COS FLA 2 3.3 0.005 0.011 0.001 107 126COW OLD 1 2.3 0.004 0.008 0.001 107 126COW OLD 2 2.2 0.003 0.008 0.001 107 126COW RAF 1 6.9 0.010 0.024 0.003 107 126COW WHI 1 17.8 0.027 0.062 0.006 107 126CRA WEX 1 21.3 0.033 0.073 0.007 72 103CRO IA 1 2.7 0.004 0.010 0.001 107 126CRO KBY 1 14.3 0.022 0.049 0.005 107 126CSH CLN 1 22.8 0.036 0.078 0.007 107 126CSH ENN 1 53.6 0.083 0.185 0.017 107 126CSH GAL 1 13.8 0.021 0.047 0.004 107 126CSH GAL 2 11.3 0.018 0.039 0.004 107 126CSH GAL 3 11.3 0.018 0.039 0.004 107 126CSH SOM T 1 44.9 0.070 0.154 0.014 107 126CUL DGN 1 34.3 0.053 0.116 0.016 107 126CUL WAT 1 12.5 0.019 0.043 0.005 107 126CUN MOY 1 40.7 0.063 0.140 0.013 107 126CUN SLI 1 20.0 0.031 0.069 0.006 107 126CUS BLK T 1 27.4 0.029 0.091 0.009 137 164CUS PLS 1 41.8 0.044 0.140 0.014 137 164CVW COW 1 17.2 0.025 0.054 0.018 107 126CVW KRA 1 7.6 0.012 0.026 0.004 107 126DAL DAL T 1 12.2 0.019 0.042 0.004 107 126DDK LOU 2 16.8 0.026 0.058 0.005 107 126DDK MLN 1 7.5 0.012 0.026 0.003 107 126DER KIN 1 15.1 0.012 0.050 0.005 120 128DER MAY 1 43.0 0.027 0.139 0.018 90 95DER TSB 1 19.7 0.031 0.068 0.006 107 126DFR DFR T 1 0.1 0.000 0.000 0.000 107 126DGN KRA 1 53.7 0.084 0.185 0.017 107 126DLT GAL 1 55.1 0.086 0.190 0.018 107 126DMY MAC 1 26.2 0.041 0.091 0.008 107 126DRM LET 1 8.0 0.013 0.028 0.003 107 126DRM MEE 1 5.0 0.008 0.017 0.002 107 126B-7

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-5 Characteristics of Existing 110 kV Lines and Cables (continued)110 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterDRU ENN 1 17.4 0.027 0.060 0.006 107 126DRY GOR 1 19.4 0.029 0.067 0.006 107 126DRY LOU 1 31.9 0.050 0.110 0.010 107 126DRY PLA 1 5.3 0.008 0.018 0.002 107 126FIN GLA 1 14.0 0.022 0.048 0.005 107 126FIN GLA 2 14.2 0.022 0.049 0.005 107 126FIN GRA 1 13.2 0.005 0.012 0.236 119 119FIN KLM 1 9.3 0.005 0.010 0.056 120 131FIN MCE 1 7.6 0.008 0.025 0.007 120 128FLA GIL 1 10.6 0.017 0.037 0.003 107 126FLA LA 1 30.6 0.048 0.105 0.010 107 126FLA SLI 1 50.5 0.079 0.174 0.016 107 126FLA TON 1 32.3 0.050 0.112 0.010 107 126GCA GRI T 1 8.9 0.009 0.029 0.006 111 143GCA INC 1 8.1 0.008 0.025 0.009 111 143GCA INC 2 7.8 0.008 0.023 0.010 111 143GCA NAN 1 1.8 0.001 0.002 0.011 120 120GCA NAN 2 1.7 0.001 0.002 0.011 120 131GI KKY 1 49.2 0.077 0.169 0.016 107 126GI WAT 1 11.7 0.008 0.038 0.004 137 164GI WAT 2 12.9 0.008 0.042 0.005 120 128GI WEX 1 34.5 0.054 0.119 0.011 107 126GOL GOL T 1 3.9 0.006 0.014 0.001 107 126GOR NAV 1 5.3 0.008 0.019 0.002 107 126GOR NAV 2 6.3 0.009 0.022 0.002 107 126GOR PLA 1 19.7 0.030 0.068 0.006 107 126GRA KLM 1 5.9 0.003 0.007 0.036 120 120GRI GRI T 1 1.0 0.002 0.004 0.000 107 126GRI MAY 1 2.2 0.003 0.009 0.001 107 126IA MAC 1 18.1 0.028 0.063 0.006 107 126IKE IKE T 1 0.2 0.000 0.001 0.000 93 131KBY KRA 1 11.9 0.014 0.040 0.004 107 126KBY KRA 2 12.5 0.018 0.043 0.004 107 126KBY MAL 1 29.1 0.045 0.101 0.009 72 103KBY MR 1 4.0 0.004 0.013 0.003 111 128KBY MR 2 4.0 0.004 0.013 0.003 111 128KER OUG T 1 22.6 0.014 0.074 0.008 187 223KIN DFR T 1 29.3 0.021 0.096 0.010 120 164KLN LIM 1 9.0 0.014 0.031 0.003 107 126KLN LIM 2 11.7 0.018 0.040 0.009 86 111KLN TIP 1 41.0 0.064 0.141 0.013 107 126KLS KKY 1 34.3 0.053 0.118 0.011 107 126KRA BAR T 1 19.4 0.020 0.065 0.007 137 164KRA MID 1 10.7 0.017 0.037 0.004 107 126KTL KTL T 1 1.3 0.002 0.005 0.001 107 126KTN WAT 1 3.4 0.005 0.012 0.001 107 126KTY LET 1 4.9 0.006 0.017 0.002 107 126B-8

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-5 Characteristics of Existing 110 kV Lines and Cables (continued)110 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterKUR NAV 1 6.1 0.010 0.021 0.002 107 126LA MUL 1 46.3 0.072 0.160 0.015 107 126LA RIC 1 14.7 0.023 0.050 0.007 107 126LA RIC 2 14.7 0.023 0.051 0.005 107 126LET GOL T 1 38.4 0.058 0.132 0.012 107 126LET SBN 1 24.0 0.037 0.083 0.008 107 126LET TLK 1 34.7 0.054 0.119 0.011 107 126LIB MR 1 2.7 0.001 0.003 0.017 100 100LIB MR 2 2.7 0.002 0.003 0.017 120 120LIM MTN 1 7.5 0.005 0.025 0.003 137 164LIM RAT 1 29.1 0.044 0.101 0.012 107 126LIS LOU 1 40.4 0.063 0.139 0.013 107 126LIS SKL 1 39.3 0.061 0.135 0.013 107 126LOU MLN 1 13.0 0.020 0.045 0.004 107 126LOU MTH 1 15.1 0.024 0.052 0.005 107 126LOU RRU 1 37.5 0.058 0.129 0.012 107 126LSN THU 1 10.4 0.016 0.036 0.003 107 126MAY BLK T 1 30.9 0.032 0.103 0.011 137 164MAY GRI T 1 2.2 0.002 0.007 0.002 111 143MAY KTL T 1 19.5 0.020 0.065 0.007 120 128MAY RNW 1 7.1 0.008 0.024 0.002 107 126MAY RYB 1 8.9 0.009 0.030 0.003 120 128MID WHI 1 20.0 0.030 0.069 0.007 107 126MON KTL T 1 10.1 0.011 0.034 0.004 120 128MOY TAW 1 8.4 0.013 0.029 0.003 107 126MOY TAW 2 8.3 0.013 0.029 0.003 107 126MP TBK T 1 6.6 0.010 0.023 0.002 107 126MR TBG 1 3.3 0.004 0.005 0.044 79 79MR TBG 2 2.9 0.002 0.003 0.028 79 79MTN MUN 1 0.7 0.001 0.003 0.000 107 126MTN MUN 2 0.7 0.001 0.002 0.000 107 126NEW PLS 1 43.0 0.055 0.146 0.014 107 126OUG OUG T 1 11.0 0.017 0.038 0.004 107 126PA STR T 1 22.4 0.035 0.077 0.007 107 126PLS DAL T 1 54.7 0.040 0.179 0.019 72 103RAF RSY 1 2.1 0.003 0.007 0.001 72 103RAF TBG 1 10.6 0.016 0.036 0.005 107 126RAF TBG 2 9.2 0.014 0.032 0.004 107 126RAT TB 1 33.6 0.035 0.112 0.012 137 164RNW DFR T 1 25.9 0.020 0.085 0.009 107 126RRU SKL 1 14.5 0.023 0.050 0.005 107 126SH DAL T 1 12.0 0.019 0.041 0.005 72 103SH IKE T 1 53.7 0.056 0.179 0.018 93 131SH SOM T 1 13.8 0.021 0.047 0.006 107 126SLI SRA 2 12.0 0.019 0.041 0.004 107 126SLI SRA 1 11.1 0.017 0.038 0.004 107 126B-9

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-5 Characteristics of Existing 110 kV Lines and Cables (continued)110 kV Circuits Length Impedance p.u. on 100 MVA Rating (MVA)From To No.(km)R X B Summer WinterSOM SOM T 1 2.0 0.003 0.007 0.001 107 126SOR TLK 1 4.4 0.007 0.015 0.002 107 126STR STR T 1 2.0 0.003 0.007 0.001 107 126TB TRI 1 20.5 0.021 0.069 0.007 120 128TB TRL 1 42.0 0.063 0.147 0.014 107 126TBK TBK T 1 2.9 0.005 0.010 0.001 107 126THU IKE T 1 25.9 0.027 0.087 0.009 93 131TRL OUG T 1 11.3 0.007 0.037 0.004 187 223Table B-6 Characteristics of Existing 400/220 kV Grid TransformersTransformerRating(MVA)Impedance p.u. on 100 MVAVoltage Ratio TappingRangeR X + -Dunstown T4201 500 0.000 0.032 1% 15%Moneypoint T4201 500 0.000 0.033 1% 15%Oldstreet T4202 500 0.000 0.027 10% 7%Woodland T4201 500 0.000 0.032 1% 15%Woodland T4202 550 0.000 0.018 N/ATotal 2,550Table B-7 Characteristics of Existing 275/220 kV Grid TransformersTransformerRating(MVA)Impedance p.u. on 100 MVAVoltage Ratio TappingRangeR X + -Louth AT1 300 0.001 0.030 15% 15%Louth AT2 600 0.001 0.015 15% 15%Louth AT3 300 0.001 0.030 15% 15%Total 1,200B-10

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-8 Characteristics of Existing 220/110 kV Grid TransformersTransformerRating(MVA)Impedance p.u. on 100 MVAVoltage Ratio TappingRangeR X + -Aghada T2102 125 0.001 0.124 10% 18%Arklow T2101 63 0.007 0.180 23% 19%Arklow T2102 125 0.002 0.124 9% 18%Carrickmines T2101 250 0.001 0.065 9% 17%Carrickmines T2102 250 0.001 0.065 9% 17%Cashla T2101 1 250 0.000 0.063 9% 18%Cashla T2102 250 0.000 0.063 9% 18%Cashla T2104 175 0.002 0.133 22% 18%Clashavoon T2101 125 0.001 0.124 9% 17%Corduff T2101 250 0.001 0.064 9% 17%Corduff T2102 250 0.001 0.061 9% 17%Cullenagh T2101 250 0.001 0.064 9% 18%Finglas T2101 250 0.001 0.065 9% 18%Finglas T2102 250 0.001 0.065 9% 18%Finglas T2103 250 0.001 0.064 9% 17%Finglas T2104 250 0.001 0.064 9% 17%Flagford T2101 125 0.003 0.128 9% 18%Flagford T2102 125 0.001 0.133 9% 18%Gorman T2101 250 0.001 0.064 9% 18%Great Island T2101 125 0.003 0.133 9% 18%Great Island T2102 125 0.002 0.124 22% 18%Inchicore T2101 250 0.001 0.056 9% 17%Inchicore T2102 250 0.001 0.056 9% 17%Inchicore T2104 250 0.000 0.060 9% 18%Kellis T2101 125 0.001 0.124 9% 18%Kellis T2102 125 0.001 0.124 9% 18%Killonan T2101 63 0.007 0.245 22% 18%Killonan T2102 63 0.010 0.247 22% 18%Killonan T2104 125 0.001 0.123 9% 18%Knockraha T2101 250 0.001 0.065 9% 17%Knockraha T2102 250 0.001 0.065 9% 17%Louth T2101 125 0.002 0.133 22% 18%Louth T2102 125 0.002 0.132 23% 18%Louth T2103 125 0.002 0.132 22% 18%Louth T2104 250 0.001 0.064 9% 17%Maynooth T2101 125 0.002 0.134 22% 18%Maynooth T2102 11 250 0.001 0.064 9% 17%Maynooth T2103 125 0.002 0.132 22% 18%Maynooth T2104 250 0.001 0.064 9% 17%Poolbeg TF3 250 0.001 0.059 8% 17%Poolbeg TF4 250 0.001 0.061 8% 17%Raffeen T2101 11 250 0.001 0.064 9% 17%Raffeen T2102 250 0.000 0.056 9% 17%1Transformer capacity limited to 238 MVA at 110 kV by the 110 kV switchgear.B-11

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-8 Characteristics of Existing 220/110 kV Grid Transformers (continued)TransformerRating(MVA)Impedance p.u. on 100 MVAVoltage Ratio TappingRangeR X + -Shannonbridge T2101 125 0.006 0.124 9% 18%Shannonbridge T2102 125 0.001 0.124 9% 18%Tarbert T2101 250 2 0.001 0.055 9% 17%Tarbert T2102 250 2 0.001 0.055 9% 17%Total 8,989Table B-9 Characteristics of Existing Power Flow ControllerRating(MVA)Impedance p.u. on100 MVAPhase Angle Range(electrical degrees)StationCircuitR X + -Carrickmines 350 CKM-PB 220 kV 0.000 0.029 15.3 15.3Table B-10 Characteristics of Existing Reactive CompensationMvar CapabilityStation Bus PlantGenerate AbsorbAthlone ATH 110 2 Capacitors (1 Mobile) 60Bandon BAN 110 1 Capacitor 15Cahir CAH 110 4 Capacitors 60Carrickmines CKM 220 1 Shunt Reactor 100Cashla CSH 110 2 Capacitors 80Castlebar CBR 110 1 Capacitor 30Castlebar CBR 110 1 Static Var Compensator 60 10Cathaleen's Fall CF 110 1 Capacitor 15Dalton DLT 110 1 Capacitor 15Doon DOO 110 1 Capacitor 15Dunmanway DMY 110 1 Capacitor 15Dunstown 3 DSN 400 1 Shunt Reactor 80Gortawee GWE 110 1 Capacitor 15Letterkenny LET 110 1 Capacitor 15Letterkenny LET 110 1 Static Var Compensator 30Moy MOY 110 2 Capacitors 30Navan NAV 110 1 Capacitor (1 Mobile) 30Raffeen RAF 110 1 Capacitor 60Sligo SLI 110 1 Capacitor 15Thurles THU 110 1 Capacitor 15Tralee TRL 110 1 Capacitor 30Trien TRI 110 1 Capacitor 302Transformer limited to 238 MVA at 110 kV by the 110 kV switchgear.3This shunt reactor is on the Moneypoint-Dunstown 400 kV line, at the Dunstown end.B-12

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-10 Characteristics of Existing Reactive Compensation (continued)Station Bus PlantMvar CapabilityGenerateWexford WEX 110 2 Capacitors 30Woodland 4 WOO 400 1 Shunt Reactor 80Total 665 270Absorb4This shunt reactor is on the Oldstreet-Woodland 400 kV line at the Woodland end.B-13

TRANSMISSION FORECAST STATEMENT 2010-2016B.2 CHANGES IN NETWORK CHARACTERISTICSFuture developments on the network are listed in this section according to the year in whichthey are expected to be completed. The network changes related to each development projectare grouped together and collectively headed by a Capital Project (CP) number and title.The physical and electrical characteristics of future transmission plant or changes to thecharacteristics brought about by planned developments are listed in the tables. Thesecharacteristics are indicative at this stage and will be reviewed when the item of plant iscommissioned.Table B-11 Changes in Circuit Characteristics Expected After July 01 st 2009ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100Rating (MVA)MVAR X B Summer WinterCP102 Killoteran-Waterford 110 kV Line DiversionAmend 110 KTN WAT 1 5.0 0.004 0.008 0.050 140 140CP530 Connection of Whitegate Generator into the new Glanagow 220 kV StationAdd 220 AD GGO 1 3.8 0.000 0.002 0.104 593 593CP590 Raffeen-Trabeg No. 2 110 kV Line UprateAmend 110 RAF TBG 2 9.2 0.006 0.030 0.007 187 223CP376 Connection of Singland 110 kV StationAdd 110 AA SNG 1 5.6 0.004 0.018 0.003 187 223Add 110 SNG KLN 1 4.1 0.003 0.013 0.003 187 223Delete 110 AA KLN 1 … … … … … …CP451b Dungarvan-Knockraha 110 kV Line UprateAmend 110 DGN KRA 1 53.7 0.034 0.175 0.019 187 223CP563 Connection of Garvagh Wind Farm into Corderry 110 kV StationAdd 110 CDY GAR 1 7.3 0.005 0.024 0.003 187 223CP568 Poolbeg-Shellybanks 220 kV Circuit UprateAmend 220 PB SHL 1 0.12 0.0001 0.0001 0.003 593 593CP588 Kilbarry-Mallow 110 kV Line UprateAmend 110 KBY MAL 1 29.1 0.030 0.097 0.010 137 164CP600 Connection of Boggeragh Wind Farm into Clashavoon 220 kV StationAdd 110 BGH CLA 1 13.5 0.009 0.044 0.005 187 223CP620 Arva - Gortawee 110kV Line UprateAmend 110 ARV GWE 1 30.6 0.019 0.099 0.011 187 223B-14

TRANSMISSION FORECAST STATEMENT 2010-2016s tTable B-11 Changes in Circuit Characteristics Expected After July 01 2009(continued)ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP285 Looping of the Tee-Connected Kilteel 110 kV StationAdd 110 KTL MAY 1 21.4 0.022 0.071 0.007 120 128Add 110 KTL MON 1 8.9 0.009 0.030 0.003 120 128Delete 110 KTL KTL T 1 … … … … … …Delete 110 KLT T MAY 1 … … … … … …Delete 110 KLT T MON 1 … … … … … …CP575 Corraclassey-Gortawee 110kV Line UprateAmend 110 COR GWE 1 10.9 0.007 0.036 0.004 187 223CP217 Newbridge Loop-in of the Blake-Cushaling-Maynooth 110 kV LineAdd 110 BLK T NEW 1 12.2 0.013 0.041 0.004 137 164Add 110 CUS NEW 1 31.2 0.033 0.104 0.011 137 164Delete 110 BLK T CUS 1 … … … … … …CP370 Crane - Wexford 110kV Line UprateAmend 110 CRA WEX 1 21.3 0.022 0.071 0.007 137 164CP385 Drybridge - Louth 110kV Line UprateAmend 110 DRY LOU 1 31.9 0.020 0.104 0.011 187 223CP454 Ardnacrusha - Limerick 110kV Line UprateAmend 110 AA LIM 1 11.7 0.007 0.037 0.021 187 223Connection of Adamstown 110 kV StationAdd 110 INC ADM 1 10.5 0.008 0.016 0.105 140 140Add 110 ADM GCA 1 2.5 0.002 0.004 0.025 140 140CP601 Connection of Dromada Wind Farm into Trien 110 kV Station (via Athea)Add 110 TRI ATE 1 11.0 0.007 0.036 0.004 187 223Add 110 ATE DRO 1 7.0 0.005 0.011 0.070 140 140B-15

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-12 Changes in Circuit Characteristics Expected in 2010ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterConnection of Kilmahud 110 kV StationAdd 110 GCA KUD 1 2.1 0.002 0.003 0.021 140 140Add 110 GCA KUD 2 2.1 0.002 0.003 0.021 140 140CP602 Connection of Keelderry Wind Farm into Derrybrien 110 kV StationAdd 110 KEE DYN 1 6.5 0.004 0.021 0.002 187 223CP479 Connection of Athea Wind Farm into Trien 110 kV StationAdd 110 ATE TRI 1 11.0 0.007 0.036 0.004 187 223CP555 Connection of Castledockrill Wind Farm into the new Lodgewood 220 kV StationAdd 110 LWD CDK 1 6.6 0.003 0.009 0.041 116 116Connection of Stevenstown 110 kV station and Loop-in of Finglas-Glasmore 110 kV LineAdd 110 GLA SVN 1 18.0 0.017 0.055 0.052 137 154Add 110 FIN SVN 1 32.2 0.039 0.104 0.056 107 120Delete 110 FIN GLA 2 … … …. … … …CP592 Construction of Aghada-Rafeen 220 kV CircuitAdd 220 AD RAF 1 15.0 0.001 0.010 0.215 431 518CP489 Connection of Carrowbeg 110 kV StationAdd 110 CBR CBG 1 20.0 0.031 0.069 0.006 107 126CP549 Shannonbridge-Dallow T-Portlaoise 110kV Line UprateAmend 110 SH DAL T 1 12.0 0.008 0.039 0.007 187 223Amend 110 DAL T PLS 1 54.7 0.034 0.178 0.019 187 223CP584 Shannonbridge-Ikerrin T 110 kV Line UprateAmend 110 SH IKE T 1 53.7 0.034 0.175 0.019 187 223CP254 Cashla Loop-in of Dalton-Galway 110 kV LineAdd 110 CSH DLT 1 52 0.081 0.179 0.017 107 126Add 110 CSH GAL 4 18.5 0.029 0.064 0.006 107 126Delete 110 DLT GAL 1 … … … … … …CP041 Connection of Hartnett's Cross 110 kV StationAdd 110 HTS MAC 1 4.5 0.007 0.016 0.002 107 126CP197 Construction of Cushaling-Thornsberry 110 kV LineAdd 110 CUS TSB 1 32.0 0.0201 0.104 0.0113 187 223CP138 Connection of Nenagh 110 kV StationAdd 110 KLN NEN 1 33.6 0.052 0.116 0.011 107 126B-16

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-12 Changes in Circuit Characteristics Expected in 2010 (continued)ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP173 Connection of Banoge 110 kV StationAdd 110 ARK BOG 1 22.6 0.035 0.078 0.007 107 126Add 110 BOG CRA 1 26.9 0.042 0.093 0.009 107 126Delete 110 ARK CRA 1 … … … … … …CP175 Charleville-Killonan 110 kV Line UprateAmend 110 CHA KLN 1 36.9 0.039 0.123 0.013 137 164CP201 Loop-in of Athy 110 kVAdd 110 ATY CLW 1 25.0 0.039 0.086 0.008 107 126Add 110 ATY PLS 1 26.6 0.041 0.092 0.009 107 126Delete 110 CLW ATY T 1 … … … … … …Delete 110 PLS ATY T 1 … … … … … …Delete 110 ATY ATY T 1 … … … … … …CP218 Construction of Gorman-Navan 3 rd 110 kV LineAdd 110 GOR NAV 3 6.5 0.007 0.022 0.002 137 164CP241 Construction of Lodgewood 220 kV StationAdd 220 ARK LWD 1 40.5 0.005 0.035 0.053 431 518Add 110 CRA LWD 1 8.0 0.005 0.026 0.003 187 223Add 220 GI LWD 1 48.3 0.006 0.042 0.063 431 518Add 220/110 LWD LWD 1 … 0.001 0.064 … 250 250Delete 220 ARK GI 1 … … … … … …CP061 Maynooth-Kilteel-Monread 110 kV Line UprateAmend 110 KTL MAY 1 21.4 0.022 0.071 0.007 137 164CP246 Construction of Tralee-Tarbert 2 nd 110 kV LineAdd 110 TB TRL 2 47.0 0.030 0.153 0.017 187 223CP626 Killonan - Knockraha 220kV Line UprateAmend 220 KLN KRA 1 82.4 0.055 0.085 0.000 431 518B-17

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-13 Changes in Circuit Characteristics Expected in 2011ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP228 Kilbarry-Marina 110 kV Line UpratingAmend 110 KBY MR 1 4.0 0.004 0.013 0.003 111 143Amend 110 KBY MR 2 4.0 0.004 0.013 0.003 111 143CP544 Connection of Salthill 110 kV StationAdd 110 GAL SAL 1 5.8 0.004 0.009 0.059 140 140Add 110 CSH SAL 1 24.6 0.033 0.073 0.067 107 126Delete 110 CSH GAL 4 … … … … … …CP641 Construction of Nore 110kV Station and LinesAdd 110 KKY NO 1 3.6 0.002 0.004 0.022 140 143CP292a Construction of Gorman-Meath Hill 110 kV LineAdd 110 GOR MTH 1 27 0.028 0.090 0.009 137 164CP374 Construction of Arva-Shankill 2 nd 110 kV LineAdd 110 ARV SKL 2 18.0 0.011 0.059 0.006 187 223CP406 Cashla-Cloon 110 kV Line UprateAmend 110 CSH CLN 1 22.8 0.014 0.074 0.008 187 223CP587 Construction of Glanagow-Rafeen 220 kV CircuitAdd 220 GGO RAF 1 9.5 0.000 0.004 0.260 593 593CP615 Construction of Glenree 110 kV Station and LinesAdd 110 CUN GLR 1 27.9 0.043 0.096 0.009 107 126Add 110 MOY GLR 1 14.2 0.022 0.049 0.005 107 126Delete 110 CUN MOY 1 … … … … … …CP552 Athlone-Shannonbridge 110 kV Line UprateAmend 110 ATH SH 1 21.6 0.014 0.070 0.016 187 223CP211 Construction of Srananagh 220 kV Station and LinesAdd 220 FLA SRA 1 55 0.006 0.048 0.072 431 518Add 220/110 SRA SRA 2 … 0.001 0.064 … 250 250CP644 Construction of Bracklone 110kV Station and LinesAdd 110 PLS BRA 1 19.3 0.030 0.067 0.006 107 126Add 110 NEW BRA 1 22.96 0.024 0.077 0.008 107 126Delete 110 NEW PLS 1 … … … … … …B-18

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-14 Changes in Circuit Characteristics Expected in 2012ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterConnection of Cauteen 110 kV StationAdd 110 KLN CTN 1 28.1 0.044 0.098 0.009 107 126Add 110 TIP CTN 1 13.2 0.021 0.046 0.004 107 126Delete 110 KLN TIP 1 … … … … … …Connection of Ballakelly Generator into the new Ballakelly 220 kV StationAdd 220 BY LOU 1 1.5 0.000 0.001 0.041 593 593CP261 Construction of Athlone-Shannonbridge 2 nd 110 kV LineAdd 110 ATH SH 2 25.0 0.016 0.081 0.009 187 223Connection of Cherrywood 110 kV StationAdd 110 CKM CHE 1 4 0.004 0.008 0.030 107 126Add 110 CHE CHE T 1 2.2 0.004 0.008 0.001 107 126Add 110 FAS CHE T 1 5.0 0.008 0.017 0.002 107 126Add 110 CKM CHE T 1 2.9 0.005 0.010 0.001 107 126Delete 110 CKM FAS 1 … … … … … …CP125 Connection of Screeb 110 kV StationAdd 110 SCR SAL 1 53.2 0.053 0.166 0.048 120 131CP466 Construction of a new 400 kV Mid-Cavan StationAdd 400/220 MCV MCV 1 … 0.000 0.027 … 500.0 500.0Add 400.0 MCV TLE 1 82.0 0.002 0.018 0.414 1424.0 1713.0Add 400.0 MCV WOO 1 58.0 0.001 0.013 0.293 1424.0 1713.0Add 220.0 FLA MCV 1 90.0 0.011 0.078 0.118 431.0 518.0Add 220.0 LOU MCV 1 20.0 0.002 0.017 0.026 431.0 518.0Delete 220.0 FLA LOU 1 110.1 0.013 0.095 0.144 431.0 518.0B-19

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-15 Changes in Circuit Characteristics Expected in 2013ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP075 Construction of Ballycummin 110 kV stationAdd 110 BCM MTN 1 4.6 0.003 0.015 0.002 187 223Add 110 LIM BCM 1 3.7 0.003 0.012 0.001 137 164Delete 110 LIM MTN 1 … … … … … …CP506 Construction of Finnstown 220 kV StationAdd 220 INC FNT 1 10.6 0.001 0.009 0.014 431 518Add 220 INC FNT 2 10.6 0.001 0.009 0.014 431 518Add 220 MAY FNT 1 9.7 0.001 0.009 0.013 431 518Add 220 MAY FNT 2 9.7 0.001 0.009 0.013 431 518Delete 220 INC MAY 1 … … … … … …Delete 220 INC MAY 2 … … … … … …Add 220/110 FNT FNT 1 … 0.001 0.065 … 250 250Add 110 INC GCA 3 8.0 0.006 0.012 0.080 140 140Add 110 FNT GCA 1 0.9 0.001 0.001 0.009 140 140Add 110 FNT GCA 2 0.9 0.001 0.001 0.009 140 140Add 110 FNT ADM 1 1.6 0.001 0.002 0.016 140 140Add 110 FNT ADM 2 1.6 0.001 0.002 0.016 140 140Delete 110 INC ADM 1 … … … … … …Delete 110 ADM GCA 1 … … … … … …CP437 Connection of Balgriffin 220 kV StationAdd 220 BGF FIN 1 17.0 0.001 0.007 0.465 593 593Add 220/110 BGR BGR 1 … 0.001 0.065 … 250 250CP501 Construction of Clashavoon-Dunmanway 110 kV LineAdd 110 CLA DMY 1 35.0 0.022 0.114 0.012 187 223B-20

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-15 Changes in Circuit Characteristics Expected in 2013 (continued)ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP647 Construction of a new Kilpaddoge 220/110 kV StationAdd 220 KPG TB 1 3.3 0.000 0.003 0.004 431 518Add 220 KPG TB 2 3.3 0.000 0.003 0.004 431 518Add 220 KPG KLN 1 68.0 0.008 0.059 0.089 431 518Add 220 KPG CLA 1 94.7 0.011 0.082 0.124 431 518Add 110 KPG AUG 1 32.8 0.021 0.107 0.012 187 223Add 110 KPG RAT 1 32.2 0.033 0.108 0.011 137 164Add 110 KPG TRI 1 19.4 0.020 0.065 0.007 120 128Add 110 KPG TRL 1 39.4 0.060 0.135 0.013 107 126Add 110 KPG TRL 2 44.4 0.046 0.148 0.015 137 164Delete 220 TB KLN 1 … … … … … …Delete 220 TB CLA 1 … … … … … …Delete 110 TB AUG 1 … … … … … …Delete 110 TB RAT 1 … … … … … …Delete 110 TB TRI 1 … … … … … …Delete 110 TB TRL 1 … … … … … …Delete 110 TB TRL 2 … … … … … …Construction of Kilpaddoge - Moneypoint 220 kV cableAdd 220 KPG MP 1 5.5 0.000 0.002 0.150 593 593Construction of new Ralapanne 110 kV stationAdd 110 RAL KPG 1 3.4 0.002 0.011 0.001 187 223Add 110 RAL KPG 2 3.4 0.002 0.011 0.001 187 223CP603 Construction of Mulreavy 110 kV StationAdd 110 MRY CF 1 31.3 0.020 0.102 0.011 187 223CP421b Construction of Bunbeg 110 kV StationAdd 110 BUN TIV 1 35.0 0.054 0.120 0.011 107 126CP421 Construction of Binbane-Letterkenny 110 kV LineAdd 110 BIN TIV 1 22.0 0.014 0.072 0.008 187 223Add 110 LET TIV 1 47.0 0.030 0.153 0.017 187 223CP596 Construction of Mullingar - Kinnegad 110kV lineAdd 110 MUL KIN 1 27.0 0.017 0.088 0.010 187 223B-21

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-16 Changes in Circuit Characteristics Expected Beyond 2013ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP 500 Construction of Knockanure 220/110 kV StationAdd 220 KNR CLA 1 77.3 0.009 0.067 0.101 431 518Add 220 KNR KPG 1 17.3 0.002 0.015 0.023 431 518Delete 220 KPG CLA 1 … … … … … …Add 110 ATE KNR 1 9.5 0.006 0.031 0.003 187 223Add 110 KNR TRI 1 4.4 0.005 0.017 0.002 120 128Add 110 KNR TRI 2 5.7 0.004 0.019 0.002 187 223Add 110 KNR KPG 1 15.0 0.015 0.050 0.005 137 164Delete 110 ATE TRI 1 … … … … … …Delete 110 KPG TRI 1 … … … … … …CP608 Construction of Knocknagashel 110 kV StationAdd 110 KNG TRI 1 13.1 0.008 0.043 0.005 187 223CP650 & CP651 Construction of Ballyvouskill and Kishkeam 220/110 kV StationsAdd 220 BVK CLA 1 18.4 0.002 0.016 0.024 431 518Add 220 KKM BVK 1 14.5 0.002 0.013 0.019 431 518Add 220 KKM KNR 1 47.0 0.006 0.041 0.062 431 518Delete 220 KNR CLA 1 … … … … … …Add 110 BVK GRO 1 4.0 0.003 0.013 0.002 187 223Add 110 BVK GRO 2 4.0 0.003 0.013 0.002 187 223Add 110 KKM GLE 1 12.5 0.008 0.041 0.004 187 223Construction of Cordal 110 kV StationAdd 110 KKM CDL 1 8.2 0.005 0.027 0.003 187 223CP606 Construction of Knockacummer 110 kV StationAdd 110 GLE KCR 1 11.2 0.008 0.017 0.112 140 140CP585 Construction of a new Laois 400 kVAdd 380 DSN LSE 1 44.8 0.001 0.010 0.226 1424 1713Add 380 MP LSE 1 170.0 0.003 0.038 0.858 1424 1713Add 400/110 LSE LSE 1 … 0.001 0.027 … 250 250Add 400/110 LSE LSE 2 … 0.001 0.027 … 250 250Add 110 PLS LSE 1 9.7 0.015 0.033 0.003 107 126Add 110 ATY LSE 1 21.9 0.034 0.076 0.007 107 126Delete 400 DSN MP 1 … … … … … …Delete 110 ATY PLS 1 … … … … … …Connection of Ballyragget 110 kV StationAdd 110 LSE BGT 1 28.0 0.018 0.091 0.010 187 223Add 110 KKY BGT 1 22.0 0.014 0.071 0.008 187 223CP597 Construction of Killonan - Ardnacrusha 110 kV LineAdd 110 AA KLN 1 10.6 0.007 0.035 0.004 187 223B-22

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-16 Changes in Circuit Characteristics Expected Beyond 2013 (continued)ChangeVolt(kV)From To No.Length(km)Impedance p.u. on 100MVARating (MVA)R X B Summer WinterCP597 Moneypoint - Tullabrack T - Booltiagh Line UprateAmend 110 MP TBK T 1 6.6 0.004 0.022 0.002 187 223Amend 110 TBK T BOL 1 19.6 0.012 0.064 0.007 187 223CP597 Booltiagh - Ennis Line UprateAmend 110 BOL ENN 1 24.0 0.015 0.078 0.009 187 223Construction of Muingnaminnane 110 kV StationAdd 110 TRL MUI 1 14.0 0.010 0.021 0.141 140 140CP250 Construction of Castlebar - Tonroe 220 kV LineAdd 110 CBR TON 1 53.2 0.024 0.185 0.089 187 223Table B-17 Characteristics of Grid Transformers Expected in 2009Station / TransformerRating(MVA)HV/LV (kV)Impedance p.u. on 100MVAVoltage Ratio TappingRangeR X + -CP264Finglas T2105 250 220/110 0.001 0.064 9% 17%Table B-18 Characteristics of Grid Transformers Expected in 2010Station / TransformerRating(MVA)HV/LV (kV)Impedance p.u. on 100MVAVoltage Ratio TappingRangeR X + -CP511Killonan T2103 250 220/110 0.000 0.063 9% 18%CP586Knockraha T2103 250 220/110 0.001 0.065 9% 17%CP241Lodgewood T2101 250 220/110 0.001 0.064 10% 18%CP600Clashavoon T2102 250 220/110 0.000 0.065 9% 17%CP513Carrickmines T2103 250 220/110 0.001 0.064 9% 17%CP523Inchicore T2103 250 220/110 0.000 0.060 9% 18%B-23

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-19 Characteristics of Grid Transformers Expected in 2011Station / TransformerRating(MVA)HV/LV (kV)Impedance p.u. on 100MVAVoltage Ratio TappingRangeR X + -CP211Srananagh T2101 250 220/110 0.001 0.064 9% 18%Table B-20 Characteristics of Grid Transformers Expected in 2012Station / TransformerRating(MVA)HV/LV (kV)Impedance p.u. on 100MVAVoltage Ratio TappingRangeR X + -CP466Mid-Cavan T4201 500 400/220 0.000 0.027 10% 7%CP483Carrickmines T2104 250 220/110 0.001 0.065 9% 17%Table B-21 Characteristics of Grid Transformers Expected in 2013Station / TransformerRating(MVA)HV/LV (kV)Impedance p.u. on 100MVAVoltage Ratio TappingRangeR X + -CP437Balgriffin T2101 250 220/110 0.001 0.064 9% 17%CP506Finnstown T2101 250 220/110 0.001 0.064 9% 17%CP647Kilpaddoge T2101 250 220/110 0.001 0.065 9% 17%Kilpaddoge T2102 250 220/110 0.001 0.065 9% 17%Kilpaddoge T2103 250 220/110 0.001 0.065 9% 17%CP399Moneypoint T4201 500 400/220 0.000 0.027 10% 7%CP500Knockanure T2101 250 220/110 0.001 0.064 9% 17%CP650Ballyvouskill T2101 250 220/110 0.001 0.064 9% 17%CP651Kishkeam T2101 250 220/110 0.001 0.064 9% 17%B-24

TRANSMISSION FORECAST STATEMENT 2010-2016Table B-22 Characteristics of Grid Transformers Expected Beyond 2013Station / TransformerRating(MVA)HV/LV (kV)Impedance p.u. on 100MVAVoltage Ratio TappingRangeR X + -CP585Laois T4101 250 400/110 0.000 0.072 15% 15%Laois T4102 250 400/110 0.000 0.072 15% 15%CP597Moneypoint T2101 250 220/110 0.001 0.065 9% 17%Table B-23 Characteristics of Reactive Compensation Expected in 2010Station Bus PlantMvar CapabilityGenerateAbsorbCP512Kilkenny KKY 110 2 Capacitors (2 x 15) 30 -CP594Mullingar MUL 110 2 Capacitors (2 x 15) 30 -CP514Ardnacrusha AA 110 1 Capacitor 30 -CP528Kilteel KTL 110 1 Capacitor 30 -CP467Louth LOU 110 1 Capacitor 30 -CP618Lisdrum LIS 110 2 Capacitors (2 x 15) 30 -CP515Drumline DRU 110 1 Capacitor 15 -CP529Thurles THU 110 1 Capacitor 15 -Table B-24 Characteristics of Reactive Compensation Expected in 2016Station Bus PlantMvar CapabilityGenerateAbsorbCP619Shankill SKL 110 1 Capacitor 30 -Shankill SKL 110 1 Capacitor 15 -B-25

APPENDIX CDEMANDFORECASTSAT INDIVIDUALTRANSMISSIONINTERFACE STATIONS

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX C DEMAND FORECASTS AT INDIVIDUAL TRANSMISSION INTERFACESTATIONSTransmission interface stations are the points of connection between the transmissionsystem and the distribution system or directly-connected customers. Tables C-1 to C-3 listthe demand forecasts at each interface station for each of the seven years to 2016 at thetime of system winter peak, summer peak and summer valley, respectively.The station demand values do not include transmission losses. Demand at stations thatinterface with the distribution system do include distribution losses.All transmission interface stations are 110 kV stations except for the four 220 kV interfacestations that supply the Dublin City networks operated by the DSO. These 220 kV interfacestations, Carrickmines, Finglas, Inchicore and Poolbeg, are included at the bottom of thetable.Some 110 kV stations do not interface with distribution stations or directly-connecteddemand stations. As there are no demand values for such stations, they are not included inthis table.Table C-1 Demand Forecasts at Time of Winter PeakBusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016AA ARDNACRU 0.96 76.4 78.0 79.8 81.5 83.3 85.1 86.9AD AGHADA 0.97 1.8 1.9 1.9 2.0 2.0 2.0 2.1AHA AHANE 0.99 5.5 5.6 5.8 5.9 6.0 6.1 6.3ANR ANNER 0.94 11.0 11.0 11.0 11.0 11.0 11.0 11.0ARI ARIGNA 1.00 3.7 3.8 3.8 3.9 4.0 4.1 4.2ARK ARKLOW 0.99 33.8 34.5 35.3 36.1 36.9 37.6 38.4ATH ATHLONE 0.95 59.7 61.0 62.4 63.7 65.1 66.5 67.9ATY ATHY 0.95 16.7 17.1 17.5 17.9 18.2 18.6 19.0BAL BALTRASN 0.97 25.8 26.2 26.7 27.1 27.6 28.0 28.5BAN BANDON 0.96 29.9 30.6 40.5 41.4 42.3 43.2 44.1BAR BARRYMOR 0.96 23.6 24.1 24.6 25.1 25.7 26.2 26.8BCM BALLYCUM 0.96 - - - 9.5 9.8 10.0 10.2BDA BARODA 0.96 19.0 19.0 19.0 19.0 19.0 19.0 19.0BDN BALLYDIN 0.96 17.8 18.1 18.3 18.6 18.9 19.2 19.4BEG BALLYBEG 0.95 13.2 13.5 13.8 14.1 14.4 14.7 15.0BIN BINBANE 0.95 22.2 22.7 23.2 14.2 14.5 14.8 15.1BK BELLACOR 0.96 6.1 6.3 6.4 6.5 6.7 6.8 7.0BLI BALLYLIC 0.99 12.7 13.0 13.3 13.6 13.9 14.2 14.5BLK BLAKE 0.97 30.6 19.4 19.8 20.2 20.7 21.1 21.6BOG BANOGE 0.95 14.1 14.4 14.7 15.0 15.3 15.6 16.0C-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-1 Demand Forecasts at Time of Winter Peak (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016BRI BRINNY 0.95 4.2 4.2 4.2 4.2 4.2 4.2 4.2BRY BARNAHEL 0.98 28.3 28.9 29.6 30.2 30.8 31.5 32.2BUN BUNBEG 0.95 - - - 14.2 14.5 14.8 15.1BUT BUTLERST 0.98 37.4 38.2 39.0 39.9 40.7 41.6 42.5CAH CAHIR 0.97 23.0 23.4 23.9 24.3 24.8 25.3 25.7CBG CARROWBE 0.96 19.7 20.1 20.6 21.0 21.5 21.9 22.4CBR CASTLEBA 0.93 34.4 35.2 36.0 36.7 37.5 38.3 39.1CF CATH_FAL 0.95 17.0 17.4 17.8 18.2 18.6 18.9 19.4CFM CASTLEFA 0.95 44.0 44.0 44.0 44.0 44.0 44.0 44.0CHA CHARLEVI 0.94 21.3 21.7 22.2 22.7 23.2 23.7 24.2CLN CLOON 0.95 25.7 26.3 26.9 27.5 28.1 28.6 29.3CLW CARLOW 0.97 53.9 66.9 81.5 83.3 85.1 86.9 88.8COL COLLEGE 0.95 38.3 38.7 39.0 39.4 39.7 40.1 40.5COS CARICKON 0.98 28.2 28.8 29.4 30.1 30.7 31.4 32.0COW COW 0.99 17.2 17.6 18.0 18.4 18.8 19.2 19.6CRA CRANE 0.97 31.9 32.6 33.3 34.0 34.8 35.5 36.3CRO COOLROE 1.00 10.4 10.6 10.8 11.1 11.3 11.5 11.8CVW CASTLEVI 0.98 22.4 22.8 23.4 23.9 24.4 24.9 25.4DAL DALLOW 0.97 16.0 16.4 16.8 17.1 17.5 17.9 18.2DDK DUNDALK 0.97 42.4 43.3 44.2 45.2 46.2 47.2 48.2DFR DUNFIRTH 0.98 6.0 6.1 6.3 6.4 6.5 6.7 6.8DGN DUNGARVA 0.98 30.6 31.2 31.9 32.6 33.3 34.0 34.7DLT DALTON 0.95 20.4 20.8 21.3 21.7 22.2 22.7 23.2DMY DUNMANWA 0.96 32.2 32.9 29.4 30.0 30.7 31.3 32.0DOO DOON 0.98 30.4 31.1 31.8 32.5 33.2 33.9 34.6DRU DRUMLINE 0.92 25.4 26.0 33.5 34.1 34.7 35.3 35.9DRY DRYBRIDG 0.97 82.6 84.4 86.3 88.1 90.0 91.9 93.9ENN ENNIS 0.96 70.0 71.1 72.2 73.4 74.5 75.7 76.9GAL GALWAY 0.97 143.0 90.5 92.5 94.5 96.5 98.6 100.7GCA GRANGE 0.95 59.2 60.3 61.6 62.8 64.0 65.2 66.5GI GREAT 0.95 21.8 22.3 22.8 23.3 23.8 24.3 24.8GIL GILRA 0.95 11.9 11.9 11.9 11.9 11.9 11.9 11.9GLA GLASMORE 0.94 53.6 54.8 56.0 57.2 58.5 59.7 61.0GLE GLENLARA 0.91 11.6 11.9 12.1 12.4 12.7 12.9 13.2GRA GRANGE 0.95 53.8 55.0 56.2 57.4 58.7 59.9 61.2GRI GRIFFINR 0.97 59.6 60.8 62.2 63.5 64.9 66.3 67.7GWE GORTAWEE 0.95 26.0 26.1 26.3 26.5 26.8 27.0 27.2HTS HARNETTS 0.99 8.0 8.1 8.3 8.5 8.7 8.9 9.1IKE IKERRIN 0.96 26.1 26.7 27.3 27.9 28.5 29.1 29.7KBY KILBARRY 0.98 89.2 91.1 93.2 95.2 97.2 99.3 101.4KER KNOCKERA 0.96 30.4 31.0 31.7 32.4 33.1 33.8 34.5KIN KINNEGAD 0.95 11.7 11.7 11.7 11.7 11.7 11.7 11.7C-2

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-1 Demand Forecasts at Time of Winter Peak (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016KKY KILKENNY 0.96 63.1 64.4 65.9 67.3 68.7 70.2 71.7KLM KILMORE 0.95 32.7 32.9 33.2 33.4 33.6 33.9 34.1KTL KILTEEL 0.93 31.9 32.5 33.3 34.0 34.7 35.5 36.2KTN KILLOTER 0.95 9.8 10.0 10.2 10.5 10.7 10.9 11.1KUD KILMAHUD 0.95 23.8 23.8 23.8 23.8 23.8 23.8 23.8KUR KNOCKUMB 0.95 24.2 24.2 24.2 24.2 24.2 24.2 24.2LA LANESBOR 0.96 15.6 15.9 16.3 16.7 17.0 17.4 17.7LET LETTERKE 0.95 62.8 64.1 65.6 62.3 63.7 65.1 66.4LIB LIBERTY 0.89 18.6 19.0 19.4 19.9 20.3 20.7 21.2LIM LIMERICK 0.98 72.2 73.7 75.4 67.4 68.9 70.4 71.9LIS LISDRUM 0.97 25.7 26.2 26.8 27.4 28.0 28.6 29.2MAC MACROOM 0.98 9.1 9.3 4.5 4.6 4.7 4.8 4.9MAL MALLOW 0.97 20.7 21.1 21.6 22.1 22.6 23.0 23.5MCE MACETOWN 0.97 29.6 30.1 30.6 31.2 31.8 32.3 32.9MID MIDLETON 0.97 36.6 37.4 38.2 39.0 39.9 40.7 41.6MLN MULLAGHA 0.96 28.0 28.4 28.9 29.3 29.8 30.3 30.7MON MONREAD 0.98 15.6 15.9 16.3 16.7 17.0 17.4 17.7MOY MOY 0.97 30.6 31.3 32.0 32.6 33.4 34.1 34.8MR MARINA 0.98 20.2 20.6 21.1 21.6 22.0 22.5 23.0MTH MEATH 0.95 39.6 40.5 41.4 42.3 43.2 44.1 45.0MUL MULLINGA 0.97 46.6 47.6 48.7 49.7 50.8 51.9 53.0MUN MUNGRET 0.95 25.7 25.7 25.7 25.7 25.7 25.7 25.7NAN NANGOR 0.95 26.0 26.0 26.0 26.0 26.0 26.0 26.0NAV NAVAN 0.96 68.3 69.7 71.3 72.8 74.4 76.0 77.6NEN NENAGH 0.95 25.5 26.0 26.6 27.2 27.8 28.4 29.0NEW NEWBRIDG 0.98 45.9 46.9 48.0 49.0 50.1 51.1 52.2OLD OLDCOURT 0.94 0.3 0.3 0.3 0.3 0.3 0.3 0.3OUG OUGHTRAG 0.98 25.8 26.3 26.9 27.5 28.1 28.7 29.3PLA PLATIN 0.95 54.6 54.6 54.6 54.6 54.6 54.6 54.6PLS PORTLAOI 0.95 39.9 40.7 41.7 42.6 43.5 44.4 45.4RAT RATHKEAL 0.96 25.4 26.0 26.6 27.1 27.7 28.3 28.9RIC RICHMOND 0.96 32.2 32.9 33.7 34.4 35.1 35.9 36.7RNW RINAWADE 0.95 15.2 15.2 15.2 15.2 15.2 15.2 15.2RSY RINGASKI 0.98 4.9 5.0 5.1 5.2 5.3 5.4 5.6RYB RYEBROOK 0.95 81.0 81.0 81.0 81.0 81.0 81.0 81.0SAL SALTHILL 0.97 - 42.8 43.7 44.7 45.6 46.6 47.6SKL SHANKILL 0.94 47.5 48.5 49.6 50.7 51.8 52.9 54.0SLI SLIGO 0.96 53.1 54.2 55.4 56.6 57.8 59.1 60.3SNG SINGLAND 0.96 10.7 11.0 11.2 11.5 11.7 12.0 12.2SOM SOMERSET 0.98 24.2 24.7 25.2 25.8 26.3 26.9 27.5STR STRATFOR 0.97 22.9 23.4 23.9 24.4 24.9 25.5 26.0SVN STEVENST 0.95 11.6 11.9 12.2 12.4 12.7 13.0 13.2TBG TRABEG 0.98 65.3 66.7 68.2 69.7 71.2 72.7 74.3C-3

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-1 Demand Forecasts at Time of Winter Peak (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016TBK TULLABRA 0.91 11.2 11.4 11.7 11.9 12.2 12.4 12.7THU THURLES 0.94 28.2 28.8 29.5 30.1 30.7 31.4 32.1TIP TIPPERAR 0.97 15.7 16.1 16.4 16.8 17.1 17.5 17.9TLK TRILLICK 0.99 16.8 17.2 17.6 17.9 18.3 18.7 19.1TON TONROE 0.95 12.6 12.9 13.2 13.5 13.7 14.0 14.3TRI TRIEN 0.95 23.1 23.6 24.1 24.6 25.2 25.7 26.3TRL TRALEE 0.92 44.7 45.6 46.7 47.7 48.7 49.7 50.8TSB THORNSBE 0.97 31.7 32.4 33.1 33.8 34.5 35.3 36.0WAT WATERFOR 0.99 41.9 42.8 43.7 44.7 45.6 46.6 47.6WEX WEXFORD 0.97 53.9 55.0 56.3 57.5 58.7 60.0 61.2WHI WHITEGAT 0.95 7.0 7.0 7.0 7.0 7.0 7.0 7.0CKM Carrickmines 0.96 307.4 313.9 340.1 346.9 354.0 361.2 368.5FIN Finglas 0.95 311.5 317.8 324.6 331.2 338.0 344.9 351.9INC Inchicore 0.95 224.2 228.8 233.8 238.6 243.5 248.5 253.6PB Poolbeg 0.97 184.0 187.7 191.6 195.4 199.4 203.3 207.4TOTAL 4519 4592 4723 4813 4905 4999 5094Table C-2 Demand Forecasts at Time of Summer PeakBusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016AA ARDNACRU 0.96 77.2 57.3 58.8 59.8 61.1 62.5 63.9AD AGHADA 1.00 1.2 1.2 1.2 1.2 1.3 1.3 1.3AHA AHANE 0.98 4.1 4.1 4.3 4.3 4.4 4.5 4.6ANR ANNER 0.94 11.0 11.0 11.0 11.0 11.0 11.0 11.0ARI ARIGNA 0.97 4.3 4.4 4.5 4.6 4.7 4.8 4.9ARK ARKLOW 0.96 37.2 31.4 32.3 32.8 33.5 34.2 35.0ATH ATHLONE 0.95 52.5 53.6 55.1 56.0 57.3 58.5 59.8ATY ATHY 0.95 8.2 14.2 14.6 14.8 15.2 15.5 15.8BAL BALTRASN 0.97 21.6 21.9 22.3 22.6 23.0 23.4 23.7BAN BANDON 0.92 23.8 24.3 25.0 33.2 34.0 34.7 35.5BAR BARRYMOR 0.97 17.8 18.2 18.7 19.0 19.4 19.9 20.3BCM BALLYCUM 0.96 - - - 7.9 8.1 8.3 8.5BDA BARODA 0.96 19.0 19.0 19.0 19.0 19.0 19.0 19.0BDN BALLYDIN 0.95 15.5 15.7 16.0 16.1 16.4 16.6 16.8BEG BALLYBEG 0.97 8.6 8.8 9.1 9.2 9.4 9.6 9.8BIN BINBANE 1.00 12.9 13.2 13.6 13.8 6.0 6.1 6.3BK BELLACOR 0.94 3.7 3.8 3.9 4.0 4.1 4.2 4.3BLI BALLYLIC 0.79 5.7 5.8 6.0 6.1 6.2 6.4 6.5BLK BLAKE 0.92 21.4 21.9 12.3 12.5 12.8 13.1 13.4BOG BANOGE 0.95 - 11.9 12.2 12.4 12.7 13.0 13.3BRI BRINNY 0.95 4.2 4.2 4.2 4.2 4.2 4.2 4.2C-4

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-2 Demand Forecasts at Time of Summer Peak (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016BRY BARNAHEL 0.96 35.2 36.0 37.0 37.6 38.4 39.2 40.1BUN BUNBEG 0.95 - - - - 12.0 12.3 12.6BUT BUTLERST 0.96 25.3 25.8 26.5 27.0 27.6 28.2 28.8CAH CAHIR 0.94 23.2 23.7 24.3 24.6 25.1 25.6 26.1CBG CARROWBE 0.96 - 16.7 17.2 17.4 17.8 18.2 18.6CBR CASTLEBA 0.93 42.9 27.2 27.9 28.4 29.0 29.7 30.3CF CATH_FAL 0.94 14.8 15.1 15.6 15.8 16.2 16.5 16.9CFM CASTLEFA 0.95 44.0 44.0 44.0 44.0 44.0 44.0 44.0CHA CHARLEVI 0.92 12.3 12.6 12.9 13.1 13.4 13.7 14.0CLN CLOON 0.94 17.3 17.7 18.2 18.5 18.9 19.3 19.7CLW CARLOW 0.95 37.3 42.2 53.5 65.5 66.9 68.4 69.9COL COLLEGE 0.96 40.3 40.7 41.2 41.5 41.9 42.4 42.8COS CARICKON 0.94 28.6 29.2 30.0 30.5 31.2 31.9 32.6COW COW 0.98 15.5 15.8 16.2 16.5 16.9 17.2 17.6CRA CRANE 0.93 23.2 18.5 19.0 19.3 19.7 20.2 20.6CRO COOLROE 0.98 12.1 12.4 12.7 12.9 13.2 13.5 13.8CVW CASTLEVI 0.97 23.3 23.8 24.5 24.9 25.4 26.0 26.6DAL DALLOW 0.89 8.3 8.5 8.7 8.9 9.1 9.3 9.5DDK DUNDALK 0.95 29.0 29.7 30.5 31.0 31.7 32.4 33.1DFR DUNFIRTH 0.96 3.7 3.8 3.9 3.9 4.0 4.1 4.2DGN DUNGARVA 0.96 23.0 23.5 24.2 24.6 25.1 25.7 26.2DLT DALTON 0.96 9.9 10.2 10.4 10.6 10.8 11.1 11.3DMY DUNMANWA 0.92 26.6 27.1 27.9 24.8 25.3 25.9 26.5DOO DOON 0.95 24.5 25.0 25.7 26.2 26.7 27.3 27.9DRU DRUMLINE 0.90 28.4 29.0 36.8 37.3 38.0 38.6 39.3DRY DRYBRIDG 0.96 58.5 59.8 61.4 62.4 63.8 65.2 66.7ENN ENNIS 0.96 55.0 55.8 56.8 57.4 58.3 59.1 60.0GAL GALWAY 0.97 112.7 69.1 71.0 72.2 73.8 75.4 77.1GCA GRANGE 0.99 46.1 46.9 48.1 48.8 49.7 50.7 51.7GI GREAT 0.95 11.1 11.4 11.7 11.9 12.2 12.4 12.7GIL GILRA 0.95 11.9 11.9 11.9 11.9 11.9 11.9 11.9GLA GLASMORE 0.97 26.2 26.8 27.5 27.9 28.6 29.2 29.8GLE GLENLARA 0.97 11.2 11.5 11.8 12.0 12.3 12.5 12.8GRA GRANGE 0.95 34.0 34.8 35.7 36.3 37.1 38.0 38.8GRI GRIFFINR 0.97 32.8 33.5 34.4 35.0 35.7 36.5 37.3GWE GORTAWEE 0.95 24.4 24.6 24.8 24.9 25.1 25.3 25.5HTS HARNETTS 0.99 - 6.8 7.0 7.1 7.2 7.4 7.5IKE IKERRIN 0.92 19.5 20.0 20.5 20.8 21.3 21.8 22.3KBY KILBARRY 0.97 86.9 88.8 91.3 92.8 94.9 96.9 99.1KER KNOCKERA 0.94 25.4 25.9 26.7 27.1 27.7 28.3 28.9KIN KINNEGAD 0.95 11.7 11.7 11.7 11.7 11.7 11.7 11.7KKY KILKENNY 0.94 50.5 47.5 48.8 49.6 50.8 51.9 53.0KLM KILMORE 0.96 37.2 37.6 38.0 38.2 38.6 38.9 39.3C-5

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-2 Demand Forecasts at Time of Summer Peak (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016KTL KILTEEL 0.92 28.9 29.6 30.4 30.9 31.6 32.3 33.0KTN KILLOTER 0.95 13.5 13.8 14.1 14.4 14.7 15.0 15.3KUD KILMAHUD 0.95 23.8 23.8 23.8 23.8 23.8 23.8 23.8KUR KNOCKUMB 0.95 24.2 24.2 24.2 24.2 24.2 24.2 24.2LA LANESBOR 0.94 11.3 11.6 11.9 12.1 12.3 12.6 12.9LET LETTERKE 0.82 44.9 45.9 47.2 47.9 45.0 46.0 47.1LIB LIBERTY 0.97 15.3 15.7 16.1 16.3 16.7 17.1 17.5LIM LIMERICK 0.97 58.3 59.6 61.2 54.3 55.5 56.7 58.0LIS LISDRUM 0.93 22.9 23.4 24.1 24.5 25.0 25.6 26.1MAC MACROOM 0.84 14.4 7.9 8.2 4.0 4.1 4.2 4.3MAL MALLOW 0.95 16.1 16.5 17.0 17.2 17.6 18.0 18.4MCE MACETOWN 0.96 25.3 25.8 26.3 26.7 27.2 27.7 28.2MID MIDLETON 0.97 23.1 23.6 24.2 24.6 25.2 25.8 26.3MLN MULLAGHA 0.96 24.5 24.9 25.3 25.6 26.0 26.4 26.9MON MONREAD 0.97 13.0 13.3 13.7 13.9 14.2 14.5 14.8MOY MOY 0.95 22.3 22.7 23.4 23.8 24.3 24.8 25.4MR MARINA 0.97 19.6 20.0 20.6 20.9 21.4 21.8 22.3MTH MEATH 0.89 32.0 32.7 33.7 34.2 35.0 35.7 36.5MUL MULLINGA 0.94 34.6 35.3 36.3 36.9 37.7 38.6 39.4MUN MUNGRET 0.95 25.7 25.7 25.7 25.7 25.7 25.7 25.7NAN NANGOR 0.95 26.0 26.0 26.0 26.0 26.0 26.0 26.0NAV NAVAN 0.95 45.5 46.5 47.8 48.6 49.7 50.8 51.9NEN NENAGH 0.95 - 21.6 22.2 22.6 23.1 23.6 24.1NEW NEWBRIDG 0.95 34.0 34.8 35.8 36.3 37.2 38.0 38.8OLD OLDCOURT 0.94 0.3 0.3 0.3 0.3 0.3 0.3 0.3OUG OUGHTRAG 0.97 20.5 20.9 21.5 21.9 22.4 22.8 23.4PLA PLATIN 0.95 54.6 54.6 54.6 54.6 54.6 54.6 54.6PLS PORTLAOI 0.93 38.9 33.9 34.9 35.5 36.2 37.0 37.9RAT RATHKEAL 0.93 25.5 26.1 26.8 27.2 27.8 28.4 29.1RIC RICHMOND 0.94 26.7 27.3 28.1 28.5 29.2 29.8 30.5RNW RINAWADE 0.95 15.2 15.2 15.2 15.2 15.2 15.2 15.2RSY RINGASKI 0.99 2.1 2.1 2.2 2.2 2.3 2.3 2.4RYB RYEBROOK 0.95 81.0 81.0 81.0 81.0 81.0 81.0 81.0SAL SALTHILL 0.97 - 35.5 36.5 37.1 37.9 38.8 39.6SKL SHANKILL 0.92 45.8 46.8 48.1 48.9 50.0 51.1 52.2SLI SLIGO 0.95 38.8 39.6 40.7 41.4 42.3 43.3 44.2SNG SINGLAND 0.96 8.9 9.1 9.4 9.5 9.7 9.9 10.2SOM SOMERSET 0.95 20.1 20.6 21.1 21.5 22.0 22.4 22.9STR STRATFOR 0.97 6.0 6.2 6.3 6.4 6.6 6.7 6.9SVN STEVENST 0.95 9.7 9.9 10.1 10.3 10.5 10.8 11.0TBG TRABEG 0.98 27.9 28.5 29.3 29.7 30.4 31.1 31.8TBK TULLABRA 0.93 7.8 7.9 8.1 8.3 8.5 8.6 8.8THU THURLES 0.92 35.4 36.2 37.2 37.8 38.6 39.5 40.4TIP TIPPERAR 0.95 15.6 15.9 16.4 16.6 17.0 17.4 17.8C-6

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-2 Demand Forecasts at Time of Summer Peak (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016TLK TRILLICK 0.99 15.8 16.2 16.6 16.9 17.3 17.7 18.1TON TONROE 0.92 12.6 12.9 13.3 13.5 13.8 14.1 14.4TRI TRIEN 0.99 15.5 15.9 16.3 16.6 16.9 17.3 17.7TRL TRALEE 0.98 35.2 35.9 36.9 37.5 38.4 39.2 40.1TSB THORNSBE 0.93 25.8 26.3 27.1 27.5 28.1 28.7 29.4WAT WATERFOR 0.97 39.5 40.3 41.5 42.1 43.1 44.0 45.0WEX WEXFORD 0.95 40.8 41.7 42.9 43.6 44.5 45.5 46.5WHI WHITEGAT 0.95 7.0 7.0 7.0 7.0 7.0 7.0 7.0CKM Carrickmines 0.95 204.4 208.9 214.7 237.2 242.1 247.0 252.0FIN Finglas 0.96 231.7 236.4 242.5 246.2 223.7 256.6 261.8INC Inchicore 0.97 155.9 159.2 163.3 165.8 169.3 172.9 176.5PB Poolbeg 0.96 206.1 210.4 215.9 219.2 223.7 228.4 233.2TOTAL 3623 3681 3776 3859 3906 4009 4085Table C-3 Demand Forecasts at Time of Summer ValleyBusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016AA ARDNACRU 0.95 33.2 26.0 26.7 27.0 27.6 28.3 29.0AD AGHADA 1.00 0.5 0.5 0.5 0.6 0.6 0.6 0.6AHA AHANE 1.00 1.4 1.5 1.5 1.5 1.6 1.6 1.7ANR ANNER 0.94 11.0 11.0 11.0 11.0 11.0 11.0 11.0ARI ARIGNA 0.87 2.2 2.3 2.4 2.4 2.4 2.5 2.6ARK ARKLOW 1.00 11.3 9.1 9.3 9.4 9.7 9.9 10.2ATH ATHLONE 0.99 15.8 16.2 16.6 16.8 17.2 17.6 18.0ATY ATHY 0.95 3.0 5.2 5.4 5.4 5.6 5.7 5.8BAL BALTRASN 0.98 8.0 8.1 8.3 8.4 8.5 8.7 8.8BAN BANDON 0.94 10.8 11.1 11.4 14.4 14.7 15.1 15.4BAR BARRYMOR 0.99 8.2 8.4 8.6 8.7 8.9 9.1 9.3BCM BALLYCUM 0.96 - - - 2.9 3.0 3.1 3.1BDA BARODA 0.96 2.0 2.0 2.0 2.0 2.0 2.0 2.0BDN BALLYDIN 0.95 5.6 5.7 5.8 5.8 5.9 6.0 6.0BEG BALLYBEG 0.98 3.5 3.6 3.7 3.7 3.8 3.9 4.0BIN BINBANE 0.95 6.9 7.1 7.3 7.4 4.6 4.7 4.8BK BELLACOR 0.97 1.6 1.6 1.7 1.7 1.7 1.8 1.8BLI BALLYLIC 0.99 3.0 3.1 3.2 3.2 3.3 3.4 3.5BLK BLAKE 0.98 8.1 8.3 4.8 4.9 5.0 5.1 5.2BOG BANOGE 0.95 - 4.4 4.5 4.6 4.7 4.8 4.9BRI BRINNY 0.95 4.2 4.2 4.2 4.2 4.2 4.2 4.2BRY BARNAHEL 0.97 24.4 25.0 25.7 26.0 26.6 27.2 27.9BUN BUNBEG 0.95 - - - - 4.4 4.5 4.6C-7

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-3 Demand Forecasts at Time of Summer Valley (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016BUT BUTLERST 0.98 11.2 11.5 11.8 11.9 12.2 12.5 12.8CAH CAHIR 0.96 8.0 8.1 8.3 8.4 8.6 8.8 9.0CBG CARROWBE 0.96 - 6.2 6.3 6.4 6.6 6.7 6.9CBR CASTLEBA 0.91 17.7 12.0 12.3 12.5 12.8 13.1 13.4CF CATH_FAL 0.95 4.8 4.9 5.1 5.1 5.3 5.4 5.5CFM CASTLEFA 0.95 44.0 44.0 44.0 44.0 44.0 44.0 44.0CHA CHARLEVI 0.95 6.1 6.2 6.4 6.4 6.6 6.8 6.9CLN CLOON 0.97 8.5 8.7 9.0 9.0 9.3 9.5 9.7CLW CARLOW 0.99 11.9 13.7 17.8 22.1 22.6 23.1 23.7COL COLLEGE 0.96 31.9 32.1 32.4 32.5 32.7 33.0 33.2COS CARICKON 0.99 8.3 8.5 8.7 8.8 9.0 9.2 9.5COW COW 0.99 9.2 9.4 9.7 9.8 10.0 10.3 10.5CRA CRANE 0.97 9.0 7.2 7.4 7.5 7.7 7.9 8.1CRO COOLROE 1.00 6.0 6.1 6.3 6.3 6.5 6.7 6.8CVW CASTLEVI 0.97 10.6 10.8 11.1 11.3 11.5 11.8 12.1DAL DALLOW 0.93 4.7 4.8 4.9 5.0 5.1 5.2 5.3DDK DUNDALK 0.99 7.8 8.0 8.2 8.3 8.5 8.7 8.9DFR DUNFIRTH 0.96 1.6 1.7 1.7 1.7 1.8 1.8 1.9DGN DUNGARVA 0.99 9.2 9.5 9.7 9.8 10.1 10.3 10.6DLT DALTON 0.98 7.0 7.1 7.3 7.4 7.6 7.8 8.0DMY DUNMANWA 0.97 10.4 10.7 11.0 9.8 10.0 10.3 10.5DOO DOON 0.99 8.9 9.1 9.3 9.4 9.7 9.9 10.1DRU DRUMLINE 0.98 11.4 11.7 19.1 19.2 19.5 19.8 20.1DRY DRYBRIDG 0.99 22.7 23.2 23.9 24.1 24.7 25.3 25.9ENN ENNIS 0.97 28.8 29.2 29.6 29.7 30.1 30.5 30.9GAL GALWAY 1.00 48.2 32.4 33.3 33.6 34.4 35.3 36.1GCA GRANGE 0.99 22.1 22.5 23.0 23.2 23.6 24.0 24.5GI GREAT 0.93 3.9 4.0 4.1 4.1 4.2 4.3 4.5GIL GILRA 0.95 11.9 11.9 11.9 11.9 11.9 11.9 11.9GLA GLASMORE 1.00 17.2 17.6 18.1 18.3 18.7 19.2 19.7GLE GLENLARA 0.90 3.8 3.9 4.0 4.0 4.1 4.2 4.3GRA GRANGE 0.96 17.4 17.8 18.3 18.5 18.9 19.4 19.9GRI GRIFFINR 0.98 14.1 14.5 14.9 15.0 15.4 15.8 16.1GWE GORTAWEE 0.95 19.7 19.8 19.9 19.9 20.0 20.1 20.1HTS HARNETTS 0.99 - 2.5 2.6 2.6 2.7 2.7 2.8IKE IKERRIN 0.94 7.0 7.2 7.4 7.4 7.6 7.8 8.0KBY KILBARRY 0.99 21.5 22.0 22.6 22.8 23.4 24.0 24.6KER KNOCKERA 1.00 12.6 13.0 13.3 13.4 13.8 14.1 14.5KIN KINNEGAD 0.95 4.0 4.0 4.0 4.0 4.0 4.0 4.0KKY KILKENNY 0.98 17.0 15.9 16.3 16.5 16.9 17.3 17.7KLM KILMORE 0.95 16.9 17.1 17.4 17.5 17.8 18.0 18.3KTL KILTEEL 0.91 10.1 10.3 10.6 10.7 11.0 11.3 11.5KTN KILLOTER 0.95 5.7 5.8 6.0 6.1 6.2 6.4 6.5C-8

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-3 Demand Forecasts at Time of Summer Valley (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016KUR KNOCKUMB 0.95 24.2 24.2 24.2 24.2 24.2 24.2 24.2LA LANESBOR 0.97 4.2 4.3 4.5 4.5 4.6 4.7 4.8LET LETTERKE 0.97 16.3 16.7 17.2 17.3 16.3 16.7 17.1LIB LIBERTY 0.97 5.6 5.7 5.9 5.9 6.1 6.2 6.4LIM LIMERICK 1.00 26.4 27.1 27.8 25.2 25.8 26.5 27.1LIS LISDRUM 0.95 8.3 8.5 8.7 8.8 9.0 9.2 9.5MAC MACROOM 0.98 5.9 3.6 3.7 2.1 2.2 2.2 2.3MAL MALLOW 0.96 6.2 6.4 6.6 6.6 6.8 6.9 7.1MCE MACETOWN 0.96 14.1 14.3 14.6 14.7 14.9 15.2 15.4MID MIDLETON 0.98 14.7 15.0 15.4 15.6 16.0 16.4 16.8MLN MULLAGHA 0.95 8.2 8.4 8.6 8.6 8.8 8.9 9.1MON MONREAD 0.97 4.3 4.4 4.5 4.5 4.7 4.8 4.9MOY MOY 0.99 8.2 8.4 8.7 8.7 9.0 9.2 9.4MR MARINA 0.97 7.0 7.2 7.4 7.4 7.6 7.8 8.0MTH MEATH 0.95 13.6 13.9 14.3 14.4 14.8 15.1 15.5MUL MULLINGA 0.98 11.0 11.3 11.6 11.7 12.0 12.3 12.6MUN MUNGRET 0.95 15.0 15.0 15.0 15.0 15.0 15.0 15.0NAN NANGOR 0.95 11.0 11.0 11.0 11.0 11.0 11.0 11.0NAV NAVAN 0.99 13.7 14.1 14.5 14.6 15.0 15.3 15.7NEN NENAGH 0.95 - 8.0 8.2 8.3 8.5 8.7 8.9NEW NEWBRIDG 0.99 11.3 11.6 11.9 12.0 12.3 12.6 12.9OLD OLDCOURT 0.94 0.3 0.3 0.3 0.3 0.3 0.3 0.3OUG OUGHTRAG 1.00 9.4 9.6 9.9 10.0 10.2 10.5 10.7PLA PLATIN 0.95 21.0 21.0 21.0 21.0 21.0 21.0 21.0PLS PORTLAOI 0.96 14.8 13.0 13.4 13.5 13.9 14.2 14.5RAT RATHKEAL 0.96 9.0 9.2 9.4 9.5 9.8 10.0 10.3RIC RICHMOND 0.99 9.4 9.6 9.9 10.0 10.2 10.5 10.7RNW RINAWADE 0.95 7.6 7.6 7.6 7.6 7.6 7.6 7.6RSY RINGASKI 0.95 1.0 1.0 1.1 1.1 1.1 1.1 1.1RYB RYEBROOK 0.95 65.0 65.0 65.0 65.0 65.0 65.0 65.0SAL SALTHILL 0.97 - 13.1 13.5 13.6 13.9 14.3 14.6SKL SHANKILL 0.96 16.2 16.6 17.0 17.2 17.6 18.0 18.5SLI SLIGO 0.99 14.9 15.3 15.7 15.9 16.3 16.7 17.1SNG SINGLAND 0.96 3.3 3.4 3.5 3.5 3.6 3.7 3.8SOM SOMERSET 0.98 7.7 7.9 8.1 8.1 8.3 8.6 8.8STR STRATFOR 1.00 2.3 2.3 2.4 2.4 2.5 2.5 2.6SVN STEVENST 0.95 3.6 3.6 3.7 3.8 3.9 4.0 4.1TBG TRABEG 0.99 22.7 23.2 23.9 24.1 24.7 25.3 25.9TBK TULLABRA 0.92 3.9 4.0 4.2 4.2 4.3 4.4 4.5THU THURLES 0.92 12.2 12.5 12.8 12.9 13.3 13.6 13.9TIP TIPPERAR 0.98 6.0 6.2 6.3 6.4 6.6 6.7 6.9TLK TRILLICK 0.94 3.7 3.8 3.9 3.9 4.0 4.1 4.2TON TONROE 0.95 6.1 6.3 6.4 6.5 6.7 6.8 7.0C-9

TRANSMISSION FORECAST STATEMENT 2010-2016Table C-3 Demand Forecasts at Time of Summer Valley (continued)BusCodeBus NamePowerDemand Forecast (MW)Factor 2010 2011 2012 2013 2014 2015 2016TRI TRIEN 0.98 8.8 9.0 9.3 9.4 9.6 9.8 10.1TRL TRALEE 0.99 13.8 14.1 14.5 14.6 15.0 15.4 15.7TSB THORNSBE 0.97 8.4 8.6 8.8 8.9 9.1 9.3 9.5WAT WATERFOR 0.95 12.9 13.3 13.6 13.8 14.1 14.4 14.8WEX WEXFORD 0.99 14.6 14.9 15.3 15.5 15.9 16.3 16.7WHI WHITEGAT 0.95 2.5 2.5 2.5 2.5 2.5 2.5 2.5TRI TRIEN 0.98 8.8 9.0 9.3 9.4 9.6 9.8 10.1TRL TRALEE 0.99 13.8 14.1 14.5 14.6 15.0 15.4 15.7TSB THORNSBE 0.97 8.4 8.6 8.8 8.9 9.1 9.3 9.5WAT WATERFOR 0.95 12.9 13.3 13.6 13.8 14.1 14.4 14.8WEX WEXFORD 0.99 14.6 14.9 15.3 15.5 15.9 16.3 16.7WHI WHITEGAT 0.95 2.5 2.5 2.5 2.5 2.5 2.5 2.5CKM Carrickmines 0.96 94.7 97.0 99.7 119.7 122.2 124.7 127.2FIN Finglas 0.96 100.4 102.7 105.3 106.3 108.7 111.2 113.8INC Inchicore 0.98 78.1 79.8 81.7 82.4 84.2 86.0 87.9PB Poolbeg 0.97 93.9 96.0 98.4 99.3 101.5 103.8 106.1TOTAL 1638 1666 1709 1745 1779 1813 1848C-10

APPENDIX DGENERATIONCAPACITY ANDDISPATCH DETAILSD.1 Generation Connected to the Transmission SystemD.2 Wind Generation Connected to the Distribution SystemD.3 Generation Dispatch Details

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX D GENERATION CAPACITY AND DISPATCH DETAILSD.1 GENERATION CONNECTED TO THE TRANSMISSION SYSTEMTable D-1 lists existing and committed future generation and the contracted maximumexport capacity (MEC) of each unit. Table D-2 presents the maximum continuous rating(MCR) of each unit at year end for each year up to 2016. All generation capacity figures inTable D-1 and Table D-2 are expressed in exported terms i.e., generation unit output lessthe unit’s own auxiliary load. The units are grouped in these tables on a geographicalbasis.D-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-1 Maximum Export Capacities of Existing and Committed Transmission-ConnectedGenerationArea Generation Station Unit ID Connected At Fuel TypeMaximum ExportCapacity (MW)Dublin Bay Power DB1 Irishtown 220 kV Gas 415.0Huntstown HNC Huntstown 220 kV Gas 352.0Huntstown HN2 Corduff 220 kV Gas 412.0North Wall NW4 North Wall 220 kV Gas/DO 163.0North Wall NW5 North Wall 220 kV Gas/DO 109.0DublinPoolbeg PB1 Poolbeg 220 kV Gas/HFO 109.5Poolbeg PB2 Poolbeg 220 kV Gas/HFO 109.5Poolbeg PBC Shellybanks 220 kV Gas/DO 460.0Turlough Hill TH1 Turlough Hill 220 kV Hydro 73.0Turlough Hill TH2 Turlough Hill 220 kV Hydro 73.0Turlough Hill TH3 Turlough Hill 220 kV Hydro 73.0Turlough Hill TH4 Turlough Hill 220 kV Hydro 73.0Dublin Area Total 2422.0Aghada AD1 Aghada 220 kV Gas 258.0Aghada AT1 Aghada 220 kV Gas/DO 90.0Aghada AT2 Aghada 220 kV Gas/DO 90.0Aghada AT4 Aghada 220 kV Gas/DO 90.0Aghada CCGT ADC Longpoint 220 kV Gas 431.0Athea - Athea 110 kV Wind 51.0Athea Extension - Athea 110 kV Wind 22.0Aughinish SK3 Sealrock 110 kV Gas 65.0Aughinish SK4 Sealrock 110 kV Gas 65.0Boggeragh - Boggeragh 110 kV Wind 57.0Clahane - Clahane 110 kV Wind 37.8Cloghboola - Knocknagashel 110 kV Wind 46.0South- Coomacheo - Garrow 110 kV Wind 41.2West Coomacheo Extension - Garrow 110 kV Wind 18.0Coomagearlahy - Coomagearlahy 110 kV Wind 42.5Coomagearlahy Extension - Coomagearlahy 110 kV Wind 38.5Dromada - Dromada 110 kV Wind 46.0Glanlee - Glanlee 110 kV Wind 29.8Glanlee Extension - Glanlee 110 kV Wind 6.0Knockacummer - Knockacummer 110 kV Wind 87.0Lee Hydro LE1 Inniscarra 110 kV Hydro 15.0Lee Hydro LE2 Inniscarra 111 kV Hydro 4.0Lee Hydro LE3 Carrigadrohid 110 kV Hydro 8.0Marina MRT Marina 110 kV Gas/DO 85.0Moneypoint MP2 Moneypoint 380 kV Coal 287.5Moneypoint - Moneypoint 110 kV Wind 21.9D-2

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-1 Maximum Export Capacities of Existing and Committed Transmission-ConnectedGeneration (continued)Area Generation Station Unit ID Connected At Fuel TypeMaximumExportCapacity (MW)Tarbert TB1 Tarbert 110 kV HFO 54.0South- Tarbert TB2 Tarbert 110 kV HFO 54.0West Tarbert TB3 Tarbert 220 kV HFO 240.7(Cont.) Tarbert TB4 Tarbert 220 kV HFO 240.7Whitegate CCGT WG Glanagow 220 kV Gas 445.0South-West Area Total 3067.6Ardnacrusha AA1,2,3,4 Ardnacrusha 110 kV Hydro 86.0Booltiagh - Booltiagh 110 kV Wind 19.5Booltiagh Extension - Booltiagh 110 kV Wind 12.0Mid-WestDerrybrien DBW Derrybrien 110 kV Wind 59.5Keelderry - Keelderry 110 kV Wind 29.75Moneypoint MP1 Moneypoint 400 kV Coal 287.5Moneypoint MP3 Moneypoint 400 kV Coal 287.5Tynagh TY Tynagh 220 kV Gas 404.0Mid-West Area Total 1185.8Ballywater BWW Ballywater 110 kV Wind 42.0Castledockrill - Castledockrill 110 kV Wind 41.4Great Island GI1 Great Island 110 kV HFO 54.0Great Island GI2 Great Island 110 kV HFO 54.0South-Great Island GI3 Great Island 220 kV HFO 108.0EastLiffey LI1 Pollaphuca 110 kV Hydro 15.0Liffey LI2 Pollaphuca 110 kV Hydro 15.0Liffey LI4 Pollaphuca 110 kV Hydro 4.0Nore Power NO1 Nore 110 kV Gas 98.0South-East Area Total 431.4Edenderry Power ED1 Cushaling 110 kV Peat 121.5Edenderry PCP ED3 Cushaling 110 kV Distillate 58.0Edenderry PCP ED5 Cushaling 110 kV Distillate 58.0Midlands Lisheen - Lisheen 110 kV Wind 55.0Rhode PCP RP1 Derryiron 110 kV Distillate 51.8Rhode PCP RP2 Derryiron 110 kV Distillate 51.8West Offaly Power WO4 Shannonbridge 110 kV Peat 141.0Midlands Area Total 537.1Erne ER3 Cathaleen’s Fall 110 kV Hydro 22.5Erne ER4 Cathaleen’s Fall 110 kV Hydro 22.5North-Erne ER1 Cliff 110 kV Hydro 10.0WestErne ER2 Cliff 110 kV Hydro 10.0Golagh GOL Golagh 110 kV Wind 15.0D-3

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-1 Maximum Export Capacities of Existing and Committed Transmission-ConnectedGeneration (continued)Area Generation Station Unit ID Connected At Fuel TypeMaximum ExportCapacity (MW)Garvagh - Garvagh 110 kV Wind 58.225North- Kingsmountain - Cunghill 110 kV Wind 34.8WestLough Ree Power LR4 Lanesboro 110 kV Peat 94.0(Cont.)Meentycat - Meentycat 110 kV Wind 84.96Mulreavy - Mulreavy 110 kV Wind 82.0North-West Area Total 434.0Ballakelly BY Ballakelly 220 kV Gas 445.0North-East Mountain Lodge - Ratrussan 110 kV Wind 30.6Bindoo - Ratrussan 110 kV Wind 70.0North-East Area Total 545.6Table D-2 Maximum Continuous Rating of Existing and Committed Transmission-ConnectedGenerationAreaGenerationStationUnit IDMaximum Continuous Rating (Exported MW)2010 2011 2012 2013 2014 2015 2016Dublin Bay Power DB1 403.0 403.0 403.0 403.0 403.0 403.0 403.0Huntstown HNC 343.0 343.0 343.0 343.0 343.0 343.0 343.0Huntstown HN2 400.0 400.0 400.0 400.0 400.0 400.0 400.0North Wall NW4 163.0 163.0 163.0 163.0 163.0 163.0 163.0North Wall NW5 109.0 109.0 109.0 109.0 109.0 109.0 109.0DublinPoolbeg PB1 109.5 - - - - - -Poolbeg PB2 109.5 - - - - - -Poolbeg PBC 460.0 460.0 460.0 460.0 460.0 460.0 460.0Turlough Hill TH1 73.0 73.0 73.0 73.0 73.0 73.0 73.0Turlough Hill TH2 73.0 73.0 73.0 73.0 73.0 73.0 73.0Turlough Hill TH3 73.0 73.0 73.0 73.0 73.0 73.0 73.0Turlough Hill TH4 73.0 73.0 73.0 73.0 73.0 73.0 73.0Dublin Area Total 2389.0 2170.0 2170.0 2170.0 2170.0 2170.0 2170.0Aghada AD1 258.0 258.0 258.0 258.0 258.0 258.0 258.0Aghada AT1 90.0 90.0 90.0 90.0 90.0 90.0 90.0Aghada AT2 90.0 90.0 90.0 90.0 90.0 90.0 90.0Aghada AT4 90.0 90.0 90.0 90.0 90.0 90.0 90.0Aghada CCGT ADC 430.0 430.0 430.0 430.0 430.0 430.0 430.0Athea - 51.0 51.0 51.0 51.0 51.0 51.0 51.0South-WestAthea Extension - 22.0 22.0 22.0 22.0 22.0 22.0 22.0Aughinish SK3 80.4 80.4 80.4 80.4 80.4 80.4 80.4Aughinish SK4 80.4 80.4 80.4 80.4 80.4 80.4 80.4Boggeragh - 57.0 57.0 57.0 57.0 57.0 57.0 57.0Clahane - 37.8 37.8 37.8 37.8 37.8 37.8 37.8Cloghboola - - - - - 46.0 46.0 46.0Coomacheo - 41.225 41.225 41.225 41.225 41.225 41.225 41.225Coomacheo Ext. - 18.0 18.0 18.0 18.0 18.0 18.0 18.0D-4

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-2 Maximum Continuous Rating of Existing and Committed Transmission-ConnectedGeneration (continued)Area Generation Station Unit IDMaximum Continuous Rating (Exported MW)2010 2011 2012 2013 2014 2015 2016Coomagearlahy - 42.5 42.5 42.5 42.5 42.5 42.5 42.5Coomagearlahy Extension - 38.5 38.5 38.5 38.5 38.5 38.5 38.5Dromada - 46.0 46.0 46.0 46.0 46.0 46.0 46.0Glanlee - 29.8 29.8 29.8 29.8 29.8 29.8 29.8Glanlee Extension - 6.0 6.0 6.0 6.0 6.0 6.0 6.0Knockacummer - 87.0 87.0 87.0 87.0 87.0 87.0 87.0Lee Hydro LE1 15.0 15.0 15.0 15.0 15.0 15.0 15.0South- Lee Hydro LE2 4.0 4.0 4.0 4.0 4.0 4.0 4.0West Lee Hydro LE3 8.0 8.0 8.0 8.0 8.0 8.0 8.0(Cont.) Marina MRT 85.0 85.0 85.0 85.0 85.0 85.0 85.0Moneypoint MP2 281.5 281.5 281.5 281.5 281.5 281.5 281.5Moneypoint 1 - - - - - - - -Tarbert TB1 54.0 54.0 54.0 54.0 54.0 54.0 54.0Tarbert TB2 54.0 54.0 54.0 54.0 54.0 54.0 54.0Tarbert TB3 240.7 240.7 240.7 240.7 240.7 240.7 240.7Tarbert TB4 240.7 240.7 240.7 240.7 240.7 240.7 240.7Whitegate CCGT WG 440.6 440.6 440.6 440.6 440.6 440.6 440.6South-West Area Total 3019.1 3019.1 3019.1 3019.1 3065.1 3065.1 3065.1Ardnacrusha AA1,2,3,4 86.0 86.0 86.0 86.0 86.0 86.0 86.0Booltiagh - 19.5 19.5 19.5 19.5 19.5 19.5 19.5Booltiagh Extension - 12.0 12.0 12.0 12.0 12.0 12.0 12.0Mid-WestDerrybrien - 59.5 59.5 59.5 59.5 59.5 59.5 59.5Keelderry - 29.8 29.8 29.8 29.8 29.8 29.8 29.8Moneypoint MP1 281.5 281.5 281.5 281.5 281.5 281.5 281.5Moneypoint MP3 281.5 281.5 281.5 281.5 281.5 281.5 281.5Tynagh TY 382.0 382.0 382.0 382.0 382.0 382.0 382.0Mid-West Area Total 1151.8 1151.8 1151.8 1151.8 1151.8 1151.8 1151.8Ballywater BWW 42.0 42.0 42.0 42.0 42.0 42.0 42.0Castledockrill - 41.4 41.4 41.4 41.4 41.4 41.4 41.4Great Island GI1 54.0 54.0 54.0 54.0 54.0 54.0 54.0Great Island GI2 54.0 54.0 54.0 54.0 54.0 54.0 54.0South-Great Island GI3 108.0 108.0 108.0 108.0 108.0 108.0 108.0EastLiffey LI1 15.0 15.0 15.0 15.0 15.0 15.0 15.0Liffey LI2 15.0 15.0 15.0 15.0 15.0 15.0 15.0Liffey LI4 4.0 4.0 4.0 4.0 4.0 4.0 4.0Nore Power NO1 - 98.0 98.0 98.0 98.0 98.0 98.0South-East Area Total 333.4 431.4 431.4 431.4 431.4 431.4 431.4Edenderry Power ED1 118.3 118.3 118.3 118.3 118.3 118.3 118.3Edenderry PCP ED3 58.0 58.0 58.0 58.0 58.0 58.0 58.0Edenderry PCP ED5 58.0 58.0 58.0 58.0 58.0 58.0 58.0Midlands Lisheen - 55.0 55.0 55.0 55.0 55.0 55.0 55.0Rhode PCP RP1 51.8 51.8 51.8 51.8 51.8 51.8 51.8Rhode PCP RP2 51.8 51.8 51.8 51.8 51.8 51.8 51.8West Offaly Power WO4 137.0 137.0 137.0 137.0 137.0 137.0 137.0Midlands Area Total 529.9 529.9 529.9 529.9 529.9 529.9 529.91 There is currently no set date for the connection of Moneypoint wind farm.D-5

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-2 Maximum Continuous Rating of Existing and Committed Transmission-ConnectedGeneration (continued)Area Generation Station Unit IDMaximum Continuous Rating (Exported MW)2010 2011 2012 2013 2014 2015 2016Erne ER3 22.5 22.5 22.5 22.5 22.5 22.5 22.5Erne ER4 22.5 22.5 22.5 22.5 22.5 22.5 22.5Erne ER1 10.0 10.0 10.0 10.0 10.0 10.0 10.0Erne ER2 10.0 10.0 10.0 10.0 10.0 10.0 10.0North-WestGolagh - 15.0 15.0 15.0 15.0 15.0 15.0 15.0Garvagh - 58.2 58.2 58.2 58.2 58.2 58.2 58.2Kingsmountain - 34.8 34.8 34.8 34.8 34.8 34.8 34.8Lough Ree Power LR4 91.0 91.0 91.0 91.0 91.0 91.0 91.0Meentycat - 85.0 85.0 85.0 85.0 85.0 85.0 85.0Mulreavy - - - - 82.0 82.0 82.0 82.0North-West Area Total 349.0 349.0 349.0 431.0 431.0 431.0 431.0Ballakelly BY - - 445.0 445.0 445.0 445.0 445.0North-East Mountain Lodge MLW 30.6 30.6 30.6 30.6 30.6 30.6 30.6Bindoo RRW 70.0 70.0 70.0 70.0 70.0 70.0 70.0North-East Area Total 100.6 100.6 545.6 545.6 545.6 545.6 545.6Total 7872.7 7751.7 8196.7 8278.7 8324.7 8324.7 8324.7D.2 WIND GENERATION CONNECTED TO THE DISTRIBUTION SYSTEMTable D-3 lists the total capacity of wind generation that currently feeds into each 110 kVtransmission station, from the distribution system. Table D-3 also shows the capacity offuture wind generation up to 2016, based on the wind farms that currently have signedconnection agreements with the DSO (as at the beginning of July 2009).Table D-3 Existing and Committed Distribution-Connected Wind Farm CapacityArea110 kVStationWind Farm Capacity (MW)2009 2010 2011 2012 2013 2014 2015 2016Ballylickey 28.1 36.5 36.5 36.5 36.5 36.5 36.5 38.5Bandon 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5Boggeragh - 44.0 44.0 44.0 44.0 44.0 44.0 44.0Charleville 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Cordal - - - - - 94.0 94.0 94.0South-WestDungarvan 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7Dunmanway 45.3 45.3 45.3 45.3 45.3 45.3 45.3 45.3Garrow - 15.0 15.0 15.0 15.0 15.0 15.0 15.0Glenlara 36.5 36.5 36.5 36.5 36.5 36.5 36.5 59.0Hartnett's Cross - 9.0 9.0 9.0 9.0 9.0 9.0 9.0Kilbarry - 0.9 0.9 0.9 0.9 0.9 0.9 0.9Knockearagh 13.9 13.9 13.9 13.9 13.9 13.9 13.9 13.9Knocknagashel - - - - - 32.6 32.6 32.6D-6

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-3 Existing and Committed Distribution-Connected Wind Farm Capacity (continued)Area110 kVStationWind Farm Capacity (MW)2009 2010 2011 2012 2013 2014 2015 2016South-West(Cont.)Macroom 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0Midleton 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7Muingnaminnane - - - - - - - 42.4Oughteragh - 9.0 9.0 9.0 9.0 9.0 9.0 9.0Rathkeale 12.5 32.5 32.5 32.5 32.5 32.5 32.5 32.5Tralee 62.9 64.6 64.6 64.6 64.6 64.6 64.6 64.6Trien 51.4 53.1 53.1 53.1 53.1 53.1 53.1 53.1South-West Area Total 276.4 386.0 386.0 386.0 386.0 512.5 512.5 579.4Mid-WestArdnacrusha 10.9 10.9 10.9 10.9 10.9 10.9 10.9 10.9Ennis - 24.0 24.0 24.0 24.0 24.0 24.0 24.0Galway 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6Nenagh - 6.5 6.5 6.5 6.5 6.5 6.5 6.5Somerset 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7Tullabrack 12.6 12.6 12.6 12.6 12.6 12.6 12.6 12.6Mid-West Area Total 35.8 66.2 66.2 66.2 66.2 66.2 66.2 66.2South-EastArklow 25.2 25.2 25.2 25.2 25.2 25.2 25.2 25.2Butlerstown 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7Carlow 34.7 34.7 34.7 34.7 34.7 34.7 34.7 34.7Crane 4.9 7.4 7.4 7.4 7.4 7.4 7.4 7.4Great Island 4.3 4.3 10.3 10.3 10.3 10.3 10.3 10.3Lodgewood - 27.5 45.9 45.9 45.9 45.9 45.9 45.9Wexford 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9South-East Area Total 109.7 139.6 164.0 164.0 164.0 164.0 164.0 164.0MidlandsAthlone - 4.3 4.3 4.3 4.3 4.3 4.3 4.3Cauteen - - - 25.0 25.0 95.0 95.0 95.0Dallow 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8Ikerrin 5.1 6.0 8.5 8.5 8.5 8.5 8.5 8.5Lanesboro 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0Midlands Area Total 16.9 22.0 24.5 49.5 49.5 119.5 119.5 119.5North-WestArigna 16.4 16.4 16.4 16.4 16.4 16.4 16.4 16.4Bellacorick 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5Binbane 46.3 46.3 46.3 46.3 46.3 46.3 46.3 46.3Castlebar 24.2 43.8 43.8 43.8 43.8 43.8 43.8 43.8Cathaleen's Fall 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4Corderry 32.1 41.1 41.1 41.1 41.1 41.1 41.1 41.1Dalton 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6Glenree - - 62.2 62.2 62.2 62.2 62.2 62.2Letterkenny 41.9 45.3 45.3 45.3 45.3 45.3 45.3 45.3Moy 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0Mulreavy - 3.6 7.9 7.9 7.9 7.9 7.9 7.9D-7

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-3 Existing and Committed Distribution-Connected Wind Farm Capacity (continued)Area110 kVStationWind Farm Capacity (MW)2009 2010 2011 2012 2013 2014 2015 2016North- Sorne Hill 61.2 61.2 61.2 61.2 61.2 61.2 61.2 61.2West Tonroe 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5(Cont.) Trillick 23.8 34.0 34.0 34.0 34.0 34.0 34.0 34.0North-West Area Total 275.7 321.5 387.9 387.9 387.9 387.9 387.9 387.9Drybridge 4.2 4.2 4.2 4.2 4.2 4.2 4.2 4.2North-EastDundalk 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0Meath Hill 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0Navan 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0Shankill 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0North-East Area Total 38.2 38.2 38.2 38.2 38.2 38.2 38.2 38.2Totals 752.6 973.5 1066.9 1091.9 1091.9 1288.4 1288.4 1355.3Figure D-1 displays the geographical location of all existing and planned wind farms and thetotal at each 110 kV station they feed into. MW capacities shaded red correspond to existingwind farms and blue correspond to committed wind farms.Since the July 2009, three new conventional generation plants, Cuilleen 98.4 MW OCGTplant at Athlone, Co. Westmeath, Suir 98 MW OCGT plant at Cahir, Co. Tipperary andCaulstown 58 MW OCGT Peaking Plant at Caulstown, Co. Louth as well as one 70 MW pumpedstorage plant at Knocknagreenan, Co. Cork, have signed non-firm connection agreements.As indicated in the proposed direction published by the CER entitled “Proposed Direction onConventional Offer Issuance Criteria” (Reference: CER/09/114), it is expected that the firmaccess dates for these plants will be determined as part of the Gate 3 group processingscheme for generators.D-8

TRANSMISSION FORECAST STATEMENT 2010-2016Figure D-1 Geographical Location of Existing and Planned Wind Farms at July 01 st 2009D-9

TRANSMISSION FORECAST STATEMENT 2010-2016D.3 GENERATION DISPATCH DETAILSTable D-4 lists the generation dispatch profiles used for the purposes of the TFS 2010-2016short circuit analyses and demand opportunity analysis.The SV column represents the dispatch at summer valley and WP denotes the winter peakdispatch. Wind farms were dispatched at 35% of their rated capacity, which equatesapproximately to their average expected output. The values shown are in exported termsi.e., they are net of each generation unit's own consumption. They indicate the powerdelivered to the grid.In all instances, except the dispatch profiles used for the winter peak short circuit studies,a dispatch of 0 MW indicats that the unit is not synchronised to the system and iseffectively off. For the calculations of short circuit currents at winter peaks, all generatorsnot dispatched are modelled as synchronised to the system and dispatched at zero MW.It should be noted that station demand projections are developed from the system demandforecasts on a top-down basis, using a forecast of transmission losses. The transmissionloss figures calculated by the network models used in this TFS may differ from the forecastfigures and hence the dispatch totals may differ from the system demand forecasts in Table3-1 in Chapter 3.D-10

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-4 Dispatch Profiles - Short Circuit and Demand Opportunity AnalysesArea Generation Station Unit ID2010 2013 2016SV SP WP SV SP WP SV SP WPDublin Bay Power DB1 163 280 300 180 280 410 150 340 400Huntstown HN1 0 200 300 160 0 280 0 150 350Huntstown HN2 257 260 300 0 310 380 0 360 380North Wall NW4 0 0 0 0 0 0 0 0 0North Wall NW5 0 0 0 0 0 0 0 0 0Poolbeg PBC 0 75 240 0 0 0 0 0 0Turlough Hill TH1,2,3,4 -210 14 17 -210 61 56 -210 4 46Embedded Hydro - 0 0 0 0 0 4 0 0 4Dublin Area Total 210 829 1157 130 651 1130 -60 854 1180Aghada AD1 0 0 0 0 0 0 0 0 0Aghada AT1 0 0 0 0 0 0 0 0 0Aghada AT2 0 0 0 0 0 0 0 0 0Aghada AT4 0 0 0 0 0 0 0 0 0Aghada CCGT ADC 0 280 400 250 380 420 260 390 430Athea - 18 18 18 18 18 18 18 18 18Athea Extension - 8 8 8 8 8 8 8 8 8Aughinish SK3 81 81 81 81 81 81 81 81 81Aughinish SK4 81 81 81 81 81 81 81 81 81Boggeragh - 20 20 20 20 20 20 20 20 20Clahane - 13 13 13 13 13 13 13 13 13Cloghboola - - - - - - - 16 16 16Coomacheo - 14 14 14 14 14 14 14 14 14CoomacheoExtension- 6 6 6 6 6 6 6 6 6Coomagearlahy - 15 15 15 15 15 15 15 15 15CoomagearlahyExtension- 13 13 13 13 13 13 13 13 13Dromada - 16 16 16 16 16 16 16 16 16Glanlee - 10 10 10 10 10 10 10 10 10Glanlee Extension - 2 2 2 2 2 2 2 2 2Knockacummer - 30 30 30 30 30 30 30 30 30Lee Hydro LE1,2 0 0 4 0 0 4 0 0 15Lee Hydro LE3 0 0 8 0 0 8 0 0 8Marina MRT 0 0 0 0 0 0 0 0 0Moneypoint MP2 0 260 280 0 240 290 0 240 260Moneypoint - - - - - - - - - -Tarbert TB1 0 30 0 0 0 0 0 0 40Tarbert TB2 0 30 0 0 0 0 0 0 0Tarbert TB3 0 150 200 0 0 200 0 0 240Tarbert TB4 0 0 240 0 0 0 0 0 240Whitegate CCGT WG 100 280 200 300 380 420 330 390 430Embedded Wind - 111 111 135 135 135 135 179 179 203South-West Area Total 541 1471 1797 1015 1465 1807 1115 1545 2212DublinSouth-WestD-11

TRANSMISSION FORECAST STATEMENT 2010-2016Table D-4 Dispatch Profiles - Short Circuit and Demand Opportunity Analyses (continued)Area Generation Station Unit IDMid-West2010 2013 2016SV SP WP SV SP WP SV SP WPArdnacrusha AA1,2,3,4 0 0 86 0 0 86 0 0 86Booltiagh - 7 7 7 7 7 7 7 7 7BooltiaghExtension- 4 4 4 4 4 4 4 4 4Derrybrien - 21 21 21 21 21 21 21 21 21Keelderry - 10 10 10 10 10 10 10 10 10Moneypoint MP1 19 260 280 35 240 290 31 240 260Moneypoint MP3 0 260 280 0 240 290 0 240 260Tynagh TY 0 295 280 0 0 155 0 0 0Embedded Wind - 13 13 23 23 23 23 23 23 23Mid-West Area Total 73 870 991 100 545 886 97 545 671South-EastBallywater - 15 15 15 15 15 15 15 15 15Castledockrill - - - 14 14 14 14 14 14 14Great Island GI1 0 0 0 0 0 0 0 0 0Great Island GI2 0 0 0 0 0 0 0 0 0Great Island GI3 0 0 0 0 0 0 0 0 0Liffey Hydro LI1,2,4 0 0 34 0 0 34 0 0 34Nore Power NO1 - - - 0 0 50 0 0 70Embedded Wind - 39 39 49 57 57 57 57 57 57South-East Area Total 54 54 112 87 87 171 87 87 191MidlandsEdenderry Power ED1 130 130 0 130 130 130 130 130 130Edenderry PCP ED3, ED5 0 0 0 0 0 0 0 0 0Lisheen - 19 19 19 19 19 19 19 19 19Rhode PCP RP1, RP2 0 0 0 0 0 0 0 0 0West Offaly Power WO4 150 150 150 150 150 150 150 150 150Embedded Wind - 8 8 8 17 17 17 42 42 42Midlands Area Total 307 307 177 317 317 317 341 341 341North-WestErne ER3,4 0 0 45 0 0 45 0 0 45Erne ER1,2 0 0 20 0 0 20 0 0 20Golagh - 5 5 5 5 5 5 5 5 5Garvagh - 20 20 20 20 20 20 20 20 20Kingsmountain - 12 12 12 12 12 12 12 12 12Lough Ree Power LR4 100 100 100 100 100 100 100 100 100Meentycat - 30 30 30 30 30 30 30 30 30Mulreavy - - - - 29 29 29 29 29 29Embedded Wind - 113 113 113 136 136 136 136 136 136North-West Area Total 280 280 345 332 332 397 332 332 397North-EastNI Import - 222 -14 137 -150 -52 -445 -188 -229 -438Ballakelly BY - - - 0 260 350 225 370 380Mountain Lodge - 11 11 11 11 11 11 11 11 11Bindoo - 25 25 25 25 25 25 25 25 25Embedded Wind - 13 13 13 13 13 13 13 13 13North-East Area Total 271 35 186 -101 257 -46 86 190 -9East-West Interconnector Import - - - 0 400 400 0 400 400Totals 1736 3845 4765 1879 4053 5061 1997 4294 5382D-12

APPENDIX Eshort circuitcurrentsE.1 BackgroundE.2 AnalysisE.3 Results

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX ESHORT CIRCUIT CURRENTSE.1 BACKGROUNDShort circuit current levels are calculated in accordance with the UK EngineeringRecommendation G74, which is a computer based analysis based on the InternationalStandard IEC60909.The plot in Figure E-1 shows a typical short circuit current. Short circuit current is made upof an AC component with a slow decay rate, and a DC component illustrated by the greenline with a much faster decay rate.Current [kA]Peak make currentTotal RMS breakcurrentFault occursat time t 0Time between fault and circuitbreaker contacts starting toseparateTime for circuitbreaker to clearfaultTime (ms)Figure E-1 Typical Short Circuit CurrentThe DC component of a short circuit current decays exponentially. Its rate of decay isinfluenced by the ratio of the reactance (X) to the resistance (R) of the paths back to thegenerators feeding power to the fault (the X/R ratio).The reactance component becomes less dominant further out on the grid away from majorgeneration infeeds. Consequently the X/R ratio decreases and the rate of decay of the DCcomponent is much faster. The faster decaying DC component results in a smaller offsetapplied to the total root mean square (RMS) break current.The short circuit current that a circuit breaker is expected to interrupt during a fault is theRMS of AC current offset by a DC current and is referred to as the total RMS break current.The fault breaking current rating is limited by the thermal energy that the circuit breakercan dissipate during the time the contacts take to separate. The peak make current ishigher than the break current and is the most onerous condition that a circuit breaker canbe exposed to. This will occur when a circuit breaker is closed onto an earthed item ofequipment e.g. bus bar, transmission line, transformer etc. At this instant in time, the DCvalue is close to its maximum so that the total current (AC + DC) is at its peak. CircuitE-1

TRANSMISSION FORECAST STATEMENT 2010-2016breakers are typically rated approximately 2.5 times higher for peak make than for breakcurrents. In general, peak make currents are of concern at stations close to majorgeneration infeeds.The transmission system is designed and operated to maintain RMS break short circuitlevels in accordance with Grid Code CC.8.6. A summary of these requirements is set out inTable E-1. In designing the system, a 10% safety margin is applied.It should be noted that Grid Code Version 3.1 (released in May 2008) contains amodification which stipulates that fault levels at designated stations may be allowed toincrease to 31.5 kA. If necessary, the equipment at these stations is to be modified orreplaced in order to comply with this new rating. The stations currently designated foroperation of the 110 kV equipment up to 31.5 kA, as proposed by the TSO, are; Barnahely,College Park, Corduff, Finglas, Kilbarry, Knockraha, Louth, Marina, Raffeen and Trabeg. TheTSO will annually publish an updated list of designated stations.Table E-1 Short Circuit Current Levels - Standard Equipment RatingVoltage LevelStandard Equipment Short CircuitCurrent Rating400 kV 50 kA220 kV 40 kA110 kVWithin the Dublin AreaOutside the Dublin AreaDesignated sites26 kA25 kA31.5 kARecent connections of additional generation to the grid have raised concerns about thepeak-make levels in some areas. Peak-make values are therefore included for completeness.E.2 ANALYSISThe generation dispatches used in the short circuit analysis are shown in Table D-4 inAppendix D. In the case of the winter peak studies, however, all generators that were notoriginally dispatched as in Table D-4 were switched in and dispatched at outputs of 0 MWand 0 Mvar.The demand at each transmission interface station is assumed to contribute 1 MVA ofinduction motor fault infeed per MW of load. An X/R ratio of 2.76 is assumed for theseloads, in accordance with the Engineering Recommendation G74.The total RMS break current depends upon the circuit breaker break time i.e., the time ittakes for the protection to operate and for the circuit breaker contacts to fully separate. Acircuit breaker break time of 50 ms was assumed for the circuit breakers located at the220 kV stations and a break time of 80 ms was applied to the 110 kV stations. These breakE-2

TRANSMISSION FORECAST STATEMENT 2010-2016times are deemed to be appropriate in the case of the majority of circuit breakers on thenetwork.The total RMS break current at a busbar is an indication of the short circuit level that onecould expect at that point in the network. However, they do not necessarily represent theshort circuit current that could flow through each individual breaker, which may be lower.E.3 RESULTSTables E-2 to E-4 list total RMS break currents, peak make currents and X/R ratios forsingle-phase to earth and balanced three-phase faults for grid busbars. These arepresented for maximum winter peak and minimum summer valley system demand conditionsfor 2010, 2013 and 2016.Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Adamstown 110 kV 13.6 29.8 11.7 6.8 33.0 14.0 9.5 28.6 11.2 5.8 30.8 13.3Agannygal 110 kV 3.0 11.8 5.4 4.3 9.9 4.5 3.1 10.9 4.7 4.4 9.4 4.2Aghada 110 kV 4.5 20.5 9.1 5.6 24.4 10.7 4.8 16.4 7.0 5.7 20.0 8.6Aghada A 220 kV 10.6 19.4 7.7 12.5 20.5 8.5 8.8 9.4 3.7 9.8 11.7 4.8Aghada B 220 kV 17.4 31.2 12.8 17.7 36.4 15.6 13.1 19.4 7.6 13.4 24.4 10.0Aghada C 220 kV 17.4 31.2 12.8 17.7 36.4 15.6 13.1 19.4 7.6 13.4 24.4 10.0Aghada D 220 kV 12.1 21.8 8.7 14.0 22.9 9.6 8.8 9.4 3.7 9.7 12.0 4.9Ahane 110 kV 4.5 27.8 12.3 5.3 24.1 10.7 4.6 19.9 8.4 5.4 18.5 8.0Anner 110 kV 2.7 11.3 5.9 4.0 7.6 3.6 2.9 9.9 5.0 4.0 7.2 3.4Ardnacrusha 110 kV 5.4 34.2 14.4 6.6 35.9 15.2 4.9 22.4 9.2 5.8 26.4 11.2Arigna 110 kV 3.9 14.9 6.3 5.1 11.1 4.9 3.9 13.5 5.5 5.1 10.3 4.4Arklow 110 kV 8.3 20.9 8.1 9.2 25.5 10.2 9.2 18.0 6.8 10.0 22.2 8.7Arklow 220 kV 9.1 19.2 7.7 10.3 18.0 7.5 8.9 15.0 6.0 10.1 14.5 6.0Arva 110 kV 3.1 17.5 8.3 4.3 13.3 6.1 3.2 16.3 7.4 4.3 12.4 5.7Athea 110 kV 6.6 17.9 6.2 8.6 15.4 6.0 7.3 16.0 5.0 9.2 14.6 5.4Athlone 110 kV 3.5 15.6 7.4 4.7 10.1 4.6 3.6 14.6 6.8 4.7 9.8 4.4Athy 110 kV 3.1 12.2 6.1 4.3 9.8 4.6 3.1 9.5 4.7 4.3 7.9 3.7Aughinish 110 kV 7.7 24.0 9.5 9.8 26.4 10.5 8.1 20.8 7.9 10.0 24.2 9.5Ballybeg 110 kV 8.9 15.8 6.3 9.3 18.7 7.6 9.3 14.1 5.5 9.6 16.9 6.8Ballydine 110 kV 2.9 13.1 6.7 4.2 10.1 4.7 3.1 11.3 5.5 4.2 9.2 4.3Ballylickey 110 kV 2.7 5.7 2.9 4.0 3.9 1.8 2.8 5.3 2.5 4.0 3.6 1.7Ballywater 110 kV 4.4 12.9 5.5 3.1 11.8 5.8 3.6 7.4 3.4 3.6 7.9 3.8Baltrasna 110 kV 6.1 23.5 10.0 7.3 18.8 7.9 6.3 20.7 8.7 7.4 17.2 7.2Bandon 110 kV 3.0 12.2 6.0 4.4 10.7 5.0 3.2 11.0 5.1 4.4 10.1 4.6E-3

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 (continued)BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Banoge 110 kV 3.6 12.7 5.8 4.6 11.3 5.1 - - - - - -Barnahely A 110 kV 4.3 27.2 12.1 5.1 28.3 12.6 6.3 28.0 10.9 6.6 32.9 13.5Barnahely B 110 kV 6.1 28.4 11.7 6.9 28.8 12.1 - - - - - -Baroda 110 kV 4.0 18.0 8.4 4.9 21.1 9.5 4.2 15.1 6.8 5.0 18.4 8.2Barrymore 110 kV 3.5 16.2 7.8 4.8 9.9 4.5 3.7 13.1 6.0 4.8 8.7 3.9Bellacorick 110 kV 3.1 7.9 3.7 4.2 8.1 3.8 2.7 6.1 2.9 3.6 6.8 3.2Binbane 110 kV 3.2 6.9 2.9 4.7 6.9 3.0 3.2 6.2 2.5 4.6 6.5 2.8Blake 110 kV 3.9 16.8 7.9 5.0 12.0 5.4 4.1 14.5 6.6 5.1 11.0 4.9Boggeragh 110 kV 7.0 19.0 7.5 7.6 11.8 4.9 6.9 15.3 5.8 7.5 10.4 4.3Booltiagh 110 kV 3.1 8.6 4.2 4.4 8.0 3.7 3.2 7.8 3.8 4.5 7.7 3.5Brinny A 110 kV 2.9 10.9 5.4 4.2 9.1 4.3 3.1 9.9 4.7 4.3 8.6 3.9Brinny B 110 kV 2.9 10.9 5.4 4.2 9.2 4.3 3.0 9.9 4.7 4.3 8.6 4.0Butlerstown 110 kV 4.4 22.6 10.0 4.7 21.8 9.9 4.4 16.8 7.4 4.6 17.6 8.0Cahir 110 kV 2.9 14.7 7.4 4.2 9.4 4.4 3.1 12.9 6.3 4.3 9.2 4.3Carrick-on-Shannon 110 kV 4.1 24.7 10.6 5.0 27.0 11.9 4.3 22.2 9.1 5.1 24.5 10.5Carlow 110 kV 5.4 19.6 8.5 6.1 19.7 8.5 5.3 16.5 7.1 6.0 17.4 7.5Carrickmines B 110 kV 23.3 35.7 14.4 20.3 38.4 15.5 20.4 29.4 11.5 18.0 32.9 13.1Carrickmines 220 kV 15.0 48.4 19.7 10.3 54.8 22.4 13.3 33.5 13.3 9.6 40.1 16.3Carrigadrohid 110 kV 4.7 29.5 12.4 5.7 24.7 10.6 5.1 22.6 8.8 5.9 20.8 8.7Carrowbeg 110 kV 2.7 5.8 2.9 4.0 5.5 2.6 - - - - - -Cashla 110 kV 6.2 36.4 15.1 7.1 45.4 19.0 5.9 28.3 11.4 6.6 36.4 15.1Cashla 220 kV 7.7 26.4 10.8 9.9 26.2 10.9 7.5 18.2 7.3 9.2 20.0 8.2Castlebar 110 kV 3.2 10.3 4.8 4.6 9.7 4.4 3.2 8.9 4.1 4.5 8.2 3.7Castledockrill 110 kV 7.0 19.9 7.3 4.6 21.5 9.3 - - - - - -Castlefarm A 110 kV 7.0 22.8 9.1 8.6 24.2 9.8 7.4 19.9 7.6 8.8 22.3 8.9Castlefarm B 110 kV 7.0 22.8 9.1 8.6 24.2 9.8 7.4 19.8 7.6 8.8 22.2 8.8Castleview 110 kV 3.7 27.3 12.7 4.5 20.4 9.4 4.1 20.5 8.9 4.7 16.7 7.5Cathaleen's Fall 110 kV 4.3 19.4 7.3 5.3 19.0 7.9 3.7 14.7 5.5 4.6 16.1 6.7Charleville 110 kV 3.7 14.1 6.3 5.1 9.8 4.4 3.3 11.6 5.2 4.6 8.7 3.9Clahane 110 kV 4.4 20.4 7.8 5.9 17.8 7.4 4.8 16.8 5.7 6.2 15.6 6.2Clashavoon A 110 kV 7.0 36.0 13.7 8.6 34.9 13.9 7.1 26.6 9.4 8.5 27.9 10.8Clashavoon B 110 kV 7.0 36.0 13.7 8.6 34.9 13.9 7.1 26.6 9.4 8.5 27.9 10.8Clashavoon 220 kV 9.0 21.5 8.6 10.6 20.5 8.5 9.3 14.0 5.3 10.5 15.0 6.1Cliff 110 kV 4.2 15.1 6.0 5.1 13.7 5.9 3.6 11.6 4.6 4.5 11.9 5.1Clonkeen A 110 kV 6.5 19.5 6.4 6.8 19.3 7.5 6.6 17.1 5.0 6.9 17.7 6.5Cloon 110 kV 4.4 16.5 7.5 5.5 11.7 5.2 3.2 12.9 6.1 4.2 9.3 4.3TotRMSBreak[kA]College Park 110 kV 8.7 43.9 17.5 6.7 46.6 19.8 8.5 35.1 13.8 6.9 39.1 16.4E-4

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 (continued)BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Coolroe 110 kV 3.3 21.1 9.9 4.6 20.0 9.1 3.5 16.2 7.2 4.6 16.8 7.5Coomagearlahy 110 kV 6.9 16.6 5.2 7.8 17.8 6.6 7.1 15.0 4.3 7.9 16.7 5.9Corderry 110 kV 4.0 16.1 6.3 5.6 14.8 6.2 4.1 14.4 5.4 5.5 13.6 5.6Corduff A 110 kV 10.0 51.4 20.1 11.4 57.4 22.8 9.4 40.0 15.5 10.8 46.8 18.6Corduff B 110 kV 10.0 51.4 20.1 11.4 57.4 22.8 9.4 40.0 15.5 10.8 46.8 18.6Corduff 220 kV 16.7 61.8 25.3 15.7 70.2 29.7 13.3 35.0 14.0 13.7 44.5 18.6Corraclassy 110 kV 3.7 13.2 5.9 4.9 10.7 4.8 3.7 12.5 5.4 5.0 10.2 4.5Cow Cross 110 kV 4.0 27.4 12.4 4.6 23.3 10.6 4.7 22.7 9.5 5.0 20.6 9.1Crane 110 kV 5.9 20.4 7.9 6.1 20.9 8.7 3.7 9.5 4.1 4.2 9.9 4.5Cullenagh 110 kV 5.6 28.4 12.0 6.5 32.5 13.8 5.5 21.0 8.8 6.2 25.3 10.7Cullenagh 220 kV 8.8 20.2 8.2 10.4 19.3 8.0 7.6 14.1 5.7 9.1 14.9 6.2Cunghill 110 kV 3.0 10.5 4.7 4.4 9.8 4.4 2.9 8.7 3.8 4.1 8.8 3.9Cushaling 110 kV 7.5 28.4 10.9 9.6 26.2 10.4 5.9 15.6 6.2 7.5 17.3 7.1Dallow 110 kV 3.4 10.8 5.2 4.6 7.1 3.3 2.9 9.3 4.6 4.0 6.1 2.9Dalton 110 kV 2.8 8.5 4.2 4.0 5.9 2.8 2.9 7.7 3.7 4.0 5.6 2.6Derrybrien 110 kV 3.1 9.8 4.3 4.6 9.2 4.1 3.2 9.1 3.8 4.7 8.9 3.9Derryiron 110 kV 6.6 19.6 8.1 8.3 19.4 8.0 5.6 9.5 4.2 6.6 11.5 4.9Doon 110 kV 2.8 12.4 6.4 4.0 8.4 4.0 2.9 10.8 5.4 4.1 8.0 3.7Dromada 110 kV 5.6 15.5 5.6 5.2 12.8 5.4 6.1 14.0 4.7 5.5 12.1 4.9Drumkeen 110 kV 3.9 14.1 5.2 5.1 12.5 5.2 4.0 13.2 4.5 5.1 12.0 4.9Drumline 110 kV 3.1 15.8 7.8 4.1 11.7 5.5 3.2 12.9 6.0 4.2 10.4 4.8Drybridge 110 kV 5.6 29.8 12.8 6.6 25.6 10.9 5.8 26.4 11.1 6.8 23.4 9.9Dundalk 110 kV 3.7 17.8 8.3 4.7 16.7 7.6 3.8 16.7 7.6 4.8 15.5 7.0Dunfirth 110 kV 4.8 13.1 5.9 6.0 9.0 3.9 4.9 10.4 4.6 6.0 7.8 3.4Dungarvan 110 kV 3.7 12.0 5.7 4.8 7.7 3.5 3.8 10.2 4.7 4.8 6.9 3.1Dunmanway 110 kV 3.2 13.1 6.2 4.7 11.5 5.2 3.4 11.6 5.2 4.9 10.7 4.7Dunstown 220 kV 11.4 46.9 18.8 10.8 43.6 18.1 11.8 33.9 13.3 11.2 34.6 14.2Dunstown 400 kV 21.4 14.7 6.6 15.8 12.1 5.2 20.4 11.3 4.9 16.0 10.0 4.3Ennis 110 kV 3.3 20.0 9.5 4.6 18.6 8.5 3.4 16.1 7.3 4.5 16.1 7.3Fassaroe A 110 kV 5.5 18.3 7.9 5.8 13.7 6.0 5.7 16.2 6.9 5.9 12.7 5.5Fassaroe B 110 kV 5.2 18.0 7.9 5.6 13.6 6.0 5.5 16.0 6.9 5.7 12.6 5.5Finglas 220 kV 18.3 61.6 25.6 17.2 72.6 31.1 13.0 33.2 13.3 13.5 43.6 18.2Kildonan 110 kV 6.6 33.6 14.1 5.5 28.9 12.7 6.7 27.9 11.5 5.7 25.4 11.1Finglas A 110 kV 36.8 34.9 15.5 31.7 38.5 16.8 24.8 27.1 11.1 24.9 31.7 13.2Finglas B 110 kV 37.7 37.5 16.6 32.8 45.7 20.0 24.9 27.3 11.2 24.8 34.9 14.5TotRMSBreak[kA]Flagford 110 kV 4.4 26.3 11.2 5.4 31.9 13.8 4.6 23.6 9.5 5.5 28.8 12.1E-5

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 (continued)BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Flagford 220 kV 7.3 16.2 6.7 9.8 15.1 6.3 7.6 14.3 5.8 9.9 13.7 5.7Galway 110 kV 4.3 25.4 11.5 5.1 26.9 12.0 4.4 20.8 9.0 5.1 22.9 10.1Garrow A 110 kV 4.6 15.3 5.5 3.6 14.4 6.4 4.8 13.7 4.4 3.7 13.4 5.6Garvagh 110 kV 4.5 13.4 5.0 6.3 12.3 5.0 4.6 12.1 4.4 6.3 11.3 4.6Gilra 110 kV 3.1 12.8 6.2 4.0 10.5 4.9 3.1 11.8 5.5 4.0 9.7 4.5Glanagow 220 kV 17.6 30.5 12.5 16.9 35.4 15.1 13.6 19.6 7.7 13.5 24.4 10.0Glanlee 110 kV 6.8 16.0 5.1 7.2 17.1 6.4 7.0 14.4 4.2 7.3 16.0 5.7Glasmore 110 kV 5.0 15.2 6.8 5.4 10.9 4.9 5.3 13.3 5.8 5.5 10.1 4.5Glenlara A 110 kV 3.7 7.6 3.2 5.6 5.8 2.5 3.7 7.0 2.9 5.5 5.5 2.3Golagh 110 kV 3.1 9.5 4.1 4.1 6.5 3.0 3.1 8.5 3.5 4.1 6.0 2.7Gorman 110 kV 6.1 29.1 12.4 7.1 33.0 13.9 6.3 26.2 10.8 7.3 30.0 12.5Gorman 220 kV 8.4 28.2 11.6 9.8 23.0 9.6 8.9 24.3 9.8 10.1 20.5 8.5Gortawee 110 kV 3.8 12.7 5.8 5.4 10.9 4.8 3.9 12.0 5.3 5.4 10.5 4.6Grange 110 kV 13.4 28.9 11.3 6.1 28.0 12.1 12.2 22.8 8.9 6.1 23.5 10.2Grange Castle 110 kV 17.0 31.4 12.4 8.5 35.4 14.5 10.3 29.7 11.5 6.4 31.8 13.5Great Island 110 kV 7.0 33.5 13.2 7.8 42.1 17.1 5.6 20.9 8.6 6.2 28.1 11.8Great Island 220 kV 10.0 24.4 9.7 11.7 25.1 10.4 7.7 15.5 6.2 9.1 17.8 7.4Griffinrath 110 kV 7.0 24.8 10.3 7.4 25.0 10.5 7.4 20.4 8.4 7.7 21.5 8.9Hartnett's Cross 110 kV 3.7 20.7 9.4 4.7 15.4 6.9 - - - - - -Huntstown A 220 kV 17.4 59.3 24.5 14.4 69.1 28.9 12.6 32.1 12.9 12.2 41.9 17.3Huntstown B 220 kV 15.7 55.4 22.6 11.9 62.2 25.6 13.4 33.4 13.5 11.8 41.8 17.2Ikerrin 110 kV 4.5 10.1 4.7 6.0 6.9 3.0 3.7 8.7 4.2 5.2 6.0 2.7Inchicore A 220 kV 14.5 48.7 19.7 9.1 53.6 22.0 12.8 36.6 14.4 9.8 43.9 17.8Inchicore B 220 kV 16.2 40.8 17.1 13.2 43.6 18.3 11.4 32.7 12.8 9.7 33.9 13.9Inchicore A 110 kV 31.8 37.9 16.3 27.7 46.6 19.8 16.8 35.3 13.5 15.5 44.1 17.3Inchicore B 110 kV 51.8 36.9 17.5 40.4 46.6 21.3 10.1 27.3 10.6 8.7 32.5 13.2Inniscarra 110 kV 3.3 20.6 9.6 4.6 18.9 8.6 3.5 15.8 7.0 4.6 16.0 7.2Irishtown 220 kV 16.7 52.5 21.5 14.6 61.1 25.6 13.8 36.1 14.2 12.6 44.9 18.4Keelderry 110 kV 3.4 8.5 3.7 4.9 7.2 3.2 3.5 8.0 3.3 5.0 7.0 3.0Kellis 110 kV 6.3 21.4 9.0 7.4 25.0 10.5 6.1 17.8 7.4 7.2 21.5 9.0Kellis 220 kV 7.9 19.1 7.9 9.8 16.5 6.9 7.7 15.1 6.2 9.5 14.1 5.9Kilbarry 110 kV 5.8 48.1 19.4 6.6 47.7 20.0 5.9 30.7 11.9 6.4 34.1 14.1Kilkenny 110 kV 3.0 10.3 5.2 4.3 9.9 4.6 3.0 8.6 4.3 4.2 8.8 4.1Killonan 110 kV 5.4 41.2 17.3 6.4 48.8 20.6 5.2 26.4 10.6 6.2 31.4 13.1Killonan 220 kV 5.5 22.6 9.7 7.4 22.6 9.6 8.2 16.4 6.4 9.5 16.2 6.6Killoteran 110 kV 4.8 24.6 10.7 4.7 24.8 11.2 4.6 17.8 7.7 4.6 19.5 8.8TotRMSBreak[kA]Kilmahud 110 kV 13.8 29.7 11.6 6.9 32.8 13.9 9.1 28.1 11.0 5.6 29.7 12.9E-6

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 (continued)BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Kilmore 110 kV 17.7 30.9 12.2 11.8 33.1 13.2 13.7 23.5 9.1 9.8 26.4 10.7Kilteel 110 kV 4.4 16.5 7.6 5.5 15.1 6.7 4.6 14.2 6.4 5.6 13.8 6.0Kiltoy 110 kV 3.7 12.8 5.0 4.8 10.6 4.6 3.8 12.0 4.4 4.9 10.1 4.2Kinnegad 110 kV 5.3 14.1 6.1 7.0 12.6 5.4 5.2 9.0 4.0 6.5 9.4 4.0Knockacummer 110 kV 3.7 7.0 3.0 4.6 5.2 2.3 3.7 6.5 2.7 4.5 4.9 2.2Knockearagh 110 kV 5.7 15.4 5.7 7.3 13.6 5.5 5.7 13.1 4.4 7.2 12.2 4.7Knockraha A 110 kV 7.6 56.0 21.7 8.6 54.6 22.0 - - - - - -Knockraha B 110 kV 7.6 56.0 21.7 8.6 54.6 22.0 7.0 33.3 12.6 7.7 35.4 14.2Knockraha A 220 kV 9.0 29.9 11.7 9.9 32.0 13.2 9.6 14.1 5.5 10.1 17.0 6.9Knockraha B 220 kV 11.2 23.5 9.4 12.1 23.3 9.7 10.0 16.4 6.4 10.8 17.4 7.2Knockumber 110 kV 3.7 15.9 7.6 4.5 12.8 5.9 3.7 14.2 6.7 4.6 11.5 5.3Lanesboro 110 kV 3.8 21.2 9.6 5.1 22.0 9.8 3.9 20.0 8.8 5.2 21.7 9.5Letterkenny 110 kV 4.2 16.4 6.0 5.3 15.5 6.4 4.3 15.2 5.2 5.4 14.6 5.8Liberty Street 110 kV 5.1 39.7 16.6 4.4 40.4 18.3 5.3 26.4 10.6 4.7 29.9 13.1Liberty Street 110 kV 5.0 39.5 16.5 4.3 40.0 18.3 5.2 26.3 10.6 4.5 29.6 13.1Limerick 110 kV 4.7 34.8 15.1 5.6 33.1 14.4 4.8 24.1 9.9 5.6 25.3 10.8Lisdrum 110 kV 2.7 9.7 4.9 3.8 6.4 3.1 2.8 9.2 4.5 3.9 6.2 3.0Lisheen 110 kV 3.6 7.8 3.7 5.1 5.7 2.6 3.5 7.1 3.4 5.0 5.4 2.4Lodgewood 110 kV 8.7 23.2 8.3 9.1 28.6 11.1 - - - - - -Lodgewood 220 kV 9.3 18.3 7.2 10.7 17.9 7.4 - - - - - -Longpoint 220 kV 12.2 21.8 8.7 14.4 22.9 9.7 8.7 9.3 3.7 9.7 11.9 4.9Louth 110 kV 10.4 44.3 16.9 11.2 55.5 21.8 10.9 40.1 14.8 11.5 49.3 19.1Louth 220 kV 9.4 44.4 17.9 10.6 43.1 18.0 10.3 38.6 15.2 11.3 37.2 15.4Macetown 110 kV 7.0 37.2 15.4 7.0 36.0 15.2 7.1 30.5 12.4 7.1 31.0 13.0Macroom 110 kV 5.1 31.8 13.0 6.2 27.2 11.5 5.5 24.1 9.1 6.4 22.7 9.3Mallow 110 kV 3.5 13.7 6.5 5.2 11.7 5.2 3.5 11.6 5.3 5.0 10.5 4.7Marina 110 kV 6.0 45.9 18.4 6.8 49.4 20.5 5.9 29.2 11.4 6.4 34.8 14.3Maynooth A 110 kV 11.1 33.1 13.0 11.9 40.2 16.0 11.3 26.2 10.2 11.9 32.8 13.0Maynooth B 110 kV 8.3 40.5 16.3 10.2 38.5 15.5 8.7 32.5 12.8 10.4 32.7 13.1Maynooth A 220 kV 10.8 41.0 16.5 11.2 37.4 15.6 10.4 31.2 12.3 11.0 30.5 12.6Maynooth B 220 kV 10.4 49.9 19.9 10.4 44.6 18.5 10.8 35.2 13.8 10.9 35.2 14.5Meath Hill 110 kV 3.2 13.2 6.3 4.6 11.8 5.4 3.3 12.4 5.8 4.6 11.2 5.1Meentycat 110 kV 3.7 12.0 4.5 5.2 10.9 4.5 3.8 11.4 4.0 5.2 10.6 4.3Midleton 110 kV 3.4 22.5 10.7 4.6 18.5 8.5 3.9 17.4 7.8 4.8 15.5 6.9Moneypoint G1 400 kV 26.0 18.6 8.5 20.3 18.3 8.2 19.8 12.4 5.3 18.1 13.9 6.1TotRMSBreak[kA]Moneypoint G2 400 kV 31.5 10.4 4.9 25.4 10.8 5.0 14.5 5.0 2.1 15.0 6.2 2.6E-7

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 (continued)BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Moneypoint G3 400 kV 26.0 18.6 8.5 20.3 18.3 8.2 19.8 12.4 5.3 18.1 13.9 6.1Moneypoint 110 kV 2.7 4.7 2.5 3.9 3.5 1.7 2.7 4.4 2.2 3.9 3.3 1.6Moneypoint A 220 kV 13.3 26.0 10.5 11.0 24.5 10.1 9.0 13.2 5.1 8.9 15.2 6.2Moneteen 110 kV 5.0 25.0 10.8 6.0 19.3 8.3 5.1 19.4 8.0 6.1 16.1 6.9Monread 110 kV 4.1 16.0 7.5 5.0 15.5 7.0 4.3 13.8 6.3 5.1 13.9 6.2Moy 110 kV 3.9 9.6 4.3 5.0 10.7 4.7 2.7 5.9 2.8 3.3 7.3 3.5Mullagharlin 110 kV 3.7 18.6 8.7 4.7 17.5 7.9 3.9 17.4 7.9 4.8 15.6 7.0Mullingar 110 kV 2.7 8.2 4.3 3.8 9.1 4.4 2.8 7.6 3.9 3.8 8.7 4.1Mungret A 110 kV 4.7 23.4 10.3 5.8 17.8 7.8 4.9 18.4 7.7 5.9 15.0 6.4Mungret B 110 kV 4.7 23.5 10.3 5.8 17.8 7.8 4.9 18.4 7.7 5.8 15.0 6.4Nangor 110 kV 14.8 30.3 11.9 7.2 33.5 14.1 9.5 28.7 11.2 5.7 30.2 13.1Navan 110 kV 5.2 25.2 11.1 6.1 25.7 11.2 5.0 21.6 9.4 5.8 21.8 9.4Nenagh 110 kV 2.6 7.0 3.7 3.8 4.4 2.1 - - - - - -Newbridge 110 kV 4.2 21.3 9.7 5.1 20.9 9.4 4.4 17.3 7.7 5.2 18.1 8.0North Wall 220 kV 16.9 56.4 23.1 9.8 59.9 24.4 12.4 30.8 12.3 9.8 37.8 15.5Oldcourt A 110 kV 3.6 22.2 10.4 4.3 17.4 8.1 4.1 18.8 8.2 4.6 15.6 7.1Oldcourt B 110 kV 3.6 22.4 10.5 4.4 17.6 8.2 4.1 19.0 8.3 4.6 15.8 7.1Oldstreet 220 kV 15.4 27.1 11.3 13.2 28.6 12.0 12.4 16.6 6.8 11.8 19.7 8.2Oldstreet 400 kV 19.3 18.2 7.9 13.4 17.0 7.2 15.5 12.3 5.1 12.8 13.1 5.5Oughtragh 110 kV 3.7 10.6 4.7 4.9 7.0 3.1 3.6 8.5 3.5 4.8 6.1 2.7Platin 110 kV 5.0 26.4 11.7 5.7 20.7 9.1 5.1 23.6 10.2 5.8 19.0 8.3Pollaphuca 110 kV 3.3 6.1 3.0 4.8 5.4 2.5 2.8 4.6 2.4 4.0 4.7 2.2Poolbeg A 110 kV 27.9 31.3 13.2 23.1 38.3 15.8 22.2 28.4 11.3 19.0 35.1 14.1Poolbeg B 110 kV 27.9 31.3 13.2 23.0 38.3 15.8 22.2 28.4 11.3 19.0 35.1 14.0Poolbeg A 220 kV 17.4 56.4 23.3 10.8 62.9 25.7 12.9 31.1 12.5 10.6 39.3 16.1Poolbeg B 220 kV 17.3 40.9 17.4 15.1 45.4 19.3 12.5 35.2 13.8 10.1 40.5 16.5Portlaoise 110 kV 3.9 18.1 8.5 5.4 15.3 6.8 3.9 15.4 7.0 5.3 13.9 6.1Prospect 220 kV 12.0 32.7 12.9 10.8 30.8 12.7 8.5 15.9 6.1 8.7 18.5 7.5Raffeen 220 kV 12.7 29.1 11.5 12.5 31.8 13.1 10.9 18.8 7.3 11.0 22.2 9.1Raffeen A 110 kV 5.1 33.0 14.0 5.9 38.7 16.6 7.1 30.9 11.7 7.5 39.3 15.8Raffeen B 110 kV 7.5 34.2 13.5 8.4 39.6 16.0 - - - - - -Rathkeale 110 kV 3.5 15.6 7.4 4.6 9.5 4.4 3.6 12.6 5.7 4.6 8.4 3.8Ratrussan 110 kV 3.4 14.6 6.2 4.4 16.4 7.3 3.5 13.8 5.6 4.5 16.0 6.9Richmond A 110 kV 2.9 10.3 5.1 4.0 7.5 3.5 3.0 9.7 4.7 4.1 7.1 3.4Richmond B 110 kV 2.9 10.2 5.1 4.3 9.8 4.6 3.0 9.6 4.7 4.3 9.4 4.3TotRMSBreak[kA]Rinawade 110 kV 5.0 23.4 10.4 6.0 16.9 7.4 5.2 19.5 8.5 6.1 15.1 6.5E-8

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-2 Short Circuit Currents for Maximum and Minimum Demand in 2010 (continued)BusWinter Peak 2010 Summer Valley 2010Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Ringaskiddy 110 kV 5.4 26.9 11.4 5.9 26.0 11.2 5.3 24.4 9.9 5.5 25.2 10.8Ryebrook 110 kV 5.3 29.4 12.9 6.0 20.6 9.0 5.5 24.3 10.4 6.1 18.3 7.9Sealrock 110 kV 7.5 23.5 9.3 9.2 25.9 10.4 7.8 20.5 7.8 9.5 23.8 9.4Sealrock 110 kV 7.5 23.5 9.3 9.2 25.9 10.4 7.8 20.5 7.8 9.5 23.8 9.4Shankill 110 kV 3.1 15.1 7.0 4.2 14.4 6.6 3.2 14.2 6.3 4.3 13.6 6.1Shannonbridge 110 kV 5.8 36.9 15.0 7.4 42.0 17.2 6.2 34.4 13.3 7.8 40.0 16.0Shannonbridge 220 kV 6.9 17.1 7.2 9.2 15.1 6.4 8.0 15.1 6.1 10.1 13.8 5.7Shellybanks A 220 kV 17.0 56.2 23.1 10.7 62.9 25.7 12.7 31.0 12.4 10.5 39.3 16.1Shellybanks B 220 kV 16.1 51.1 20.8 13.5 59.3 24.6 13.2 35.0 13.8 11.8 43.5 17.7Singland 110 kV 5.5 34.5 14.5 6.4 33.6 14.3 5.1 23.1 9.4 6.1 24.6 10.3Sligo 110 kV 3.3 16.1 6.9 4.6 14.6 6.5 3.3 13.8 5.6 4.5 13.2 5.8Somerset 110 kV 3.0 15.4 7.6 4.0 10.7 5.1 3.1 14.3 6.8 4.1 10.0 4.7Sorne Hill 110 kV 3.3 6.2 2.5 3.9 7.3 3.2 3.4 5.9 2.3 4.0 7.1 3.1Srananagh 110 kV 3.6 17.7 7.3 4.8 15.2 6.7 3.6 15.1 6.0 4.7 13.7 5.9Stevenstown 110 kV 4.7 12.4 5.6 5.1 8.5 3.8 4.9 11.1 5.0 5.2 8.0 3.6Stratford 110 kV 3.4 8.8 4.3 4.4 6.9 3.2 3.1 7.2 3.6 4.2 6.2 2.9Tynagh 110 kV 6.5 23.3 9.8 2.3 19.3 10.5 5.7 21.8 9.3 2.2 18.3 10.0Tarbert 110 kV 12.3 54.8 19.0 14.3 51.9 19.8 8.0 30.6 10.5 9.6 34.8 13.1Tarbert 220 kV 14.2 39.1 15.4 15.8 44.0 18.6 8.7 17.4 6.5 9.7 22.7 9.1Tawnaghmore 110 kV 3.7 8.1 3.6 5.0 8.3 3.7 2.6 5.0 2.4 3.3 5.8 2.8Tawnaghmore 110 kV 3.8 8.2 3.7 5.1 8.6 3.8 2.6 5.0 2.4 3.3 6.0 2.9Thornsberry 110 kV 4.8 14.7 6.5 6.1 13.6 5.9 3.6 5.5 2.6 4.5 6.2 2.9Thurles 110 kV 3.9 10.0 4.7 5.9 8.6 3.8 3.7 9.0 4.2 5.6 8.2 3.6Tipperary 110 kV 2.6 10.7 5.6 3.8 6.8 3.3 2.7 9.4 4.8 3.9 6.3 3.0Tonroe 110 kV 2.7 6.7 3.3 3.9 4.4 2.1 2.8 6.2 3.0 3.9 4.1 1.9Trabeg 110 kV 5.7 44.4 18.0 5.9 47.0 20.0 5.8 28.8 11.3 5.9 33.8 14.1Tralee 110 kV 5.0 23.4 8.9 6.3 19.4 8.0 4.7 16.4 5.7 5.9 14.8 5.9Trien A 110 kV 5.5 24.0 8.6 7.1 20.9 8.3 6.2 20.2 6.5 7.6 18.9 7.2Trillick 110 kV 3.4 6.7 2.7 4.0 7.3 3.2 3.4 6.4 2.4 4.1 7.0 3.0Tullabrack 110 kV 2.7 5.1 2.6 4.0 3.8 1.8 2.8 4.7 2.4 4.0 3.6 1.7Turlough Hill 220 kV 11.4 31.0 12.4 12.7 27.2 11.4 11.5 24.4 9.7 12.7 23.2 9.7Tynagh 220 kV 15.2 30.9 12.6 17.4 33.9 14.6 10.1 16.0 6.4 11.3 20.3 8.4Waterford 110 kV 5.6 27.9 11.6 6.0 28.2 12.1 5.1 19.4 8.2 5.5 21.5 9.3Wexford 110 kV 3.9 14.6 6.2 5.2 13.3 5.8 3.6 10.1 4.3 4.7 10.3 4.5Whitegate 110 kV 4.3 22.0 9.9 5.1 22.8 10.2 4.6 17.3 7.5 5.3 18.9 8.3Woodland 220 kV 12.1 55.2 22.1 11.6 52.8 21.9 12.0 35.9 14.2 11.9 38.8 16.0TotRMSBreak[kA]Woodland 400 kV 21.8 16.5 7.4 21.2 17.2 7.8 19.0 12.1 5.2 19.5 13.6 6.0E-9

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Adamstown 110 kV 13.7 40.4 15.8 6.6 41.7 17.8 13.6 33.6 12.8 7.0 35.8 15.0Agannygal 110 kV 3.0 11.9 5.4 4.3 9.9 4.5 3.1 11.2 4.9 4.3 9.5 4.3Aghada 110 kV 4.5 20.7 9.2 5.6 24.6 10.7 4.7 16.9 7.4 5.6 20.6 9.0Aghada A 220 kV 10.5 20.0 8.0 12.5 21.0 8.8 7.9 12.2 5.0 9.3 14.5 6.0Aghada B 220 kV 16.9 32.4 13.2 15.8 38.3 16.1 12.2 21.0 8.3 12.2 26.4 10.9Aghada C 220 kV 16.9 32.4 13.2 15.8 38.3 16.1 12.2 21.0 8.3 12.2 26.4 10.9Aghada D 220 kV 12.0 22.8 9.2 13.9 23.8 10.0 12.2 19.2 7.6 13.9 21.2 8.9Ahane 110 kV 4.5 28.5 12.7 5.3 24.4 10.8 4.6 23.9 10.4 5.3 21.5 9.5Anner 110 kV 2.7 11.5 6.0 4.0 7.6 3.6 2.8 10.3 5.2 4.0 7.2 3.4Ardnacrusha 110 kV 5.4 35.0 14.8 6.6 37.0 15.6 5.0 26.5 11.2 6.0 30.4 13.0Arigna 110 kV 4.7 17.0 7.1 6.0 13.1 5.6 4.9 15.5 6.2 6.1 12.0 5.1Arklow 110 kV 8.3 21.0 8.2 9.2 25.7 10.3 8.5 18.5 7.0 9.4 22.8 9.0Arklow 220 kV 9.0 19.4 7.8 10.3 18.1 7.6 9.3 16.0 6.3 10.4 15.6 6.4Arva 110 kV 3.3 19.3 9.0 4.5 15.5 7.1 3.4 17.9 8.0 4.6 14.5 6.5Athea 110 kV 6.5 21.4 7.8 8.4 17.5 6.9 7.0 19.3 6.7 8.8 16.6 6.4Athlone 110 kV 4.6 21.9 9.7 5.7 16.0 7.0 4.8 20.5 8.8 5.9 15.3 6.6Athy 110 kV 3.1 12.5 6.3 4.3 9.9 4.7 3.3 10.9 5.3 4.4 9.0 4.2Aughinish 110 kV 7.6 24.4 9.7 9.7 26.8 10.7 7.9 22.6 8.8 9.9 25.7 10.2Balgriffin 110 kV 15.0 39.2 15.2 8.8 40.6 16.6 13.9 30.3 11.7 9.0 33.1 13.4Balgriffin 220 kV 15.0 40.9 16.9 6.8 44.6 18.8 13.1 26.5 10.7 7.6 30.9 12.9Ballakelly 220 kV 10.1 51.9 21.0 9.9 49.1 20.5 10.4 40.8 16.1 10.2 38.5 15.9Ballybeg 110 kV 8.9 15.9 6.4 9.3 18.8 7.6 9.0 14.2 5.6 9.4 17.0 6.8Ballycummin 110 kV 4.7 28.9 12.8 5.9 25.3 11.0 4.8 24.3 10.5 5.8 22.4 9.7Ballydine 110 kV 2.9 13.3 6.8 4.2 10.1 4.8 3.0 11.6 5.7 4.2 9.3 4.4Ballylickey 110 kV 2.8 6.3 3.1 4.1 4.2 2.0 2.9 6.1 3.0 4.1 4.0 1.9Ballywater 110 kV 4.3 13.0 5.6 3.1 11.9 5.9 4.5 11.7 4.9 3.2 11.0 5.4Baltrasna 110 kV 6.0 23.8 10.3 7.3 18.9 8.0 6.1 20.9 8.8 7.3 17.2 7.2Bandon 110 kV 3.1 13.1 6.3 4.5 11.3 5.2 3.3 12.0 5.7 4.6 10.7 4.9Banoge 110 kV 3.6 12.8 5.9 4.6 11.4 5.2 3.8 11.5 5.1 4.7 10.5 4.7Barnahely A 110 kV 4.3 28.0 12.4 5.1 29.1 12.9 4.6 22.3 9.7 5.2 24.2 10.7Barnahely B 110 kV 6.3 29.5 12.1 7.0 29.7 12.4 6.1 23.6 9.6 6.7 24.9 10.5Baroda 110 kV 3.9 18.2 8.5 4.8 21.3 9.6 4.2 15.4 7.0 5.1 18.6 8.3Barrymore 110 kV 3.5 16.4 7.9 4.8 10.0 4.6 3.6 13.9 6.5 4.8 9.0 4.1Bellacorick 110 kV 3.1 8.2 3.9 4.2 8.3 3.9 2.8 6.5 3.1 3.8 7.1 3.4Binbane 110 kV 3.9 10.5 4.2 5.6 9.6 4.1 3.2 6.6 2.7 4.7 6.8 2.9Blake 110 kV 3.9 17.0 8.0 5.0 12.1 5.5 4.1 14.6 6.7 5.1 11.0 4.9Boggeragh 110 kV 15.1 14.2 5.5 12.0 8.8 3.5 7.4 17.9 7.0 7.8 11.2 4.6TotRMSBreak[kA]Booltiagh 110 kV 3.1 8.6 4.2 4.4 8.0 3.7 3.1 8.1 4.0 4.5 7.9 3.6E-10

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Bracklone 110 kV 3.4 13.9 6.8 4.6 9.9 4.6 3.6 12.1 5.7 4.7 9.1 4.2Brinny A 110 kV 3.0 11.6 5.7 4.3 9.5 4.4 3.1 10.7 5.1 4.4 9.0 4.1Brinny B 110 kV 3.0 11.7 5.7 4.3 9.5 4.4 3.1 10.7 5.2 4.4 9.1 4.2Bunbeg 110 kV 3.0 4.3 2.0 4.3 2.8 1.3 - - - - - -Butlerstown 110 kV 4.4 23.2 10.4 4.6 22.2 10.1 4.3 17.5 7.7 4.6 18.1 8.2Cahir 110 kV 2.9 15.0 7.6 4.2 9.5 4.5 3.1 13.7 6.7 4.3 9.5 4.4Carrick-on-Shannon 110 kV 4.2 26.0 11.3 5.0 28.3 12.5 4.4 23.4 9.8 5.3 25.6 11.0Carlow 110 kV 5.3 21.2 9.3 6.1 20.8 9.0 5.4 16.2 6.9 6.1 17.1 7.4Carrickmines A 110 kV 23.1 35.8 14.5 19.8 37.6 15.2 20.9 29.8 11.7 18.8 32.4 12.9Carrickmines B 110 kV 32.2 32.9 14.2 27.0 36.4 15.4 27.4 27.5 11.4 24.6 31.4 13.0Carrickmines 220 kV 14.7 50.0 20.3 10.5 57.5 23.6 13.8 35.0 13.9 10.9 42.4 17.3Carrigadrohid 110 kV 4.3 25.4 10.8 5.4 22.2 9.6 5.1 26.1 10.5 6.0 22.7 9.6Carrowbeg 110 kV 2.7 5.8 3.0 4.0 5.6 2.6 2.7 5.4 2.7 4.0 5.2 2.4Cashla 110 kV 6.2 37.1 15.4 7.1 46.2 19.3 6.1 30.1 12.3 6.8 38.3 15.9Cashla 220 kV 7.7 27.3 11.2 9.8 26.9 11.2 7.6 19.9 8.0 9.3 21.2 8.8Castlebar 110 kV 3.2 10.4 4.9 4.5 9.8 4.5 3.2 9.2 4.2 4.5 9.0 4.1Castledockrill 110 kV 7.0 19.9 7.4 4.5 21.6 9.4 7.3 17.6 6.3 4.7 19.4 8.3Castlefarm A 110 kV 6.9 23.2 9.4 8.5 24.6 10.0 7.2 21.4 8.5 8.7 23.5 9.5Castlefarm B 110 kV 6.9 23.1 9.4 8.5 24.5 10.0 7.2 21.4 8.5 8.7 23.5 9.5Castleview 110 kV 3.7 27.9 13.0 4.5 20.6 9.5 4.0 22.1 9.9 4.6 17.5 7.9Cathaleen's Fall 110 kV 4.9 24.6 9.3 5.9 22.4 9.3 4.3 19.1 7.2 5.3 19.4 8.1Cauteen 110 kV 2.8 12.8 6.5 4.0 7.9 3.7 3.0 11.8 5.8 4.1 7.4 3.5Mid-Cavan 220 kV 11.1 37.4 15.4 10.3 36.1 15.1 11.5 31.6 12.7 10.7 30.2 12.5Mid-Cavan 400 kV 14.3 26.8 11.3 10.3 22.7 9.5 14.5 22.2 9.2 10.8 18.9 7.9Charleville 110 kV 3.7 14.1 6.4 5.1 9.8 4.4 3.8 12.9 5.7 5.1 9.2 4.1Cherrywood 110 kV 10.3 25.4 10.1 8.5 26.3 10.8 10.5 21.8 8.5 8.7 23.4 9.6Clahane 110 kV 3.9 23.6 9.8 5.4 19.6 8.4 4.3 21.0 8.1 5.7 18.4 7.7Clashavoon A 110 kV 5.7 27.9 11.0 7.3 28.1 11.5 7.8 34.0 12.3 9.3 33.8 13.2Clashavoon B 110 kV 26.1 19.6 8.1 25.4 16.5 6.9 7.8 34.0 12.3 9.3 33.8 13.2Clashavoon 220 kV 10.0 26.1 10.5 11.3 21.8 9.1 9.9 21.3 8.3 11.0 20.8 8.6Cliff 110 kV 4.4 18.0 7.2 5.5 15.4 6.6 4.0 14.1 5.7 5.0 13.5 5.8Clonkeen A 110 kV 6.2 18.8 6.2 6.6 18.8 7.3 6.6 18.7 5.8 6.9 18.9 7.1Cloon 110 kV 4.4 16.7 7.6 5.5 11.8 5.2 4.5 14.8 6.6 5.5 10.8 4.7College Park 110 kV 8.5 44.9 18.0 6.6 47.4 20.2 8.3 35.6 14.1 6.8 39.0 16.4Coolroe 110 kV 3.3 20.6 9.6 4.6 19.7 8.9 3.4 17.5 8.2 4.5 17.7 8.0Coomagearlahy 110 kV 6.7 16.1 5.1 7.6 17.5 6.5 7.0 16.0 4.8 8.0 17.6 6.3TotRMSBreak[kA]Corderry 110 kV 4.6 19.2 7.6 6.0 17.7 7.4 4.8 17.4 6.6 6.2 16.2 6.6E-11

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Corduff A 110 kV 9.8 52.8 20.8 11.2 58.6 23.4 9.2 40.7 15.8 10.5 46.7 18.5Corduff B 110 kV 9.8 52.8 20.8 11.2 58.6 23.4 9.2 40.7 15.8 10.5 46.7 18.5Corduff 220 kV 16.9 65.0 26.8 15.7 73.1 31.0 13.4 36.1 14.4 13.3 43.8 18.2Corraclassy 110 kV 3.7 13.7 6.2 5.0 11.0 4.9 3.8 13.0 5.7 5.1 10.4 4.6Cow Cross 110 kV 4.0 27.9 12.6 4.6 23.6 10.7 4.3 22.2 9.8 4.8 20.0 9.0Crane 110 kV 5.9 20.5 8.1 6.1 21.0 8.8 6.1 18.0 6.8 6.3 19.0 7.8Cullenagh 110 kV 5.5 29.2 12.4 6.4 33.2 14.1 5.4 22.0 9.2 6.2 26.2 11.1Cullenagh 220 kV 8.9 20.8 8.4 10.5 19.7 8.2 7.8 15.0 6.0 9.3 15.5 6.4Cunghill 110 kV 3.1 11.8 5.4 4.5 10.8 4.9 3.1 10.1 4.5 4.3 9.7 4.4Cushaling 110 kV 7.2 28.7 11.1 9.2 26.4 10.6 6.0 18.4 7.4 7.6 20.1 8.2Dallow 110 kV 3.4 10.9 5.2 4.6 7.1 3.3 3.5 10.2 4.8 4.7 6.7 3.1Dalton 110 kV 2.8 8.6 4.3 4.0 6.1 2.9 2.9 7.8 3.8 4.0 5.7 2.7Derrybrien 110 kV 3.1 9.8 4.3 4.5 9.2 4.1 3.2 9.3 3.9 4.6 9.0 3.9Derryiron 110 kV 5.9 22.5 9.5 7.6 21.4 8.9 5.3 13.1 5.7 6.6 14.8 6.3Doon 110 kV 2.8 12.6 6.5 4.0 8.4 4.0 2.9 11.2 5.6 4.1 8.0 3.8Dromada 110 kV 5.3 17.9 6.9 4.9 14.1 6.2 5.7 16.3 6.0 5.1 13.4 5.7Drumkeen 110 kV 3.9 15.3 5.8 5.1 13.3 5.6 3.9 13.7 4.9 5.1 12.3 5.0Drumline 110 kV 3.1 15.9 7.8 4.3 13.6 6.4 3.2 14.0 6.7 4.3 12.4 5.7Drybridge 110 kV 5.3 30.8 13.4 6.4 26.2 11.3 5.5 27.1 11.4 6.6 23.5 10.0Dundalk 110 kV 3.5 18.7 8.9 4.6 17.3 7.9 3.6 17.1 7.9 4.7 15.7 7.1Dunfirth 110 kV 4.6 14.4 6.5 5.9 9.5 4.2 4.8 11.2 5.0 6.0 8.1 3.5Dungarvan 110 kV 3.6 12.1 5.8 4.7 7.7 3.5 3.8 10.5 4.9 4.8 7.0 3.2Dunmanway 110 kV 3.9 16.9 7.5 5.5 14.7 6.4 4.3 16.8 7.2 5.8 14.7 6.3Dunstown 220 kV 11.3 49.2 19.8 10.6 45.0 18.7 12.0 36.6 14.4 11.3 36.0 14.8Dunstown 400 kV 19.9 15.8 7.0 14.6 12.6 5.4 19.2 12.6 5.5 14.8 10.5 4.5Ennis 110 kV 3.3 20.1 9.6 4.6 19.0 8.7 3.5 18.1 8.3 4.7 17.6 8.0Fassaroe A 110 kV 5.1 17.7 7.8 5.5 13.2 5.8 5.3 15.7 6.8 5.6 12.1 5.3Fassaroe B 110 kV 5.2 18.2 8.0 5.6 13.6 6.0 5.4 16.1 6.9 5.7 12.5 5.5Finnstown 110 kV 17.4 42.8 16.8 8.2 45.1 18.6 16.5 35.3 13.5 8.6 38.4 15.6Finnstown 220 kV 12.4 59.9 24.0 10.9 60.1 24.8 12.5 41.1 16.1 11.5 44.3 18.2Finglas 220 kV 18.4 64.4 26.9 17.1 75.8 32.5 13.8 35.2 14.2 13.8 44.2 18.4Kildonan 110 kV 6.6 34.2 14.4 5.5 29.1 12.9 6.6 28.3 11.7 5.6 25.3 11.1Finglas A 110 kV 26.1 44.2 18.2 19.2 48.0 19.3 20.1 33.4 13.1 17.0 38.0 15.1Finglas B 110 kV 38.1 37.9 16.9 33.0 46.1 20.2 26.4 27.9 11.5 25.1 35.0 14.6Flagford 110 kV 4.5 27.6 11.9 5.4 33.5 14.5 4.7 24.8 10.2 5.6 30.1 12.8Flagford 220 kV 7.2 19.2 7.9 9.5 17.9 7.5 7.5 16.8 6.7 9.7 15.9 6.6TotRMSBreak[kA]Galway 110 kV 4.3 25.4 11.5 5.0 27.1 12.2 4.3 21.5 9.5 5.0 23.7 10.5E-12

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Garrow A 110 kV 4.6 14.9 5.3 3.6 14.2 6.3 4.7 14.7 5.0 3.6 14.1 6.1Garvagh 110 kV 5.1 15.2 5.8 6.8 13.8 5.6 5.2 13.9 5.1 6.9 12.7 5.1Gilra 110 kV 3.0 13.2 6.5 4.0 10.7 5.0 3.1 12.1 5.8 4.0 9.8 4.6Glanagow 220 kV 17.2 32.8 13.4 17.1 39.0 16.7 12.7 21.7 8.5 13.0 27.3 11.3Glanlee 110 kV 6.6 15.5 5.0 7.0 16.7 6.3 6.9 15.4 4.7 7.3 16.8 6.2Glasmore 110 kV 4.4 16.7 7.7 4.9 11.5 5.2 4.7 14.6 6.5 5.0 10.6 4.8Glenlara A 110 kV 3.7 7.6 3.2 5.6 5.8 2.5 3.8 7.3 3.0 5.7 5.6 2.4Glenree 110 kV 3.5 10.1 4.6 4.6 8.4 3.8 3.0 7.5 3.5 3.9 7.0 3.2Golagh 110 kV 3.0 10.0 4.5 4.1 6.6 3.1 3.1 9.1 3.9 4.1 6.2 2.8Gorman 110 kV 5.8 33.8 14.4 6.9 37.5 15.8 6.1 29.9 12.3 7.2 33.2 13.8Gorman 220 kV 8.6 30.6 12.6 9.8 24.3 10.2 9.1 25.7 10.3 10.1 21.1 8.8Gortawee 110 kV 3.9 13.3 6.0 5.5 11.3 5.0 4.0 12.5 5.5 5.6 10.9 4.7Grange 110 kV 11.7 36.6 14.3 6.5 37.0 15.8 11.5 28.7 11.1 6.9 30.5 12.9Grange Castle 110 kV 18.0 43.2 17.0 8.7 46.0 18.8 17.0 35.5 13.7 9.0 39.1 15.8Great Island 110 kV 7.0 35.3 14.0 7.8 44.1 18.0 5.6 22.1 9.1 6.2 29.5 12.4Great Island 220 kV 10.1 25.2 10.0 11.8 25.7 10.7 7.9 16.6 6.6 9.4 19.0 7.8Griffinrath 110 kV 6.9 25.8 10.8 7.3 25.8 10.9 7.5 21.6 8.8 7.8 22.3 9.3Hartnett's Cross 110 kV 3.6 18.4 8.3 4.6 14.3 6.5 4.0 18.7 8.2 4.9 14.2 6.3Huntstown A 220 kV 17.4 61.9 25.6 14.2 72.0 30.1 13.6 34.5 13.9 12.6 42.9 17.8Huntstown B 220 kV 15.8 57.8 23.8 11.7 64.4 26.6 12.8 32.8 13.1 11.2 39.5 16.2Ikerrin 110 kV 4.5 10.3 4.7 6.0 6.9 3.0 4.6 9.6 4.4 6.1 6.6 2.9Inchicore A 220 kV 14.0 52.4 21.2 8.8 57.7 23.7 13.2 36.3 14.3 9.5 42.5 17.3Inchicore B 220 kV 14.1 47.3 19.4 12.1 49.8 20.8 13.4 33.6 13.5 12.1 37.4 15.5Inchicore A 110 kV 31.6 38.2 16.5 27.6 47.3 20.1 26.5 31.7 13.0 24.6 39.8 16.5Inchicore B 110 kV 29.7 47.4 20.1 23.8 57.9 23.9 24.8 38.5 15.5 21.5 47.8 19.3Inniscarra 110 kV 3.4 20.0 9.3 4.6 18.5 8.4 3.4 17.1 8.0 4.5 16.8 7.7Irishtown 220 kV 16.3 54.9 22.5 13.7 64.2 26.7 14.3 36.9 14.6 13.2 45.6 18.8Keelderry 110 kV 3.4 8.5 3.7 4.9 7.2 3.2 3.4 8.1 3.4 5.0 7.0 3.1Kellis 110 kV 6.3 23.4 10.0 7.5 26.9 11.3 6.3 17.6 7.4 7.4 21.3 8.9Kellis 220 kV 8.0 20.0 8.3 10.0 17.0 7.1 7.8 15.5 6.3 9.6 14.2 5.9Kilbarry 110 kV 5.9 49.4 19.8 6.7 48.5 20.2 5.7 35.3 14.2 6.4 37.8 15.8Kilkenny 110 kV 4.2 16.7 7.7 6.1 13.3 5.8 3.0 8.6 4.3 4.2 8.8 4.1Killonan 110 kV 5.5 42.7 18.0 6.5 50.4 21.3 5.5 34.2 14.0 6.4 41.6 17.4Killonan 220 kV 5.5 23.8 10.2 7.4 23.5 9.9 5.9 19.4 8.0 7.6 20.1 8.4Killoteran 110 kV 4.8 25.4 11.1 4.7 25.3 11.5 4.6 18.6 8.1 4.6 20.1 9.1TotRMSBreak[kA]Kilmahud 110 kV 13.4 40.1 15.6 6.7 41.8 17.7 13.3 33.3 12.7 7.1 35.9 15.0E-13

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Kilmore 110 kV 17.7 41.0 16.1 11.9 43.9 17.5 15.6 31.4 12.1 11.7 35.3 14.0Kilpaddoge 110 kV 10.9 59.0 21.6 12.5 58.5 22.7 10.1 44.0 15.5 11.6 47.0 17.9Kilpaddoge 220 kV 16.0 55.2 22.4 15.0 63.0 26.5 11.9 31.5 12.1 12.2 39.6 16.1Kilteel 110 kV 4.3 16.8 7.7 5.5 15.3 6.8 4.5 14.4 6.5 5.6 13.8 6.1Kiltoy 110 kV 3.8 14.1 5.6 4.9 11.4 4.9 3.8 12.3 4.6 4.9 10.2 4.3Kinnegad 110 kV 4.7 18.9 8.5 6.3 16.8 7.2 5.0 10.9 4.8 6.4 10.6 4.6Knockacummer 110 kV 3.7 7.0 3.0 4.6 5.2 2.3 3.8 6.8 2.8 4.6 5.0 2.2Knockearagh 110 kV 5.5 15.3 5.8 7.0 13.6 5.5 5.7 14.5 5.2 7.3 13.0 5.2Knockraha A 110 kV 7.8 58.6 22.7 8.8 56.3 22.7 19.8 14.7 5.8 22.1 15.0 6.2Knockraha B 110 kV 7.8 58.6 22.7 8.8 56.3 22.7 7.2 39.2 15.2 8.1 40.0 16.2Knockraha A 220 kV 8.9 32.0 12.7 10.0 33.7 13.9 8.4 21.6 8.5 9.4 24.4 10.0Knockraha B 220 kV 11.9 24.8 10.0 12.3 24.3 10.1 10.7 18.1 7.2 11.1 18.9 7.8Knockumber 110 kV 3.5 17.1 8.3 4.4 13.4 6.2 3.6 15.8 7.4 4.5 12.5 5.7Lanesboro 110 kV 3.8 23.5 10.8 5.1 23.8 10.6 4.0 21.1 9.3 5.3 22.6 9.9Letterkenny 110 kV 4.4 18.6 6.8 5.5 17.3 7.1 4.2 15.8 5.5 5.3 14.9 6.0Liberty Street 110 kV 5.2 40.7 16.9 4.4 41.1 18.6 5.0 29.6 12.3 4.5 32.5 14.6Liberty Street 110 kV 5.1 40.5 16.9 4.3 40.7 18.6 5.0 29.5 12.3 4.4 32.3 14.6Limerick 110 kV 4.6 35.6 15.6 5.6 34.5 15.1 4.7 28.9 12.3 5.5 29.7 12.9Lisdrum 110 kV 2.7 10.1 5.2 3.8 6.4 3.1 2.8 9.5 4.7 3.9 6.3 3.0Lisheen 110 kV 3.6 7.9 3.8 5.2 5.8 2.6 3.7 7.4 3.5 5.2 5.6 2.5Lodgewood 110 kV 8.6 23.3 8.4 9.1 28.8 11.2 8.8 20.3 7.1 9.3 25.4 9.7Lodgewood 220 kV 9.2 18.5 7.4 10.7 18.1 7.5 9.0 14.8 5.8 10.4 15.2 6.3Longpoint 220 kV 12.1 22.7 9.1 14.3 23.8 10.1 12.3 19.2 7.6 14.4 21.3 9.0Louth 110 kV 9.9 49.8 19.2 10.7 61.5 24.4 10.1 43.2 16.1 10.7 52.0 20.3Louth 220 kV 10.4 54.2 21.9 11.2 51.4 21.4 10.7 42.6 16.8 11.3 40.1 16.6Macetown 110 kV 6.9 37.9 15.8 6.9 36.4 15.4 7.0 30.9 12.6 7.0 30.9 13.0Macroom 110 kV 4.6 26.8 11.2 5.7 24.0 10.3 5.6 28.2 11.1 6.5 25.0 10.4Mallow 110 kV 3.5 13.8 6.5 5.2 11.7 5.2 3.6 12.4 5.8 5.2 11.0 4.9Marina 110 kV 6.2 47.3 18.8 6.9 50.5 20.9 5.7 33.1 13.4 6.3 38.4 16.1Maynooth A 110 kV 11.1 34.9 13.8 11.9 42.4 16.9 11.9 28.2 10.9 12.5 34.8 13.8Maynooth B 110 kV 8.3 41.7 16.9 10.2 39.3 15.9 8.9 33.7 13.3 10.6 33.3 13.3Maynooth A 220 kV 10.5 50.2 20.1 10.7 45.2 18.8 11.2 36.8 14.4 11.3 35.7 14.7Maynooth B 220 kV 10.6 56.4 22.6 10.6 50.7 21.1 11.3 39.8 15.6 11.2 39.0 16.0Meath Hill 110 kV 3.7 20.3 9.5 5.0 17.0 7.7 3.8 18.6 8.4 5.1 15.9 7.1Meentycat 110 kV 3.7 12.8 4.9 5.2 11.3 4.8 3.8 11.8 4.2 5.2 10.8 4.4TotRMSBreak[kA]Midleton 110 kV 3.4 22.8 10.9 4.6 18.6 8.5 3.7 18.6 8.6 4.7 16.1 7.3E-14

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]Moneypoint G1 400 kV 25.4 28.3 12.8 22.6 29.4 13.4 18.3 19.0 8.0 18.5 21.7 9.4Moneypoint G2 400 kV 33.6 11.0 5.3 25.1 11.3 5.2 18.9 6.1 2.6 18.3 7.3 3.2Moneypoint G3 400 kV 25.4 28.3 12.8 22.6 29.4 13.4 18.3 19.0 8.0 18.5 21.7 9.4Moneypoint 110 kV 2.7 4.7 2.5 3.9 3.4 1.6 2.7 4.5 2.3 3.9 3.3 1.6Moneypoint A 220 kV 13.2 30.1 12.2 10.3 27.0 11.2 10.3 18.5 7.3 9.4 19.5 8.0Moneypoint B 220 kV 16.3 51.2 21.0 12.8 58.0 24.0 12.5 30.6 11.8 11.4 38.0 15.4Moneteen 110 kV 5.0 24.7 10.8 6.1 19.5 8.4 5.1 21.3 9.1 6.1 17.6 7.6Monread 110 kV 4.0 16.2 7.6 5.0 15.5 7.0 4.3 13.9 6.3 5.1 14.0 6.3Moy 110 kV 4.0 10.4 4.6 5.2 11.3 5.0 2.9 6.7 3.2 3.6 8.1 3.8Mullagharlin 110 kV 3.6 19.6 9.3 4.6 18.1 8.3 3.7 17.9 8.3 4.7 15.7 7.1Mullingar 110 kV 3.5 14.8 7.2 4.9 14.6 6.6 2.8 7.7 4.0 3.8 8.7 4.2Mulreavy 110 kV 7.4 12.5 4.8 7.4 6.3 2.6 7.1 11.1 4.2 7.3 5.8 2.4Mungret A 110 kV 4.7 23.1 10.3 5.8 17.9 7.8 4.8 20.1 8.7 5.9 16.3 7.1Mungret B 110 kV 4.7 23.2 10.3 5.8 17.9 7.8 4.8 20.1 8.7 5.8 16.3 7.1Nangor 110 kV 14.8 41.2 16.1 7.0 42.9 18.1 14.4 34.1 13.0 7.3 36.7 15.2Navan 110 kV 4.9 28.5 12.6 5.9 28.3 12.3 5.2 25.6 10.9 6.1 25.6 11.0Nenagh 110 kV 2.6 7.1 3.7 3.8 4.4 2.1 2.7 6.5 3.3 3.9 4.1 2.0Newbridge 110 kV 4.1 21.6 9.9 5.0 21.1 9.5 4.4 17.7 7.9 5.2 18.3 8.1Nore 110 kV 4.3 16.4 7.6 5.4 12.7 5.6 2.9 8.3 4.2 3.8 8.3 4.0North Wall 220 kV 16.8 58.6 24.1 9.5 61.7 25.2 13.0 32.4 13.0 9.8 38.1 15.6Oldcourt A 110 kV 3.6 22.6 10.6 4.3 17.6 8.2 3.8 18.5 8.5 4.5 15.3 7.0Oldcourt B 110 kV 3.6 22.8 10.7 4.4 17.9 8.3 3.9 18.7 8.5 4.5 15.5 7.1Oldstreet 220 kV 15.6 29.2 12.2 13.0 30.2 12.7 12.9 19.0 7.8 11.8 21.6 9.0Oldstreet 400 kV 16.1 22.9 9.7 11.0 19.7 8.3 13.8 16.7 6.8 10.9 15.8 6.6Oughtragh 110 kV 3.5 10.7 4.9 4.7 7.0 3.2 3.6 9.9 4.4 4.8 6.6 2.9Platin 110 kV 4.7 27.4 12.3 5.5 21.1 9.3 4.9 24.2 10.6 5.7 19.2 8.4Pollaphuca 110 kV 3.3 6.2 3.1 4.7 5.5 2.5 2.8 4.5 2.3 4.0 4.6 2.2Poolbeg A 110 kV 26.1 32.7 13.7 21.9 40.1 16.4 23.1 27.6 11.1 20.3 34.2 13.8Poolbeg B 110 kV 26.1 32.7 13.6 21.9 40.0 16.4 23.0 27.6 11.1 20.3 34.2 13.8Poolbeg A 220 kV 17.3 58.6 24.3 10.5 65.0 26.6 13.4 32.6 13.1 10.5 39.6 16.2Poolbeg B 220 kV 14.7 46.2 19.1 13.1 50.2 21.1 13.6 32.8 13.2 12.8 37.5 15.6Portlaoise 110 kV 3.8 18.4 8.6 5.4 15.5 6.9 4.1 15.7 7.1 5.5 13.9 6.1Prospect 220 kV 11.9 40.4 16.1 10.2 36.4 15.1 9.8 24.2 9.4 9.4 25.6 10.5Raffeen 220 kV 15.5 32.4 13.1 13.3 37.7 15.6 11.9 21.6 8.5 11.1 26.7 10.9Raffeen A 110 kV 5.2 34.1 14.4 6.0 40.1 17.2 5.4 26.3 11.0 6.0 32.0 13.6TotRMSBreak[kA]Raffeen B 110 kV 7.8 35.8 14.0 8.7 41.6 16.7 7.2 27.7 10.9 8.0 33.4 13.5E-15

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2013 Summer Valley 2013Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Ralappane 110 kV 8.9 46.5 17.6 9.6 40.0 16.0 8.7 36.3 13.2 9.4 33.6 13.2Rathkeale 110 kV 3.4 16.1 7.7 4.6 9.8 4.5 3.5 14.0 6.5 4.6 8.9 4.1Ratrussan 110 kV 3.4 15.7 6.8 4.5 17.3 7.7 3.5 14.8 6.1 4.6 16.9 7.3Richmond A 110 kV 2.9 10.8 5.4 4.0 7.7 3.6 3.0 9.9 4.9 4.1 7.2 3.4Richmond B 110 kV 2.9 10.7 5.4 4.2 10.1 4.7 3.0 9.8 4.8 4.3 9.5 4.4Rinawade 110 kV 4.9 24.2 10.8 6.0 17.3 7.5 5.2 20.3 8.8 6.2 15.3 6.6Ringaskiddy 110 kV 5.5 27.8 11.7 6.0 26.7 11.5 5.5 22.4 9.4 5.9 22.6 9.7Ryebrook 110 kV 5.3 29.8 13.1 6.0 20.7 9.0 5.5 24.9 10.6 6.1 18.4 7.9Salthill 110 kV 3.8 22.0 10.3 3.7 22.3 10.7 3.9 18.9 8.6 3.8 19.7 9.4Screeb 110 kV 3.3 4.9 2.5 4.3 3.1 1.4 3.3 4.6 2.2 4.3 2.9 1.3Sealrock 110 kV 7.4 23.9 9.6 9.1 26.2 10.6 7.6 22.1 8.6 9.4 25.2 10.0Sealrock 110 kV 7.4 23.9 9.6 9.1 26.2 10.6 7.6 22.1 8.6 9.4 25.2 10.0Shankill 110 kV 3.3 17.8 8.1 4.5 16.4 7.4 3.4 16.6 7.2 4.6 15.5 6.9Shannonbridge 110 kV 5.8 38.3 15.7 7.4 43.3 17.8 6.2 36.3 14.1 7.9 41.6 16.7Shannonbridge 220 kV 6.9 17.4 7.3 9.2 15.4 6.5 7.4 15.6 6.4 9.6 14.2 5.9Shellybanks A 220 kV 16.9 58.4 24.1 10.4 65.0 26.6 13.3 32.5 13.1 10.5 39.5 16.2Shellybanks B 220 kV 15.6 53.4 21.7 12.7 62.2 25.7 13.6 35.7 14.1 12.3 44.1 18.0Singland 110 kV 5.5 35.4 15.0 6.5 34.3 14.6 5.3 28.2 11.7 6.2 29.0 12.3Sligo 110 kV 3.6 20.2 8.9 4.7 19.2 8.6 3.7 17.8 7.4 4.7 17.4 7.6Somerset 110 kV 2.9 15.6 7.7 4.0 10.8 5.1 3.0 14.5 7.0 4.1 10.1 4.7Sorne Hill 110 kV 3.3 6.3 2.6 3.9 7.5 3.4 3.3 5.9 2.3 3.9 7.2 3.1Srananagh 110 kV 4.5 25.3 10.3 5.7 27.5 11.6 4.7 22.1 8.6 5.9 24.5 10.1Srananagh 220 kV 7.1 11.8 4.8 9.7 9.6 4.0 7.2 10.5 4.2 9.8 8.8 3.6Stevenstown 110 kV 4.2 13.4 6.3 4.7 8.9 4.1 4.4 12.0 5.5 4.9 8.3 3.8Stratford 110 kV 3.3 9.1 4.5 4.4 7.1 3.3 3.2 7.2 3.5 4.2 6.1 2.9Tynagh 110 kV 6.5 23.4 9.9 2.3 19.4 10.5 6.7 20.4 8.5 2.5 17.6 9.4Tarbert 110 kV 15.9 50.2 18.5 18.9 47.2 18.7 11.7 32.5 11.8 14.2 35.5 13.7Tarbert 220 kV 16.4 55.2 22.4 16.3 63.3 26.8 11.5 30.4 11.7 12.2 38.7 15.7Tawnaghmore 110 kV 3.8 8.5 3.9 5.1 8.6 3.8 2.7 5.5 2.7 3.6 6.3 3.0Tawnaghmore 110 kV 3.9 8.7 3.9 5.2 9.0 4.0 2.7 5.5 2.7 3.6 6.4 3.1Thornsberry 110 kV 4.4 15.3 6.9 5.8 14.0 6.1 4.8 11.3 5.0 6.0 11.3 4.9Thurles 110 kV 3.9 10.2 4.8 6.0 8.7 3.8 4.0 9.5 4.4 6.1 8.6 3.7Tievebrack 110 kV 4.5 9.7 3.9 6.0 7.4 3.1 - - - - - -Tipperary 110 kV 2.7 11.3 5.9 3.9 6.9 3.3 2.8 10.4 5.3 4.0 6.6 3.1Tonroe 110 kV 2.7 6.7 3.4 3.9 4.4 2.1 2.8 6.3 3.1 3.9 4.1 2.0Trabeg 110 kV 5.8 45.8 18.5 6.0 48.1 20.4 5.6 32.6 13.2 5.7 37.2 15.9E-16

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-3 Short Circuit Currents for Maximum and Minimum Demand in 2013 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Tralee 110 kV 4.1 24.6 10.1 5.5 19.9 8.5 4.6 22.0 8.5 5.8 18.6 7.8Trien A 110 kV 5.5 34.1 12.9 7.0 28.2 11.5 6.2 28.9 10.2 7.4 25.6 10.1Trillick 110 kV 3.3 6.9 2.8 4.0 7.4 3.3 3.4 6.4 2.5 4.1 7.1 3.1Tullabrack 110 kV 2.7 5.1 2.6 3.9 3.8 1.8 2.7 4.8 2.5 4.0 3.6 1.7Turlough Hill 220 kV 11.2 32.0 12.9 12.5 27.8 11.7 11.5 25.6 10.1 12.7 23.7 9.9Tynagh 220 kV 15.0 32.1 13.2 17.1 34.8 15.0 10.2 17.6 7.1 11.5 21.8 9.1Waterford 110 kV 5.6 28.9 12.2 6.0 28.9 12.5 5.0 20.3 8.6 5.5 22.2 9.7Wexford 110 kV 3.9 14.7 6.3 5.2 13.4 5.9 4.1 12.9 5.3 5.3 12.3 5.3Whitegate 110 kV 4.2 22.2 10.0 5.1 23.0 10.3 4.4 17.9 8.0 5.1 19.4 8.6Woodland 220 kV 12.9 61.0 24.7 11.9 56.7 23.6 13.1 40.0 16.0 12.3 40.6 16.9Woodland 400 kV 17.3 28.2 12.2 14.2 25.8 11.0 16.4 22.0 9.2 14.2 20.5 8.7Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Adamstown 110 kV 13.8 40.5 15.8 6.6 41.7 17.8 13.2 33.4 12.8 6.9 36.0 15.1Agannygal 110 kV 3.0 12.2 5.6 4.3 10.1 4.6 3.1 11.4 5.0 4.3 9.6 4.3Aghada 110 kV 4.6 20.6 9.2 5.6 24.4 10.7 4.8 16.8 7.4 5.7 20.5 8.9Aghada A 220 kV 10.4 19.8 7.9 12.3 20.8 8.7 7.8 12.1 4.9 9.1 14.4 6.0Aghada B 220 kV 17.1 32.1 13.2 16.0 37.9 16.0 13.0 20.7 8.2 12.8 26.1 10.8Aghada C 220 kV 17.1 32.1 13.2 16.0 37.9 16.0 13.0 20.7 8.2 12.8 26.1 10.8Aghada D 220 kV 11.9 22.4 9.0 13.8 23.4 9.9 11.9 19.1 7.5 13.6 21.1 8.8Ahane 110 kV 4.5 29.3 13.1 5.3 24.9 11.0 4.6 24.5 10.7 5.3 21.9 9.6Anner 110 kV 2.7 11.6 6.0 4.0 7.6 3.6 2.8 10.4 5.3 4.0 7.3 3.4Ardnacrusha 110 kV 5.5 39.2 16.5 6.7 41.8 17.6 5.1 29.9 12.5 6.1 34.3 14.5Arigna 110 kV 4.8 17.3 7.2 6.0 13.2 5.6 4.9 15.6 6.3 6.0 12.1 5.1Arklow 110 kV 8.3 21.0 8.2 9.1 25.7 10.3 8.5 18.6 7.0 9.3 23.0 9.1Arklow 220 kV 9.0 19.4 7.8 10.2 18.1 7.6 9.2 16.1 6.3 10.4 15.8 6.5Arva 110 kV 3.2 19.3 9.0 4.5 15.4 7.0 3.4 18.2 8.2 4.6 14.7 6.6Athea 110 kV 15.8 19.4 6.8 16.1 16.3 6.3 15.9 18.1 6.1 16.2 15.9 6.0Athlone 110 kV 4.6 22.1 9.8 5.7 16.1 7.0 4.8 20.6 8.9 5.9 15.4 6.7Athy 110 kV 3.2 14.6 7.3 4.3 11.7 5.5 3.4 12.9 6.2 4.4 10.7 5.0E-17

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Aughinish 110 kV 7.8 24.1 9.6 9.8 26.2 10.5 8.0 22.6 8.8 10.1 25.7 10.2Balgriffin 110 kV 15.0 39.2 15.2 8.8 40.6 16.6 12.6 28.4 11.0 8.8 31.8 13.0Balgriffin 220 kV 15.0 41.0 16.9 6.8 44.7 18.9 11.4 23.1 9.4 7.4 28.0 11.8Ballakelly 220 kV 10.1 51.3 20.8 10.0 48.5 20.2 11.1 43.5 17.2 10.7 40.9 16.9Ballybeg 110 kV 8.9 15.9 6.4 9.3 18.8 7.6 9.0 14.4 5.6 9.4 17.3 6.9Ballycummin 110 kV 4.7 29.2 12.9 5.9 25.4 11.0 4.8 24.6 10.6 5.9 22.6 9.8Ballydine 110 kV 2.9 13.4 6.8 4.2 10.1 4.8 3.0 11.8 5.8 4.2 9.4 4.4Ballylickey 110 kV 2.8 6.2 3.1 4.1 4.1 1.9 2.9 5.8 2.8 4.1 3.9 1.8Ballyragget 110 kV 5.4 16.9 7.5 6.5 11.8 5.1 4.9 13.1 5.8 6.0 10.1 4.4Ballyvouskill 110 kV 15.6 20.0 6.3 12.1 20.4 7.4 15.2 18.8 5.7 12.0 19.4 6.9Ballyvouskill 220 kV 9.7 22.3 8.6 10.4 21.8 8.9 10.2 19.0 7.1 10.7 19.3 7.8Ballywater 110 kV 4.3 13.0 5.6 3.1 11.9 5.9 4.5 11.8 4.9 3.2 11.1 5.4Baltrasna 110 kV 6.0 23.8 10.2 7.3 19.0 8.0 6.1 21.0 8.9 7.2 17.5 7.3Bandon 110 kV 3.1 12.9 6.3 4.5 11.2 5.1 3.4 11.5 5.4 4.6 10.4 4.7Banoge 110 kV 3.6 12.8 5.9 4.6 11.4 5.2 3.8 11.6 5.2 4.7 10.6 4.8Barnahely A 110 kV 4.4 27.7 12.3 5.2 28.9 12.8 4.8 22.0 9.5 5.4 24.1 10.5Barnahely B 110 kV 6.4 29.2 12.0 7.1 29.5 12.3 6.5 23.1 9.3 7.1 24.6 10.2Baroda 110 kV 3.9 18.7 8.8 4.8 21.7 9.9 4.1 16.2 7.4 5.0 19.4 8.7Barrymore 110 kV 3.5 16.3 7.9 4.8 9.9 4.5 3.7 13.9 6.5 4.8 9.0 4.1Bellacorick 110 kV 3.1 8.7 4.1 4.2 8.7 4.0 2.8 6.5 3.1 3.7 7.1 3.4Binbane 110 kV 3.9 10.5 4.2 5.6 9.6 4.1 4.0 9.7 3.7 5.6 9.2 3.8Blake 110 kV 3.8 17.2 8.2 5.0 12.2 5.5 4.0 15.2 7.0 5.1 11.3 5.1Boggeragh 110 kV 15.0 13.9 5.3 11.9 8.8 3.5 15.2 13.1 4.9 12.0 8.4 3.3Booltiagh 110 kV 6.0 18.0 7.7 7.6 15.1 6.3 6.1 16.3 6.8 7.7 14.3 5.9Bracklone 110 kV 3.3 15.5 7.6 4.4 10.8 5.0 3.5 13.8 6.6 4.5 10.1 4.6Brinny A 110 kV 3.0 11.4 5.6 4.3 9.4 4.4 3.2 10.3 4.9 4.5 8.8 4.0Brinny B 110 kV 3.0 11.5 5.7 4.3 9.5 4.4 3.2 10.3 4.9 4.5 8.8 4.1Bunbeg 110 kV 3.0 4.3 2.0 4.3 2.8 1.3 3.0 4.0 1.9 4.3 2.7 1.2Butlerstown 110 kV 4.3 23.3 10.4 4.6 22.3 10.2 4.3 17.9 7.9 4.6 18.5 8.4Cahir 110 kV 3.0 15.3 7.7 4.3 9.5 4.5 3.1 14.1 6.9 4.4 9.6 4.5Carrick-on-Shannon 110 kV 4.2 27.3 11.9 5.0 29.4 13.0 4.4 23.7 9.9 5.2 25.9 11.2Carlow 110 kV 5.2 21.7 9.6 5.9 21.2 9.3 5.3 17.4 7.5 6.0 18.1 7.8Carrickmines A 110 kV 23.2 35.8 14.5 19.8 37.7 15.2 20.2 29.9 11.7 18.4 32.7 13.0Carrickmines B 110 kV 32.3 32.9 14.2 27.1 36.5 15.5 26.2 27.6 11.3 24.0 31.7 13.1Carrickmines 220 kV 14.8 50.2 20.4 10.5 57.7 23.7 13.2 34.2 13.5 10.7 41.8 17.0Carrigadrohid 110 kV 4.3 23.9 10.5 5.4 21.3 9.3 4.7 20.2 8.5 5.6 18.9 8.2Carrowbeg 110 kV 2.8 6.7 3.4 4.1 6.1 2.9 2.7 5.4 2.7 4.0 5.2 2.5E-18

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Cashla 110 kV 6.0 37.4 15.7 6.9 46.6 19.6 6.0 30.2 12.4 6.7 38.5 16.0Cashla 220 kV 7.6 27.4 11.2 9.7 26.9 11.2 7.5 20.0 8.1 9.3 21.3 8.8Castlebar 110 kV 3.5 13.4 6.2 4.7 12.3 5.5 3.2 9.3 4.3 4.5 9.0 4.1Castledockrill 110 kV 7.0 20.0 7.4 4.5 21.6 9.4 7.2 17.7 6.4 4.7 19.5 8.3Castlefarm A 110 kV 7.0 22.9 9.3 8.6 24.1 9.8 7.3 21.4 8.5 8.8 23.5 9.5Castlefarm B 110 kV 7.0 22.8 9.2 8.6 24.0 9.8 7.3 21.4 8.4 8.8 23.5 9.4Castleview 110 kV 3.7 27.7 12.9 4.5 20.5 9.4 4.1 22.0 9.8 4.7 17.4 7.9Cathaleen's Fall 110 kV 4.9 24.7 9.4 5.9 22.5 9.3 4.3 19.6 7.4 5.4 19.8 8.2Cauteen 110 kV 3.1 14.5 7.2 4.3 8.3 3.9 3.3 13.7 6.6 4.3 7.9 3.7Mid-Cavan 220 kV 11.1 37.2 15.3 10.3 35.9 15.0 11.6 32.4 13.1 10.8 31.1 12.9Mid-Cavan 400 kV 14.3 26.6 11.2 10.4 22.6 9.5 14.4 22.2 9.1 10.8 19.0 7.9Charleville 110 kV 3.5 12.9 6.0 4.8 9.5 4.3 3.7 12.0 5.3 5.0 8.9 4.0Cherrywood 110 kV 10.3 25.4 10.1 8.5 26.4 10.9 10.4 22.0 8.6 8.6 23.7 9.7Clahane 110 kV 4.2 19.1 7.9 5.8 16.5 7.0 4.4 16.6 6.5 5.9 15.3 6.4Clashavoon A 110 kV 5.5 25.5 10.6 7.2 26.1 10.9 6.0 21.9 8.8 7.5 23.1 9.5Clashavoon B 110 kV 24.5 18.9 7.6 24.9 16.5 6.9 23.4 17.3 6.9 24.4 15.3 6.3Clashavoon 220 kV 9.7 23.3 9.1 10.9 21.4 8.9 10.0 19.4 7.4 11.1 18.7 7.7Cliff 110 kV 4.4 18.0 7.3 5.5 15.4 6.6 4.0 14.4 5.8 5.1 13.7 5.9Clonkeen A 110 kV 5.3 13.2 5.7 6.7 9.8 4.2 5.5 11.9 5.0 6.8 9.1 3.8Clonkeen B 110 kV 8.6 16.0 4.9 5.3 15.9 6.3 8.7 15.3 4.4 5.4 15.4 5.9Cloon 110 kV 4.3 17.0 7.8 5.4 11.9 5.3 4.4 14.9 6.6 5.5 10.8 4.8College Park 110 kV 8.5 44.9 18.0 6.6 47.4 20.2 7.9 34.3 13.7 6.6 38.3 16.2Coolroe 110 kV 3.4 20.1 9.5 4.6 19.4 8.8 3.5 16.3 7.6 4.6 16.9 7.6Coomagearlahy 110 kV 8.8 14.2 4.2 7.9 15.7 5.7 8.9 13.7 3.8 8.0 15.4 5.4Cordal 110 kV 14.4 15.6 5.9 17.1 16.1 6.4 15.1 14.2 5.3 17.6 15.1 6.0Corderry 110 kV 4.6 19.4 7.7 6.1 17.8 7.4 4.7 17.6 6.7 6.2 16.4 6.7Corduff A 110 kV 9.8 52.8 20.8 11.2 58.6 23.4 8.6 38.9 15.3 9.8 45.5 18.2Corduff B 110 kV 9.8 52.8 20.8 11.2 58.6 23.4 8.6 38.9 15.3 9.8 45.5 18.2Corduff 220 kV 16.9 65.2 26.9 15.7 73.3 31.1 11.4 30.4 12.2 11.7 38.4 15.9Corraclassy 110 kV 3.7 13.8 6.3 5.0 11.0 4.9 3.8 13.1 5.7 5.1 10.5 4.7Cow Cross 110 kV 4.0 27.7 12.5 4.7 23.5 10.7 4.5 22.0 9.6 4.9 19.9 8.9Crane 110 kV 5.8 20.6 8.1 6.1 21.1 8.9 6.1 18.2 6.9 6.3 19.2 7.9Cullenagh 110 kV 5.4 29.2 12.5 6.4 33.2 14.2 5.4 22.5 9.4 6.2 26.8 11.4Cullenagh 220 kV 8.8 20.8 8.4 10.4 19.7 8.2 7.9 15.3 6.2 9.4 15.8 6.5Cunghill 110 kV 3.1 11.7 5.4 4.5 10.7 4.8 3.1 10.1 4.5 4.3 9.8 4.4Cushaling 110 kV 7.0 30.0 11.7 9.0 27.2 10.9 5.7 20.1 8.2 7.3 21.7 8.9Dallow 110 kV 3.4 11.1 5.3 4.6 7.2 3.3 3.5 10.4 4.9 4.7 6.8 3.1E-19

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Dalton 110 kV 2.8 9.3 4.7 3.9 6.3 3.0 2.9 7.8 3.9 4.0 5.7 2.7Derrybrien 110 kV 3.1 10.0 4.4 4.5 9.3 4.1 3.2 9.4 4.0 4.6 9.1 4.0Derryiron 110 kV 5.8 22.5 9.5 7.5 21.4 8.9 4.9 15.8 7.0 6.2 17.1 7.4Doon 110 kV 2.8 12.7 6.5 4.0 8.4 4.0 2.9 11.4 5.7 4.1 8.0 3.8Dromada 110 kV 9.9 16.7 5.9 6.9 13.4 5.5 10.0 15.5 5.4 7.0 13.0 5.3Drumkeen 110 kV 3.9 15.4 5.8 5.1 13.3 5.6 4.0 14.4 5.1 5.2 12.8 5.2Drumline 110 kV 3.1 17.2 8.5 4.3 14.3 6.7 3.2 15.1 7.3 4.4 13.0 6.0Drybridge 110 kV 5.3 30.8 13.4 6.4 26.2 11.2 5.5 27.3 11.6 6.5 24.0 10.2Dundalk 110 kV 3.5 18.6 8.9 4.6 17.3 7.9 3.6 17.6 8.2 4.7 16.1 7.3Dunfirth 110 kV 4.6 14.4 6.5 5.9 9.5 4.2 4.7 12.7 5.7 5.9 8.8 3.9Dungarvan 110 kV 3.6 12.1 5.8 4.7 7.7 3.5 3.8 10.6 5.0 4.8 7.1 3.2Dunmanway 110 kV 3.9 16.3 7.3 5.5 14.5 6.4 4.3 14.6 6.3 5.7 13.4 5.8Dunstown 220 kV 11.4 49.6 20.0 10.9 46.7 19.4 11.9 36.0 14.2 11.4 36.8 15.2Dunstown 400 kV 17.1 17.1 7.4 13.0 15.4 6.5 16.4 13.4 5.6 13.1 12.8 5.4Ennis 110 kV 3.6 24.3 11.4 5.0 21.8 9.8 3.8 21.4 9.7 5.1 20.1 8.9Fassaroe A 110 kV 5.1 17.7 7.9 5.5 13.1 5.8 5.3 15.9 6.9 5.6 12.3 5.4Fassaroe B 110 kV 5.2 18.2 8.0 5.6 13.6 6.0 5.4 16.3 7.0 5.7 12.7 5.5Finnstown 110 kV 17.4 42.8 16.8 8.2 45.1 18.6 15.9 35.1 13.4 8.5 38.5 15.7Finnstown 220 kV 12.4 60.1 24.1 10.9 60.2 24.9 11.9 39.4 15.4 11.1 43.3 17.7Finglas 220 kV 18.4 64.6 27.0 17.1 76.0 32.6 11.4 29.2 11.7 11.7 38.0 15.8Kildonan 110 kV 6.5 34.2 14.4 5.5 29.1 12.9 6.4 27.6 11.5 5.5 25.2 11.1Finglas A 110 kV 26.1 44.3 18.3 19.2 48.1 19.4 16.9 31.0 12.1 15.3 36.3 14.4Finglas B 110 kV 38.2 38.0 16.9 33.1 46.1 20.2 21.5 26.4 10.6 21.4 33.7 13.7Flagford 110 kV 4.5 29.4 12.6 5.4 35.4 15.3 4.6 25.1 10.4 5.6 30.5 13.0Flagford 220 kV 7.4 19.4 8.0 9.7 18.0 7.5 7.5 17.0 6.8 9.7 16.1 6.7Galway 110 kV 4.2 25.5 11.7 4.9 27.3 12.3 4.3 21.6 9.6 5.0 23.8 10.6Garrow A 110 kV 14.1 19.1 5.9 10.4 19.6 7.1 13.9 18.0 5.3 10.4 18.8 6.7Garrow B 110 kV 14.1 19.1 5.9 10.4 19.6 7.1 13.9 18.0 5.3 10.4 18.8 6.7Garvagh 110 kV 5.1 15.3 5.8 6.8 13.8 5.6 5.2 14.0 5.2 6.9 12.8 5.1Gilra 110 kV 3.0 13.6 6.7 4.0 10.9 5.1 3.1 12.2 5.8 4.0 9.9 4.7Glanagow 220 kV 17.4 32.5 13.4 17.3 38.6 16.6 13.6 21.4 8.5 13.8 27.0 11.2Glanlee 110 kV 8.6 13.8 4.1 7.3 15.1 5.5 8.7 13.3 3.7 7.4 14.8 5.2Glasmore 110 kV 4.4 16.7 7.7 4.9 11.5 5.2 4.7 14.3 6.4 5.1 10.7 4.8Glenlara A 110 kV 3.0 5.9 2.7 4.5 5.2 2.3 3.1 5.8 2.5 4.7 5.1 2.3Glenlara B 110 kV 13.2 14.1 5.4 10.8 9.5 3.8 12.3 12.0 4.5 10.6 8.7 3.5Glenree 110 kV 3.5 10.1 4.6 4.6 8.4 3.8 3.0 7.5 3.5 3.9 7.0 3.3Golagh 110 kV 3.0 10.0 4.5 4.1 6.6 3.1 3.1 9.1 3.9 4.1 6.2 2.8E-20

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Gorman 110 kV 5.8 33.7 14.4 6.9 37.4 15.8 6.1 30.4 12.5 7.2 33.9 14.1Gorman 220 kV 8.6 30.5 12.6 9.8 24.3 10.2 9.1 26.2 10.5 10.2 21.6 9.0Gortawee 110 kV 3.9 13.4 6.1 5.5 11.3 5.0 4.0 12.6 5.6 5.6 11.0 4.8Grange 110 kV 11.7 36.6 14.3 6.5 37.0 15.8 10.8 27.0 10.6 6.9 29.5 12.5Grange Castle 110 kV 18.0 43.2 17.0 8.7 46.0 18.8 16.3 35.3 13.6 8.9 39.2 15.8Great Island 110 kV 6.8 35.6 14.2 7.6 44.4 18.2 5.6 23.2 9.5 6.1 30.7 12.9Great Island 220 kV 10.0 25.2 10.1 11.7 25.7 10.7 8.1 17.0 6.8 9.6 19.4 8.0Griffinrath 110 kV 6.8 25.8 10.8 7.3 25.8 10.9 7.1 22.1 9.1 7.5 22.9 9.5Hartnett's Cross 110 kV 3.6 17.6 8.2 4.6 13.9 6.3 3.9 15.3 6.9 4.8 12.6 5.7Huntstown A 220 kV 17.4 62.1 25.7 14.2 72.2 30.2 11.1 28.4 11.4 10.9 36.8 15.2Huntstown B 220 kV 15.8 58.0 23.8 11.7 64.5 26.6 11.2 28.1 11.3 10.2 35.2 14.5Ikerrin 110 kV 4.5 10.4 4.8 6.0 6.9 3.0 4.6 9.6 4.4 6.1 6.6 2.9Inchicore A 220 kV 14.0 52.6 21.3 8.8 57.8 23.8 12.7 35.3 13.9 9.4 41.8 17.0Inchicore B 220 kV 14.2 47.5 19.5 12.1 49.9 20.8 12.5 32.0 12.8 11.6 36.4 15.0Inchicore A 110 kV 31.6 38.3 16.5 27.7 47.4 20.1 24.8 31.6 12.8 23.4 39.9 16.4Inchicore B 110 kV 29.8 47.4 20.1 23.8 58.0 24.0 23.1 38.1 15.2 20.5 47.7 19.2Inniscarra 110 kV 3.4 19.5 9.2 4.6 18.3 8.3 3.5 15.8 7.3 4.5 15.9 7.2Irishtown 220 kV 16.3 55.1 22.6 13.7 64.4 26.8 13.7 36.0 14.2 12.8 44.9 18.4Keelderry 110 kV 3.3 8.7 3.8 4.9 7.3 3.2 3.4 8.2 3.5 5.0 7.1 3.1Kellis 110 kV 6.0 24.0 10.3 7.2 27.4 11.6 6.2 19.1 8.0 7.3 22.7 9.5Kellis 220 kV 8.0 20.1 8.3 9.9 17.1 7.2 7.9 15.9 6.5 9.7 14.6 6.1Kilbarry 110 kV 6.0 48.4 19.5 6.8 47.9 20.0 6.1 33.8 13.5 6.7 36.7 15.3Kilkenny 110 kV 4.8 21.9 9.9 6.5 16.9 7.3 3.8 13.2 6.2 5.1 12.5 5.6Killonan 110 kV 5.5 44.7 18.8 6.6 52.7 22.2 5.5 35.4 14.5 6.4 43.2 18.1Killonan 220 kV 5.5 24.2 10.4 7.5 23.8 10.1 5.8 19.8 8.2 7.6 20.4 8.5Killoteran 110 kV 4.7 25.5 11.2 4.7 25.4 11.5 4.6 19.1 8.3 4.6 20.5 9.3Kilmahud 110 kV 13.5 40.2 15.7 6.7 41.8 17.8 13.0 33.2 12.7 7.0 36.0 15.0Kilmore 110 kV 17.7 41.1 16.1 11.9 44.0 17.5 13.9 29.3 11.4 11.1 33.8 13.5Kilpaddoge 110 kV 12.9 57.6 21.0 14.4 57.9 22.5 11.4 42.9 15.2 12.9 46.3 17.7Kilpaddoge 220 kV 15.6 57.3 23.2 14.5 66.1 27.7 11.8 32.3 12.5 12.0 41.1 16.7Kilteel 110 kV 4.3 16.9 7.8 5.4 15.3 6.8 4.4 14.8 6.7 5.5 14.2 6.3Kiltoy 110 kV 3.8 14.1 5.6 4.9 11.4 4.9 3.9 13.2 4.9 5.0 10.9 4.6Kinnegad 110 kV 4.7 18.9 8.5 6.3 16.7 7.2 4.5 15.3 6.9 6.0 14.6 6.3Kishkeam 110 kV 24.2 20.4 8.1 22.7 19.4 7.9 24.0 17.9 7.1 22.7 17.7 7.2Kishkeam 220 kV 9.8 22.1 8.7 10.8 20.8 8.6 10.3 18.7 7.1 11.1 18.3 7.5Knockacummer 110 kV 8.5 11.8 4.6 6.0 7.9 3.4 8.6 10.3 4.0 6.1 7.3 3.1E-21

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Knockanure A 110 kV 27.6 25.8 10.2 23.0 22.2 9.0 25.3 23.3 8.8 22.2 20.7 8.2Knockanure B 110 kV 4.8 22.0 9.0 6.1 17.1 7.2 5.1 19.1 7.5 6.3 15.6 6.5Knockanure 220 kV 10.9 33.0 13.1 10.7 27.7 11.5 11.1 24.4 9.5 10.9 22.7 9.3Knockearagh 110 kV 5.4 13.1 5.5 7.4 11.4 4.7 5.4 11.7 4.8 7.4 10.6 4.4Knocknagashel 110 kV 12.0 14.9 5.5 9.7 8.4 3.4 12.2 13.9 5.1 9.8 7.9 3.2Knockraha A 110 kV 7.9 57.8 22.4 8.8 55.8 22.5 19.3 14.6 5.8 21.6 15.0 6.1Knockraha B 110 kV 7.9 57.8 22.4 8.8 55.8 22.5 7.8 38.7 14.9 8.5 39.8 16.0Knockraha A 220 kV 8.7 31.2 12.3 9.7 33.1 13.6 8.1 21.4 8.4 9.1 24.2 9.9Knockraha B 220 kV 12.0 24.6 9.9 12.3 24.1 10.1 11.2 18.0 7.2 11.5 18.9 7.8Knockumber 110 kV 3.5 17.1 8.2 4.4 13.4 6.2 3.6 16.1 7.6 4.5 12.8 5.9Lanesboro 110 kV 3.7 23.6 10.8 5.1 23.8 10.6 3.9 22.3 9.9 5.3 23.5 10.3Laois 110 kV 5.9 31.2 13.4 6.4 39.1 16.8 6.3 25.9 10.8 6.7 33.1 13.9Laois 400 kV 14.9 17.2 7.3 14.6 17.6 7.5 14.5 13.6 5.6 14.5 14.7 6.2Letterkenny 110 kV 4.4 18.6 6.9 5.5 17.3 7.1 4.5 17.2 5.9 5.6 16.3 6.5Liberty Street 110 kV 5.3 40.1 16.7 4.5 40.7 18.4 5.3 28.6 11.8 4.7 31.8 14.2Liberty Street 110 kV 5.2 39.9 16.7 4.3 40.3 18.4 5.3 28.5 11.8 4.6 31.6 14.2Limerick 110 kV 4.6 36.1 15.9 5.6 34.9 15.3 4.7 29.4 12.5 5.6 30.1 13.0Lisdrum 110 kV 2.7 10.1 5.2 3.8 6.4 3.1 2.8 9.7 4.9 3.9 6.5 3.1Lisheen 110 kV 3.6 7.9 3.8 5.2 5.8 2.6 3.7 7.4 3.5 5.2 5.6 2.5Lodgewood 110 kV 8.6 23.4 8.5 9.0 28.8 11.2 8.8 20.5 7.2 9.2 25.6 9.8Lodgewood 220 kV 9.2 18.5 7.4 10.7 18.1 7.5 9.1 15.0 5.9 10.5 15.4 6.3Longpoint 220 kV 11.9 22.3 9.0 14.2 23.5 9.9 12.0 19.1 7.5 14.1 21.2 8.9Louth 110 kV 9.9 49.5 19.1 10.7 61.1 24.2 10.4 44.6 16.6 11.1 54.0 21.1Louth 220 kV 10.4 53.6 21.7 11.2 50.7 21.2 11.4 45.0 17.8 11.9 42.4 17.6Macetown 110 kV 6.9 37.9 15.8 6.9 36.4 15.4 6.7 30.0 12.3 6.8 30.6 12.9Macroom 110 kV 4.5 25.1 10.9 5.7 23.0 10.0 4.9 21.2 8.8 5.9 20.4 8.7Mallow 110 kV 3.4 13.3 6.4 5.1 11.6 5.2 3.6 12.0 5.5 5.2 10.8 4.8Marina 110 kV 6.3 46.5 18.6 7.0 49.9 20.7 6.1 31.9 12.8 6.6 37.4 15.6Maynooth A 110 kV 10.9 34.9 13.8 11.7 42.4 16.9 10.9 28.9 11.2 11.7 35.7 14.2Maynooth B 110 kV 8.2 41.7 16.9 10.2 39.3 15.9 8.5 33.8 13.4 10.2 33.7 13.5Maynooth A 220 kV 10.5 50.3 20.2 10.7 45.3 18.9 10.9 36.0 14.1 11.1 35.5 14.6Maynooth B 220 kV 10.6 56.5 22.6 10.6 50.8 21.1 10.8 38.0 14.9 10.9 38.2 15.7Meath Hill 110 kV 3.7 20.2 9.4 5.0 17.1 7.7 3.8 19.1 8.7 5.1 16.3 7.2Meentycat 110 kV 3.7 12.8 4.9 5.2 11.3 4.8 3.8 12.2 4.4 5.3 11.1 4.5Midleton 110 kV 3.4 22.7 10.8 4.6 18.5 8.5 3.8 18.5 8.5 4.8 16.1 7.3Moneypoint G1 400 kV 23.7 29.0 13.0 20.9 30.2 13.6 17.5 19.5 8.1 17.5 22.3 9.6Moneypoint G2 400 kV 33.2 11.0 5.3 24.9 11.3 5.2 18.8 6.1 2.7 18.2 7.3 3.2E-22

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Moneypoint G3 400 kV 23.7 29.0 13.0 20.9 30.2 13.6 17.5 19.5 8.1 17.5 22.3 9.6Moneypoint 110 kV 13.9 24.6 9.6 16.0 24.1 9.6 12.9 21.0 8.1 15.0 21.3 8.4Moneypoint A 220 kV 13.0 30.2 12.3 10.2 27.1 11.3 10.2 18.6 7.4 9.3 19.6 8.1Moneypoint B 220 kV 15.7 53.4 21.8 12.7 61.2 25.3 12.3 31.6 12.3 11.4 39.7 16.1Moneteen 110 kV 5.0 24.7 10.8 6.2 19.5 8.4 5.1 21.5 9.2 6.2 17.7 7.6Monread 110 kV 4.0 16.4 7.7 4.9 15.7 7.1 4.1 14.4 6.6 5.0 14.4 6.5Moy 110 kV 4.0 10.6 4.7 5.2 11.4 5.0 2.9 6.7 3.2 3.6 8.1 3.9Muingnaminnane 110 kV 3.9 16.9 7.2 3.1 12.6 6.2 - - - - - -Mullagharlin 110 kV 3.6 19.5 9.3 4.6 18.0 8.3 3.7 18.5 8.5 4.7 16.2 7.3Mullingar 110 kV 3.5 14.8 7.2 4.9 14.7 6.6 3.5 13.1 6.3 4.9 13.6 6.1Mulreavy 110 kV 7.4 12.5 4.8 7.4 6.3 2.6 7.1 11.1 4.2 7.3 5.8 2.4Mungret A 110 kV 4.7 23.2 10.3 5.9 17.9 7.8 4.8 20.2 8.8 5.9 16.3 7.1Mungret B 110 kV 4.7 23.2 10.3 5.8 18.0 7.8 4.8 20.3 8.8 5.9 16.4 7.1Nangor 110 kV 14.8 41.2 16.1 7.0 42.9 18.1 14.0 33.9 13.0 7.3 36.8 15.3Navan 110 kV 4.9 28.5 12.6 5.9 28.3 12.3 5.2 26.0 11.1 6.1 26.1 11.2Nenagh 110 kV 2.6 7.1 3.7 3.8 4.4 2.1 2.7 6.5 3.4 3.8 4.1 2.0Newbridge 110 kV 4.0 22.5 10.4 4.9 21.7 9.8 4.3 19.0 8.5 5.1 19.3 8.6Nore 110 kV 4.7 21.0 9.5 5.4 15.8 7.0 3.6 12.4 5.9 4.4 11.5 5.3North Wall 220 kV 16.9 58.8 24.2 9.5 61.8 25.3 11.2 27.5 11.0 9.2 33.7 13.9Oldcourt A 110 kV 3.6 22.4 10.5 4.4 17.6 8.1 4.0 18.4 8.3 4.5 15.3 7.0Oldcourt B 110 kV 3.6 22.6 10.6 4.4 17.8 8.2 4.0 18.5 8.4 4.6 15.4 7.0Oldstreet 220 kV 15.6 29.3 12.3 12.9 30.3 12.7 12.8 19.0 7.8 11.8 21.7 9.1Oldstreet 400 kV 15.9 23.0 9.8 10.9 19.8 8.3 13.5 16.8 6.9 10.7 15.9 6.6Oughtragh 110 kV 3.7 10.3 4.7 4.9 6.8 3.0 3.7 9.2 4.1 4.9 6.3 2.8Platin 110 kV 4.7 27.3 12.3 5.5 21.0 9.3 4.9 24.4 10.7 5.6 19.6 8.6Pollaphuca 110 kV 3.2 6.2 3.1 4.7 5.5 2.5 2.7 4.7 2.4 4.0 4.7 2.3Poolbeg A 110 kV 26.2 32.8 13.7 21.9 40.1 16.5 21.5 27.5 11.0 19.4 34.2 13.8Poolbeg B 110 kV 26.1 32.7 13.7 21.9 40.0 16.4 21.5 27.4 11.0 19.4 34.2 13.8Poolbeg A 220 kV 17.4 58.8 24.4 10.5 65.2 26.6 11.5 27.7 11.2 9.7 34.9 14.4Poolbeg B 220 kV 14.7 46.4 19.2 13.1 50.4 21.1 12.5 31.2 12.5 12.1 36.4 15.1Portlaoise 110 kV 4.3 26.5 12.1 5.3 22.8 10.2 4.7 22.7 9.9 5.5 20.5 9.0Prospect 220 kV 11.7 40.7 16.2 10.0 36.7 15.2 9.8 24.3 9.5 9.3 25.7 10.6Raffeen 220 kV 15.7 32.1 13.0 13.4 37.4 15.5 12.7 21.2 8.4 11.8 26.4 10.8Raffeen A 110 kV 5.3 33.9 14.3 6.1 39.9 17.0 5.7 26.0 10.7 6.3 31.7 13.4Raffeen B 110 kV 8.0 35.4 13.9 8.9 41.2 16.6 7.8 27.0 10.5 8.5 32.7 13.2Ralappane 110 kV 10.0 45.6 17.1 10.3 39.7 15.7 9.6 35.5 12.9 10.0 33.3 13.0Rathkeale 110 kV 3.5 16.0 7.6 4.6 9.8 4.5 3.6 13.9 6.5 4.6 8.9 4.1E-23

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Ratrussan 110 kV 3.4 15.6 6.7 4.5 17.3 7.7 3.5 15.1 6.2 4.6 17.1 7.4Richmond A 110 kV 2.9 10.8 5.5 4.0 7.7 3.6 3.0 10.2 5.0 4.1 7.4 3.5Richmond B 110 kV 2.9 10.7 5.4 4.2 10.1 4.7 3.0 10.1 5.0 4.3 9.7 4.5Rinawade 110 kV 4.9 24.2 10.8 6.0 17.3 7.5 5.2 20.9 9.1 6.1 15.8 6.8Ringaskiddy 110 kV 5.6 27.5 11.6 6.0 26.5 11.4 5.8 22.0 9.1 6.1 22.4 9.5Ryebrook 110 kV 5.3 29.8 13.1 6.0 20.7 9.0 5.4 24.7 10.6 6.1 18.6 8.0Salthill 110 kV 3.8 22.1 10.4 3.6 22.3 10.8 3.9 19.0 8.6 3.8 19.8 9.4Screeb 110 kV 3.3 4.9 2.5 4.3 3.0 1.4 3.3 4.6 2.3 4.3 2.9 1.4Sealrock 110 kV 7.5 23.6 9.4 9.2 25.7 10.4 7.8 22.1 8.6 9.5 25.1 10.0Sealrock 110 kV 7.5 23.6 9.4 9.2 25.7 10.4 7.8 22.1 8.6 9.5 25.1 10.0Shankill 110 kV 3.3 17.6 8.0 4.5 16.1 7.3 3.4 16.8 7.4 4.6 15.7 7.0Shannonbridge 110 kV 5.8 38.9 15.9 7.4 43.8 18.0 6.2 36.6 14.3 7.9 41.9 16.9Shannonbridge 220 kV 7.0 17.5 7.4 9.2 15.4 6.5 7.4 15.7 6.4 9.6 14.2 5.9Shellybanks A 220 kV 16.9 58.6 24.2 10.4 65.1 26.6 11.4 27.7 11.1 9.7 34.9 14.4Shellybanks B 220 kV 15.6 53.6 21.8 12.7 62.4 25.8 13.1 34.9 13.8 12.0 43.5 17.8Singland 110 kV 5.5 36.2 15.4 6.5 34.8 14.8 5.3 28.9 12.0 6.2 29.5 12.5Sligo 110 kV 3.6 20.3 8.9 4.7 19.3 8.6 3.7 17.9 7.5 4.7 17.6 7.7Somerset 110 kV 2.9 15.7 7.8 4.0 10.8 5.1 3.0 14.6 7.0 4.0 10.1 4.7Sorne Hill 110 kV 3.3 6.3 2.6 3.9 7.5 3.4 3.3 6.1 2.4 4.0 7.3 3.2Srananagh 110 kV 4.5 25.4 10.4 5.7 27.6 11.7 4.7 22.3 8.7 5.8 24.7 10.2Srananagh 220 kV 7.2 11.8 4.9 9.8 9.7 4.0 7.2 10.6 4.3 9.8 8.9 3.7Stevenstown 110 kV 4.2 13.4 6.3 4.7 8.8 4.0 4.5 11.9 5.4 4.9 8.4 3.8Stratford 110 kV 3.3 9.2 4.6 4.3 7.1 3.3 3.1 7.5 3.7 4.1 6.3 3.0Tynagh 110 kV 6.5 23.4 9.9 2.3 19.3 10.5 6.7 20.5 8.5 2.5 17.8 9.5Tarbert 110 kV 34.6 45.1 19.3 36.4 42.9 19.0 20.7 28.4 11.1 23.9 31.6 13.0Tarbert 220 kV 15.8 56.1 22.7 15.6 64.4 27.2 11.4 30.6 11.8 11.9 39.0 15.9Tawnaghmore 110 kV 3.8 8.6 3.9 5.1 8.7 3.9 2.7 5.5 2.7 3.6 6.3 3.0Tawnaghmore 110 kV 3.9 8.8 4.0 5.2 9.0 4.0 2.7 5.5 2.7 3.6 6.4 3.1Thornsberry 110 kV 4.3 15.5 7.0 5.8 14.0 6.1 4.3 12.3 5.6 5.6 12.0 5.3Thurles 110 kV 3.9 10.2 4.8 6.0 8.7 3.8 4.1 9.6 4.4 6.1 8.7 3.8Tievebrack 110 kV 4.5 9.7 3.9 6.0 7.4 3.1 4.6 9.0 3.5 6.0 7.0 2.9Tipperary 110 kV 2.8 12.1 6.2 4.0 7.1 3.4 2.9 11.3 5.6 4.1 6.8 3.2Tonroe 110 kV 3.4 10.5 5.0 4.4 8.7 4.0 2.8 6.3 3.1 3.9 4.1 2.0Trabeg 110 kV 6.0 45.1 18.2 6.1 47.7 20.2 6.0 31.5 12.6 6.1 36.3 15.3Tralee 110 kV 5.0 24.1 9.6 6.4 19.2 8.0 4.8 19.5 7.6 6.1 17.2 7.1Trien A 110 kV 4.6 20.4 8.3 6.3 17.2 7.2 4.9 17.9 6.9 6.4 15.9 6.6Trien B 110 kV 15.9 20.4 7.5 12.9 14.6 5.7 15.7 18.7 6.7 12.9 13.7 5.3E-24

TRANSMISSION FORECAST STATEMENT 2010-2016Table E-4 Short Circuit Currents for Maximum and Minimum Demand in 2016 (continued)BusWinter Peak 2016 Summer Valley 2016Three-Phase Single-Phase Three-Phase Single-PhaseX/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]X/RRatioPeakMake[kA]TotRMSBreak[kA]Trillick 110 kV 3.3 6.9 2.8 4.0 7.4 3.3 3.4 6.6 2.6 4.1 7.2 3.1Tullabrack 110 kV 6.5 16.9 7.2 7.2 13.1 5.5 6.6 15.0 6.2 7.3 12.0 5.0Turlough Hill 220 kV 11.2 32.1 12.9 12.5 27.9 11.7 11.4 25.5 10.1 12.6 23.9 10.0Tynagh 220 kV 14.9 32.2 13.2 17.0 34.9 15.1 10.1 17.7 7.2 11.4 21.8 9.1Waterford 110 kV 5.5 29.1 12.3 5.9 29.0 12.5 5.0 21.0 8.9 5.5 22.8 9.9Wexford 110 kV 3.8 14.7 6.4 5.1 13.4 5.9 4.1 13.0 5.4 5.3 12.5 5.4Whitegate 110 kV 4.3 22.0 9.9 5.1 22.9 10.2 4.5 17.8 7.9 5.3 19.3 8.5Woodland 220 kV 12.9 61.0 24.7 11.9 56.8 23.7 12.1 36.1 14.4 11.8 38.3 15.9Woodland 400 kV 17.3 28.2 12.2 14.2 25.7 11.0 15.8 21.5 9.0 13.9 20.3 8.6E-25

APPENDIX Fadditionalinformation onopportunities

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX FADDITIONAL INFORMATION ON OPPORTUNITIESThe transmission network is designed to provide a safe, reliable and economic transportservice for power from source to demand. The Transmission Planning Criteria (TPC) providesa planning framework by which a balance can be achieved between reliability and economy.Achieving this balance means that under certain circumstances some level of constraintswill exist in the system.The Transmission System Operator (TSO) constantly reviews system performance ascircumstances change. For example, the connection of new generation or demand to thegrid, additional to the current forecasts and assumptions, or new interconnection transfers,will alter the expected power flows. Constraints will arise if the new power flows exceedplanned grid capacity.In designing out these constraints the TSO will take account of the following:• The extent of the constraint;• The impact on system security;• The overall economics of the operation of the system;• The cost of the solution;• The lead-time of the solution.The analysis of transfer capabilities described in Chapter 8 identified a number of potentialsystem constraints that could limit power flows arising from new demand connections. Mostof these have been identified previously and are being managed by the TSO.These potential transmission constraints are presented in the table below. The first columnin each table provides a cross-reference to the ITC results tables in Chapter 8. The secondcolumn describes potentially overloaded circuits or names of stations at which low voltagespotentially occur following particular outages. The third column lists the circumstancesunder which the overloads or voltage problems occur, thereby limiting the ITC. Forconstraints for which projects have already been initiated, the final column provides thereader with the CP number of the capital project designed to relieve the constraint. This canbe cross-referenced against the detailed descriptions of the planned projects provided inSection B-2 of Appendix B.F-1

TRANSMISSION FORECAST STATEMENT 2010-2016Table F-1 List of Potential Network Constraints for which the TSO has initiated ProjectsIDPotential Overload /Voltage ProblemCircumstancesCommentP1Athlone-Shannonbridge110 kV lineOverload can occur for an outage of theLough Ree Power generation station,Cashla-Prospect 220 kV line or Cashla-Flagford 220 kV line.Capital projects CP261 and CP552relieve these constraints.P2Carrickmines T2101Carrickmines T2102Voltage InstabilityOverload can occur on either Carrickmines220/110 kV transformerfor an outage of the other. A tripmaintenanceoutage of both transformerscan lead to voltage instability.Capital projects CP483 andCP513 relieve these constraints.P3Cashla T2104Due to a limitation of ancillary equipment,an overload can occur for a tripmaintenanceoutage of both of theother Cashla 220/110 kV transformers.Capital project CP322 relievesthis constraint.F-2

APPENDIX Gstudy methodsG.2 Incremental Transfer Capability Studies for Demand

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX G STUDY METHODSG.1 INCREMENTAL TRANSFER CAPABILITY STUDIES FOR DEMANDG.1.1BackgroundTransfer limit analysis was used in this Transmission Forecast Statement (TFS) to determinethe Incremental Transfer Capability (ITC) of the grid at a number of locations on the grid.The ITC calculated is a measure of the transfer capability remaining in the physical grid forfurther commercial activity over and above already anticipated uses. It provides anindication of the flexibility of the grid to accommodate future demand increases in selectedareas without the requirement for further reinforcements.The transfer analysis is intended as a pre-feasibility indication of opportunity for increaseddemands. The method for determining ITC closely aligns with pre-feasibility studytechniques.G.1.2Planning Criteria as Applied in Transfer Limit Analysis for DemandIn previous Transmission Forecast Statements the application of planning standards for theanalyses of demand and generation was the same in all respects except for thecontingencies considered and voltage analysis. In the generation studies, trip-maintenance(N-1-1) contingencies were not considered. An assumption was made that the hypotheticalgenerator could be constrained down or off during transmission circuit maintenance.However, demands are not dispatchable, and so it is not acceptable to assume that thehypothetical demand may be constrained off during a maintenance outage. It is necessary,therefore, to assess the network performance against standards for trip-maintenancecontingencies in the analysis of increased demands. The reason voltage analysis wasperformed as part of the ITC studies is because the addition of demand is likely to impacton local voltages.G.1.3Method for Calculating Transfer Limits for Increased DemandDC loadflow techniques were used to screen for critical contingencies and thermaloverloads, followed by AC loadflow studies to confirm the results of the DC loadflows and toidentify voltage limitations. The network was also tested against voltage standards for arange of critical contingencies.Transfers were considered between the “Dublin”, “Northern Ireland” and “South”generation blocks described in Table G-1 in Section G.1.3.2 and the twenty-nine 110 kV “testnodes” selected for analysis.G-1

TRANSMISSION FORECAST STATEMENT 2010-2016The initial generator dispatches for the transfer capability studies are presented in Table D-4 in Appendix D. Generators were modelled with their maximum output equivalent to theirMaximum Continuous Rating (MCR). As wind energy is variable, it cannot be relied upon toserve demand. As such, local wind generation was switched out in the vicinity of the testnode. These dispatches, with wind generation local to the test node switched out, wereused for single contingency (N-1) studies. For N-G-1 and N-1-1 contingencies, the centrallydispatchablegeneration local to the test node was maximised to its MCR value, to create amore favourable dispatch for the maintenance case.To calculate the ITC, demand at 95% power factor was added at the test node in increasingamounts. This was balanced by an equivalent increase in generation output from existinggeneration within one of the three generation blocks. This is illustrated in Figure G-1. Incases where full capacity was reached on all generation units within a generation block, themaximum capacity was increased to allow further transfer. The limit for increased transfersfrom the generation block to the test node was established by checking the postcontingencyperformance of the grid against thermal and then voltage standards. Theprocess was then repeated for the two remaining generation blocks.Problems on the grid were not considered limiting unless they were sensitive to theincremental transfers under examination. For the purposes of the studies for this TFS thesensitivity factor used was a change in circuit loading of 5 MW or more for a 100 MWtransfer. In addition, overloads on the 220 and 400 kV networks were considered sensitiveto the transfer only if they were increased by 4 MW or more. Voltage problems wereconsidered sensitive if the voltage dropped by more than 3% for every 100 MW.To assist the reader, the information from this analysis is presented concisely by combiningthe results of the ITCs from the “Dublin”, “Northern Ireland” and “South” generation blocksto each of the 29 selected 110 kV stations. This provides an indication of the capabilitiesfor increased demand at each station. When considering single contingencies (N-1) on anintact network the minimum ITC from Dublin, Northern Ireland or the south was chosen.However, when considering trip-maintenance contingencies (N-1-1), the greater of the ITCsfrom Dublin, Northern Ireland or the south was chosen. This was based on the assumptionthat less onerous generation dispatches could be scheduled to accommodate maintenanceoutages. The results are presented in Section 8.1 of Chapter 8.G-2

TRANSMISSION FORECAST STATEMENT 2010-2016Test NodeLoadIncreased AtTest NodeGenerationIncreased InSouthOverloadedCircuit ResultingFrom TransferFigure G-1 Illustration of Incremental Transfer Capability Study Method for DemandG.1.4Example: Calculation of Capability for Demand at Shankill 110 kV StationThis section provides an example of the analysis of the capability of Shankill 110 kV stationto accommodate increased demand at summer peak 2013. The example illustrates the stepstaken towards deriving the demand opportunity at Shankill 110 kV station.The assessment was carried out by simulating the network for summer peak 2013 using thedemand forecasts presented in Table C-2 in Appendix C and the relevant generator dispatchfrom Table D-4 in Appendix D.Due to its variable nature, wind generation cannot be relied on to meet the demand at alltimes. Therefore, to prepare the model for testing the capability for additional demand atShankill, all wind generation in the north-east i.e., in the vicinity of Shankill, was switchedoff.Three sets of studies were carried out, with the extra demand in each met by increasinggeneration in one or other of the “Dublin”, “Northern Ireland” and “South” generationblocks. For each study in turn, the DC loadflow screening analysis was used to add a testdemand to Shankill 110 kV station and to vary its size between zero and 100 MW. Anequivalent amount of generation was increased in each generation block in order to meetthe increased demand at Shankill, which set up incremental power transfers between eachgeneration block and Shankill. The analysis tested all combination-pairs of circuit andG-3

TRANSMISSION FORECAST STATEMENT 2010-2016generator outages and identified the most restrictive outage combinations and recorded thelevel of extra demand at which the network went outside standards.The 25 worst combinations were then more closely checked in AC loadflow studies. In thisexample, regardless of whether the extra demand was supplied from Dublin, NorthernIreland or the south, an outage of the Ratrussan-Shankill 110 kV line during themaintenance outage of the Arva-Shankill No. 2 110 kV line would result in a 10% overload onthe Arva-Shankill No. 1 110 kV line when the demand at Shankill was increased by 90 MW.This was therefore the limit of additional demand permissible at Shankill taking account ofthermal overload standards.The network was next tested against voltage standards with the 90 MW of additionaldemand modelled at Shankill. All possible circuit and generator outage combinations weresimulated and voltages checked. The analysis showed that the system remained withinvoltage standards with the additional demand connected at Shankill. As such, the limit ofadditional demand permissible at Shankill 110 kV station is 90 MW for summer peak 2013.G-4

APPENDIX Habbreviationsand glossaryH.1 AbbreviationsH.2 Glossary

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX H ABBREVIATIONS AND GLOSSARYH.1 ABBREVIATIONSCCGTCERCHPDODSMDSOESBESRIGARHFOHVDCITCLFGMCRMECMVANINTCNIEp.u.PSTRESRMSSEMSONICombined Cycle Gas TurbineCommission for Energy RegulationCombined Heat and PowerDistillate OilDemand Side ManagementDistribution System OperatorElectricity Supply BoardEconomic and Social Research InstituteGeneration Adequacy ReportHeavy Fuel OilHigh Voltage Direct CurrentIncremental Transfer CapabilityLand Fill GasMaximum Continuous RatingMaximum Export CapacityMegaVolt-AmperesNorthern IrelandNet Transfer CapacityNorthern Ireland ElectricityPer UnitPhase Shifting TransformerRenewable Energy SchemesRoot Mean SquareSingle Electricity MarketSystem Operator Northern IrelandH-1

TRANSMISSION FORECAST STATEMENT 2010-2016SVCSPSVTFSTRMTSOTTCWDRIWPWPDRSStatic Var CompensatorSummer PeakSummer ValleyTransmission Forecast StatementTransfer Reserve MarginTransmission System OperatorTotal Transfer CapacityWinter Demand Reduction IncentiveWinter PeakWinter Peak Demand Reduction SchemeH-2

TRANSMISSION FORECAST STATEMENT 2010-2016H.2 GLOSSARYActive PowerThe product of voltage and the in-phase component ofalternating current measured in MegaWatts (MW). Whencompounded with the flow of ‘reactive power’, which ismeasured in MegaVolt-Amperes Reactive (Mvar), theresultant is measured in MegaVolt-Amperes (MVA)Bord Gáis Bord Gáis Éireann (Bord Gáis) was established in 1976and is a commercial State body operating in the energyindustry. Bord Gáis is responsible for the supply,transmission and distribution of natural gas in theRepublic of Ireland.BusbarThe common connection point of two or more circuits.CapacitorAn item of plant normally utilised on the electricalnetwork to supply reactive power to loads (generallylocally) and thereby supporting the local area voltage.Commission for Energy RegulationThe Commission for Energy Regulation is the regulatorfor the electricity and natural gas sectors in Ireland. TheCER was initially established as the Commission forElectricity Regulation under the Electricity RegulationAct, 1999. The functions of the CER along with its namewere changed by the Gas (Interim Regulation) Act, 2002.Under that Act, the remit of the CER was expanded toinclude the regulation of the natural gas sector and thename changed to the Commission for Energy Regulation.CircuitAn element of the transmission system that carrieselectrical power.Combined Cycle Gas TurbineA collection of gas turbines and steam units; waste heatfrom the gas turbine(s) is passed through a heatrecovery boiler to generate steam for the steamturbine(s).Combined Heat and PowerA plant designed to produce both heat and electricalpower from a single heat source.H-3

TRANSMISSION FORECAST STATEMENT 2010-2016ConstraintA transfer limit imposed by finite network capacity.ContingencyThe unexpected failure or outage of a system component,such as a generation unit, transmission line, transformeror other electrical element. A contingency may alsoinclude multiple components, which are related bysituations leading to simultaneous component outages.Data Freeze DateThe date on which the Transmission Forecast Statementdata was effectively “frozen”. Changes to networkcharacteristics made after this date did not feature inthe analyses carried out for this Transmission ForecastStatement.Deep ReinforcementRefers to network reinforcement additional to theshallow connection that is required to allow a newgenerator or demand to operate at maximum capacity.DemandThe peak demand figures in Table S-1 in the Summaryrefer to the power that must be transported from gridconnectedgeneration stations to meet all customers'electricity requirements. These figures includetransmission losses.Demand-Side ManagementThe modification of normal demand patterns usuallythrough the use of financial incentivesEirGridEirgrid plc is the state-owned company which has beenestablished to take on the role and responsibilities ofTransmission System Operator in the Republic of Irelandas well as Market Operator of the wholesale tradingsystem.Embedded GenerationRefers to generation that is connected to the distributionsystem or at a customer’s site.Gate 2The term given to the group-processing scheme thatapplies to approximately 1,300 MW of renewablegeneration seeking connection to the transmission anddistribution systems.H-4

TRANSMISSION FORECAST STATEMENT 2010-2016Gate 3The term given to the group-processing scheme thatapplies to approximately 10,00 MW of generation seekingconnection to the transmission and distribution systems.Generation DispatchThe configuration of outputs from the connectedgeneration units.GridThe transmission system is a meshed network of highvoltage lines and cables (400 kV, 220 kV and 110 kV) forthe transmission of bulk electricity supply aroundIreland. The grid, electricity transmission network, andtransmission system are used interchangeably in thisTransmission Forecast Statement.Grid CodeThe Grid Code is designed to cover all material technicalaspects to the operation and use of the transmissionsystem. The code was prepared by the TSO (pursuant toSection 33 of the Electricity Regulation Act, 1999) andapproved by the CER. The Grid Code is available onwww.eirgrid.com.Incremental Transfer CapabilityA measure of the transfer capability remaining in thephysical grid for further commercial activity over andabove anticipated uses.InterconnectorThe tie line, facilities and equipment that connect thetransmission system of one independently suppliedtransmission network to that of another.LoadflowStudy carried out to simulate the flow of power on thetransmission system given a generation dispatch andsystem load.Maximum Continuous RatingThe maximum capacity (MVA) modified for ambienttemperature conditions that the circuit can sustainindefinitely without degradation of equipment life.The MCR of a generator is the maximum capacity (MW)modified for ambient temperature conditions that thegeneration unit can sustain indefinitely withoutdegradation of equipment life. All generation capacityH-5

TRANSMISSION FORECAST STATEMENT 2010-2016figures in this Transmission Forecast Statement aremaximum continuous ratings (defined as its MCR at10° C), expressed in exported terms i.e., generation unitoutput less the unit's own load.Maximum Export CapacityThe maximum export value (MW) provided in accordancewith the generator’s connection agreement. The MECs arecontract values which the generator chooses to cater forpeaking under certain conditions that are not normallyachievable or sustainable e.g., a CCGT plant can producegreater output at lower temperatures.NodeConnecting point at which several circuits meet. Nodeand station are used interchangeably in thisTransmission Forecast Statement.Parametric Analysis (P-V) curvesA parametric study involves a series of power flows thatmonitor the changes in one set of power flow variableswith respect to another in a systematic fashion. In thisTransmission Forecast Statement the two variables arevoltage and ITC.Per Unit (p.u.)Ratio of the actual electrical quantity to the selectedbase quantity. The base quantity used here forcalculation of per unit impedances is 100 MVA.Phase Shifting TransformerAn item of plant employed on the electrical network tocontrol the flow of active power.Power FactorThe power factor of a load is a ratio of the active powerrequirement to the reactive power requirement of theload.Reactive CompensationThe process of supplying reactive power to the network.ReactorAn item of plant employed on the electrical network toeither limit short circuit levels or prevent voltage risedepending on its installation and configuration.Shallow ConnectionShallow Connection means the local connection assetsrequired to connect a customer to the transmissionH-6

TRANSMISSION FORECAST STATEMENT 2010-2016system and which are for the specific benefit of thatparticular customer.Single Electricity MarketIn November 2004 the governments of the Repubic ofIreland and the UK announced the future establishmentof a Single Electricity Market on the island of Ireland.This will replace the current bilateral trading model inIreland and is due to commence in November 2007.Further details can be found on the All Island Projectwebsite, www.allislandproject.org.Split BusbarRefers to the busbar(s) at a given substation which isoperated electrically separated. Busbars are normallysplit to limit short circuit levels or to maintain securityof supply.Static Var CompensatorDevice which provides fast and continuous capacitiveand inductive reactive power supply to the powersystem.Summer ValleyThis is the minimum system demand. It occurs in theperiod March to September, inclusive.Summer PeakThis is the maximum system demand in the period Marchto September, inclusive.Tee ConnectionUnswitched connection into existing line between twoother stations.Total Transfer CapabilityThe total capacity available on cross-border circuitsbetween the Republic of Ireland and Northern Ireland forall flows, including emergency flows that occur after acontingency in either system.TransformerAn item of equipment connecting busbars at differentnominal voltages. (see also Phase Shifting Transformer)Transmission Interface StationA station that is a point of connection between thetransmission system and the distribution system ordirectly-connected customers.H-7

TRANSMISSION FORECAST STATEMENT 2010-2016Transmission LossesA small proportion of energy is lost mainly as heat whilsttransporting electricity on the transmission system.These losses are known as transmission losses. As theamount of energy transmitted increases, losses alsoincrease.Transmission PeakThe peak demand that is transported on the grid. Thetransmission peak includes an estimate of transmissionlosses.Transmission Planning CriteriaThe set of standards that the transmission system isdesigned to meet.UpratingTo increase the rating of a circuit. This is achieved byincreasing ground clearances and/or replacingconductor, together with any changes to terminalequipment and support structures.Winter Demand Reduction IncentiveTariffThis tariff provides large ESB customers with a financialincentive to reduce their demand over weekday peakhours in winter.Winter PeakThis is the maximum annual system demand. It occurs inthe period October to February, inclusive.Winter Peak Demand ReductionSchemeThis scheme was introduced in winter 2003/04 as anincentive to business customers to reduce consumptionduring system peak hours (5-7pm) in winter months.H-8

APPENDIX Ireferences

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX IREFERENCESThe following documents are referenced in Transmission Forecast Statement 2010-2016:• Electricity Regulation Act, 1999. This act provides the regulatory framework for theintroduction of competition in the generation and supply of electricity in Ireland.The Act provided for the establishment of the Commission for Energy Regulation(CER) (previously called the Commission for Electricity Regulation) and gave it thenecessary powers to licence and regulate the generation, distribution, transmissionand supply of electricity. Available on www.cer.ie.• Generation Adequacy Report, 2010-2016. The TSO issued this report in November2009. Its main purpose is to inform market participants, regulatory agencies andpolicy makers of the likely minimum generation capacity required to achieve anadequate supply and demand balance for electricity for the period 2010 to 2016.Available on www.eirgrid.com.• Grid Code Version 3.1, May 2008. The Grid Code covers technical aspects relating tothe operation and use of the transmission system, and to plant and apparatusconnected to the transmission system or to the distribution system. Available onwww.eirgrid.com.• Transmission Planning Criteria, October 1998. This document sets out the technicalstandards by which the adequacy of the grid is determined. Available onwww.eirgrid.com.• Statutory Instrument no. 445. These Regulations give legal effect to Directive No.96/92/EC of the European Parliament and of the Council of 19 th December 1996,concerning common rules for the internal market in electricity, not alreadyimplemented by the Electricity Regulation Act, 1999, by providing for thedesignation of a Transmission System Operator, the designation of a DistributionSystem Operator, and the unbundling of the accounts of electricity undertakings,and other matters. Available on www.cer.ie.• TSO Licence. On June 29 th 2006, the CER issued a Transmission System Operator(TSO) Licence to EirGrid plc. pursuant to Section 14(1)(e) of the ElectricityRegulation Act, 1999, as inserted by Regulation 32 of S.I. No. 445 of 2000 –European Communities (Internal Market in Electricity) Regulations 2001.• Delivering a Sustainable Energy Future for Ireland. Government White Paper onenergy policy out to 2020, published by the Department of Communications, Marineand Natural Resources in March 2007.I-1

APPENDIX Jpower flowdiagramsJ.1 Guide to the Power Flow Diagrams

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX JPOWER FLOW DIAGRAMSThis appendix presents power flow diagrams for the following cases:• Figure J-1 Summer Peak 2010,• Figure J-2 Summer Valley 2010,• Figure J-3 Winter Peak 2010/11,• Figure J-4 Summer Peak 2013,• Figure J-5 Summer Valley 2013,• Figure J-6 Winter Peak 2013/14,• Figure J-7 Summer Peak 2016,• Figure J-8 Summer Valley 2016,• Figure J-9 Winter Peak 2016/17,Note that summer cases include all projects expected to be completed by 1 st July of the yearstated and winter cases include all projects expected by 1 st December of the year stated. Assuch, the layout of the network in the power flow diagrams may not feature all projectslisted in Appendix B for a particular year as these are listed on a yearly basis.J.1 GUIDE TO THE POWER FLOW DIAGRAMSDifferent colours represent each of the voltage levels:• 400 kV red,• 275 kV (NIE Interconnector) blue,• 220 kV green,• 110 kV black.Generation connected at each bus is shown beside a symbol, with the generationdispatched in MW shown beneath the symbol. Embedded generation is shown at thetransmission bus to which it is connected through the distribution system. The East–Westinterconnector is denoted by a symbol. The magnitude of imports of power on theinterconnector is given beneath the symbol in MW.There are two values shown at both ends of each circuit. The value above the line is the MWflow and the value below the line is the Mvar flow. A positive value indicates that thedirection of flow is away from the bus; a negative value, towards the bus.The voltage, in per unit value, is displayed below each bus.J-1

134922-11-21172-18-2152-1618-1811406-016 -12-861686-12-42 421010-2733-3233-3213 -139-11-2112-5-24-202421-25 2512-25 25-25-122513-23-92392810-28-33-922-221022-10-17 1714155-15-6-21921-9 921165-451084-107-6-4 47 -73-6-24-4-1-5-74-1543224212-10-6-324-6115121-5-3-0-242 -2-10-2-011-24-24-111825-292-6-22617-7-321315-12-1613-12-131-127-22 22-2626-2828-3131-2-24-202421-41-316-6-1672 -71-4-16416110-176179-12-29430-491-9-1-52-85210-351636-17-40340-3103 -1031842-8-41-2223-7-1571594-36-943694-36-94-49-4492-2686-86-2586298-733331-33-39-7-18-1910-38-14-24-102410-2-171-31-2632-49-7-23-8-21-51312-129-1-8-2-2-321-31 312 -1-30-4-8-14997-9-8-22-13 14-9595-58859-547-0-461113-11-518-5-43327-151-4-140618-6-20-17-363237-3150-5-49611-116-201128-2224-24-35-30362427-69 69148-8-37151150-11-451150-10-461246-3233-8-20-7288136-135-4434-50-37-1952337 -3766-0-35-10-10101010-5-10-810-5-10-8-17 1715-13-15132-18-212-16-202120-20200-303015-212-2-2416-0-0-0614-157 -7-48113-79172-3255-5-56116-16-216173-33-1-1191446-021-124195212744-26-5332-2-6859-11810207293079-11-2216-31-12-10-147 -16-27-320-88-20-131117-1-8 -1-1786-7-13-1021-53-508-9-586231-20100-51513-26-3 42-20-86 86-11-13151-242-71-1213-22-18-951743271317GWE-6193836-3-2723-10-25-214628-30 3014-63-26639534108243-10-0 000-03324159-15-24-2-15-101510-11-301-14-30-10-0-0-15 1511-31331-3-15-11-261126-1-5-1050103516-44246548-9270-26-12 1222 -22-9MP-5135-1313-6 580808-4-8-1583-835-211321-16716-76-21-7-0-12-030-1337119-2-2-2474-12130494 -38-29-21-22431418-525-23017705-4-1 0-6 6372-15-0-12-963-3-6-7-27-4612-12-0-18-20-8-13163-174-30 301313-29-953-31-2LISSTRARV59MTHKERARK13BOLARI14-121 -28-8-0-03891-322-2 02-2-1216-12-3-2351-16-5IKE1316CLWGOR2 -5-51PLSDOOGAL-321-4460TBSH-13TLKCF3010-14-13RYBKKY-13-4-111-7-9-21BLK-5183216 -33-23BINDRM-49-3TAWDFR-48-148-0-5-29329-1524-24-6-42 429CDUCSH-1-134-55-31290000NEW-0TONCLN3-121-4ATH-74-2-9-11ANR-11PRO-8-220321724170-24-15-16-9-9134534-11212MAY-35420 RNW5422252-2-618417-45-31-11DSN-27INC-183KRA0CUL-0-7CDU-5-20104630-95SVNFIN2-32-213-0LIM8-13-25GAE-2CD-4924245 -57-9CHAGIL-3BEGARKCRAKLSPAMAYMCEFINFINCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLBKCUNSLIMEELETKTYSORCLGOREKNLOUMLNDDKDRY-1ADGLE6DAL10CUSTSBDERKINSKLNAV95KLS-801BLIDMYFAS-18272 MW-14RAFTBGMID-41 MW1 MW0 MW274 MW5 MWATE6SOM2 MW0 MW12 MWNWSHLPBGCA44-95WEX15-1COLBAL-6PLAWOO-48-8LOURRUKURINCGRITHGIMULISH-162 MWCORSBN3130-2FLAFLA12CDYCOSLSNCULTIPLACAHDGN-60 MWADCVW25KLN0KLNCSH4MOYAA-14DYNRATMAL-1313-5MTNMUN-17-80-8017 -17AUGSKDRUENN27DLTCBR-2 KRAKBYMRCOWMAC50CKNCLACLACGLTRLOUGTRICLHIACROCDU-86913GLA-11GOL-1324BRYRSY-22ATYBDATBRAFJ-02-862425868830 MW15 MW0 MW-87-20-191 MW15 MW0 MW0 MW1 MW0 MW118 MW13 MW0 MW0 MW0 MW260 MW3 MW21 MW13 MW0 MW3 MW1 MW141 MW2 MW10 MW137 MW3 MW243 MW2 MW1 MW93 MW291 MW14 MW5 MW35 MW6 MW20 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW75 MW9920-15275 MW14 MW15 MW1 MW195 MW0 MW1 MW0 MW4 MW21 MW4 MW161 MW2 MW0 MW243 MW11 MW5 MW23 MW13 MW16 MW26 MW17 MW17 MW0 MW20 MW0 MW13 MW1 MW5 MW57 MW-999 MW12 MW0 MW10229-102-90-242-1229-26242-10MAY-28-2915-2-525-2-5210-5-10559291-36-29051290HNLOUHNTAN5119-1913-51DSNMPMPMPWOO192100-0-3-1010BWR-0-16-544313-5-13-002-1338-8-4-6-18-1-2-38RIC-0-51310NANBRI1-13CKM-0260-260211007-1890-590-63 632217-187 188-14-29-102115-33-8-100-113241033-16-43-28-56102289143-1-151-3426-0-31-90-3-42OSTTYNMAY3118-118SHL0-256PB29392-191-65-291-59OSTFigure J-01 Power Flow Diagram Summer Peak 2010-25-12107-974215-22-1522-021-1-21-181418-1438-8-19347-347-7-874-516-5-16-0-2021248-11-48132-15-2-32-2020-2-87-888-4415244-15240-59-4360577-16-76-13-6211-7-17617-17617-4-63625-53-2255-4-41932-4568-2-670-7-27-8-2072019148-18-14641-123-42125-252-11-5250293-51-290241-2-41-5-446440-0-00-1-21212-128-615710-155-99-2020-60-211981-1016-15-5 228-40-64024-24-49-27-5818-49-132721627252748-240241212-84-1848-2-12-6-6-2-3351333-16-00-28-5-272-16-20 20122020-21-20-1 -3-2-110 -1022-12CLA12-77KEE64150-8-150-61506KRAKUD-1612GGOADGAR-7-22CFM-1749ADM-270778BRI-27414-10AD21INC-24-81-5-1241-4CPK4WOO-12ADLPT-02758SNG10518-64-16DRO4BGH-7624-3-8 83-19FIN FIN32-7-17717417-17ATHY T-3-41-7

17-29-07-2-75-2-525-2-525-2511457-5-14 14-2-14214-15 1592-1114-1414-14-10 10-10-7107-11-36-18-618-10 1012-10 10-10-121012-6-26812-81-11236-361136-115 -53140-14-1-16-131513 -13157-0-201-4-1-132 -32-6 7-5-2-19-2-0-17-1324-2-06-8-35101-22-13741401-38 -8-1044-015-3-3-15920-5147-3-7-110-2-6767-85-72-2-1-1 0-55-55-141456-18-618-321213-6-13-8 8-8-08-0-1914-4748-19-19520-683-8-3-13-9139-10410-5-13213-238 -381012-4-127-7-310-10-10113-86-11386113-86-113-101110-13-1826-25-1725181221-252725-34-8-11-44-15-8-24-102410-11-2610-41-1342-19-1-35-8-3572012-12-46181719-8-19818 -18-11 116761433-3-41-7 7-4141-18318-427-6-276-12212-392-121213331-2-1-01-0-10910-11-5-17217-3-10610-6-1819-11110613-135-594-35-94338-22 221316-16-197725-7-23725-7-23723-5-651-9-19-055-55-829-156-410-4-2 22-20-97-737-3-1090109-11-109-1109-9-29 302-5-25-4-742-7-2330-14-1-6611-0-80764-62-100611-1110 -10-377-19-751025-19-484-9226-521221-21-116-7-73423-0-1123-03614-12181-3117-6-0-2-13-25-3-1839-10-05-75-13-16-4-39-6-3-78 -0-806-82-14-13426111 3-93-76-3-235-48-25-10-725152-410-2-3-3113-17-17 18-0-7-2 2-2-3-140-62-7-1-36-10-35933285127GWE-841586-26-2835-5-20-3-114-7 74-16-321641649-7-9-3-0 00-0-00-1-415-11-15-306-2-61-7-306-34-2-0-0-0-25 25-6-31531-5-6-2-828 0-1-21-121418-7-115-0-6-838-12 1222 -22-9MP-350-55-1 080804-6-4-842-4222-18-2318-341334-13-17-2116-0-18-030-91915211-0-1-7-32320194 -44-5-3513-11712-55-152-21033222 -2214 -124119-4-25923-2-19-141-3-7-2-10-132423-105-5-717 -17-27-592362LISSTRARV7MTHKERARK12BOLARI35-14-11-6900-01187-8-17-29 -9-1515-120-12-16-2411-5-1IKE96CLWGOR-13 11-11PLSDOOGAL13-432-5-0TBSH-20TLKCF20-10-5RYBKKY-4-424-3-2-8BLK-153719-2 -25166BINDRM-25-15TAWDFR-401340-14-14-381238-714-14-3-32 326CDUCSH-21-4603-13330000NEW0TONCLN9-621-4ATH-74213-11ANR-15PRO-2-1133912112-3-1-12-12-12-92224-4-11-5MAY-14-17 RNW37-125-0-0-73912-2-232DSN-0INC-39KRA0CUL-0-21 CDU-5-1647518-62SVNFIN-44-17-444420LIM9-2-5GAE-2CD-53-2232 -2214CHAGIL-4TBBEGARKCRAKLSPAMAYMCEFINFINCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLBKCUNSLIMEELETKTYSORCLGOREKNLOUMLNDDKDRY-4ADGLE9DAL-18CUSTSBDERKINSKLNAV35KLS-304BLIDMYFAS-120 MW1RAFTBGMID-31 MW1 MW0 MW98 MW5 MWATE-13SOM2 MW0 MW12 MWNWSHLPBGCA8-41WEX8-1COLBAL-7PLAWOO0-3LOURRUKURINCGRITHGIMULISH12 MWCORSBN-6-62FLAFLA18CDYCOSLSNCULTIPLACAHDGN-20 MWADCVW17KLN1KLNCSH-7MOYAA1DYNRATMAL-78-3MTNMUN1-80-80-2 1AUGSKDRUENN11DLTCBR-19 KRAKBYMRCOWMAC54CKNCLACLACGLTRLOUGTRICLHIACROCDU-2658GLA-8GOL-8-7BRYRSY-10ATYBDARAFJ-03-3511353630 MW15 MW0 MW-36-1-01 MW15 MW0 MW0 MW1 MW0 MW118 MW-210 MW0 MW0 MW0 MW257 MW3 MW21 MW13 MW0 MW3 MW1 MW0 MW2 MW10 MW137 MW3 MW0 MW2 MW1 MW93 MW0 MW14 MW5 MW35 MW6 MW20 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW53-24160 MW14 MW15 MW1 MW0 MW0 MW1 MW0 MW4 MW21 MW4 MW161 MW2 MW0 MW0 MW11 MW5 MW23 MW13 MW16 MW26 MW17 MW17 MW0 MW20 MW0 MW13 MW1 MW5 MW0 MW-539 MW12 MW0 MW55-45-55-890-66470-29MAY-17-21-550551-540541-1092109-0721-7-431843HNLOUHNTAN44-25256-44DSNMPMPMPWOO-3440-0-2-400BWR-0-17-37115-2-5-002-318-114-2-8-1-2-18RIC-0-261NANBRI1-6CKM-0257-256115736-2590-32048 -4827-5055 -554745-557853-9-73-771614-53-41-141-237055-47-7314230-18-5-12627-0-3274-3-44OSTTYNMAY771-71SHL08-70PB211734-64-21-7OSTFigure J-02 Power Flow Diagram Summer Valley 2010-25-31827-68-84220-31-2032-4143-14-212821-2813-3-12151-15-766-63-413-4-13-0-1011017-10-1714-6-156-1-33-9-21-521-267425-7326-27-2927-642-5-42-3-311-4-10310-10310-1-10-0102-23-2238-164617-943-114-0-148-16-916-2-8181027-19-277-14-1914-213-11-13-1844-18-43-6416-41-9129-1200-0-0-1-2126-6-1-13514-51-92-33-31-14541-3168-5 33-7-17114-14-7-15-119-14-6-030-19983-8485000-42-2142-11-0-12-6-1-1-1306138-0-0-1060-3-20 20-4020-1-20-0 -3-0-210 -1022-11CLA12-42KEE8-801-52752-10KRAKUD-412GGOADGAR-3-22CFM-107ADM042-5BRI-98-0-3AD14INC-44-41-5-1222-2CPK22WOO4ADLPT01511SNG3149-8-16DRO4BGH-331-421013 -13-9-46FIN FIN1-4-12412313-13ATHY T-1-41

13591014-12-14168-16-7147-1422-221140-0-015 -8-10715107-8-19 192515-3442-4142-4111 -116-24-6245-3-41-214124-34 3413-34 34-34-113413-31-1132113612-36-88-1245-451945-19-40-264019279-27-9-192619-26 26203011-81160-7-1599-18 1810 -1018-14-13-6-1-7-66-1238-326114-11-9-215-44-35512410-7-6-44-11 12-14-44046-21-21-462031-47-219-23-191833-323513-359-13-32-924-2417-17 17-2727-2929-30314-42-214224-481731-8-3152 -5119-2-19218-6-259265-5-15-015-1353-35-3-53-105311-462147-20-51352-2129 -1292052-8-52-2525-7-15515129-27-12927129-27-129-77977-11-2799-99-269932-6-345339-52-46-8-17-2110-39-12-24-102410-0-25-1-50-2750-67-6-34-4-2912612-129-3-91112-2-121-38 387 -5-290-12-15895-9-6-40-12 14-142142-771179-3662-65-115-12-1510366-0-1161319-0-6-161-141614-17-24-513753-3571-5-70715-147-2919241-121-2116-46-154035-84 85225-5-578669-6-552050-19-491949-2242-12-23-123410157-156-206753720-294-2140 -40-146206134-8-47-63463-16-63463-16-16 1615-14-15145-18-513-30-26814-14213-313119-525-3-757-11-33411-14-4143-0-2412-130 0-4-21-14211410-1-1016-2-33-656-64418-18124-234-1002-1221356-830-6452942929-15-1-17-71001-4-8-2311-613-119838-33294865-18-2014-31-19-9-78 -18-34-317-98-16-1818261-8 -2-3695-6-18-1541-61-505-4-654209-2114-2-50-1918-202 -13-17-107 107-12-18161-260-109-1929-45-14-16114503714-70GWE-14214027-7-3734-1023 -22-13-30-88430-48 4815-98-2598142619715-2828-93-140 -0-00-015461159-15-2452-4 40-24-112411-12-301-5-2800-01 -113-31331-3-31-10-231023 2-9-89-284216-533480213-2154-16286-28-12 1222 -22-9MP-5165-1616-6 5808012-1-12-27118-117-12-65071824-18-246-21-7-0-24030-14584614-21-151119-3519-0687 -69-47-41-22181315-925-2088605-19-2 1-4 3-20-91-146-14-778-13-6-101-26-8435-13-0-20-20-0-501-19-21-1-37 371615-47-998-30-4LISSTRARV65MTHKERARK13BOLARI51-1-3-24-60074101-3-113-2 1-8 8-1118-11-2-2279-20-2IKE1432CLWGOR-11 9-79PLSDOOGAL-442-474-20TBSH-26TLKCF28-0-17-16RYBKKY-12-418-13-11-31BLK0-283314 02-24BINDRM-683-52TAWDFR-171617-18-22220-2-1527-27-8-41 4110CDUCSH20761-113-16310000NEW-0TONCLN-6-121-5ATH9-56-8-26-11ANR-46PRO-7331531-21015112-15-10-1020-24192921-8532ATYMAY-42227 RNW444025-0-5-017613-29-20-26DSN17INC-176KRA0CUL-0RAF-2CDU-6-11941233-56SVNFIN44244-44-18LIM80-25GAE-2CD-5236216 -62-9CHAGIL-5TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLBKCUNSLIMEELETKTYSORCLGOREKNLOUMLNDDKDRY-6ADGLE3DAL16CUSTSBDERKINSKLNAV161KLS-6012-7BLIDMYFAS-15389 MW-18RAFTBGMIDLWD10 MW14 MW-21 MW1 MW0 MW196 MW5 MWATE11SOM2 MW0 MW12 MWNWSHLPBGCA206-142WEX271COLBAL-12PLAWOO-54-9LOURRUKURINCGRITHGIMULISH-142 MWCORSBN3029-3FLAFLA24CDYCOSLSNCULTIPLACAHDGN14BRY0 MWRSYADCVW20KLN-17KLNCSH-1MOYAA-16DYNRATMAL-1313-5MTNMUN-9-80-808 -9AUGSKDRUENN34DLTCBR-1 KRAKBYMRCOWMAC52CKNCLACLACGLTRLOUGTRICLHIACROCDU-991713GLA-12GOL-1314J-04-113424411311630 MW15 MW0 MW-115-35-341 MW15 MW9 MW0 MW0 MW1 MW34 MW12 MW0 MW18 MW120 MW0 MW0 MW300 MW3 MW21 MW13 MW0 MW3 MW1 MW414 MW3 MW2 MW10 MW137 MW3 MW261 MW2 MW1 MW93 MW276 MW14 MW5 MW35 MW6 MW20 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW120 MW13620-136-10295 MW14 MW15 MW1 MW295 MW0 MW1 MW20 MW89 MW21 MW4 MW161 MW2 MW8 MW261 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW0 MW35 MW19 MW13 MW1 MW5 MW0 MW10930-109-85-261-1433-27261-24MAY-25-309-31231-2-31231-2-63563-459309-33-31452314HNLOUHNTAN5722-2215-57DSNMPMPMPWOO204130-0-9-1370BWR-0-16-444313-5-1342 -421913 -134-002-5-655-338-4-2-9-24-1-2-10-25-38RIC-0-5131NENLWDNANBRI1HTS-13CKM-0300-299-289220-1285-451204 -416-5-166 1677-30-109122-2-21-91-11926152-23-65-29-821093061657-19171535-120-41-61-36-36OSTTYNMAY-3206-206SHL32-783PB31294-203-67-309-59OSTFigure J-03 Power Flow Diagram Winter Peak 2010/11-25-410-1-1018-41-1842-5254-25-5-83-584-316729-6783-133-82133032-12-32-8-166-13-301330-301330-5-1441430-68-2572-3-12212-1112-10-7-3696-681-18-218-11-25112520230-2-22749-159-42162-290-6-89-7-46458318-52-314541-5-41-3-4644600-0-0-1-21213-115311859-182-175-5 13-175-912-3334-60291-83422936-28-363126-1016-29-5 33-47-97-50-450-2525-2422-35-5525-52-1389243882119614-178178-50-51505-2 226-4153-2-14-14914313-11921-7-20720119513419238-1547-23 23-3-5-1255220-26-18RAF-1-106-23-2CDK-179117-3300-41-11-388-24-20 20-03235-32-35-1 -3-3210 -1022-12CLA12-139KEE8129-0175-53-132-1413214KRA85KNRKUD-3012GGO-13ADCBGGAR-13-22CFM-2324ADM-385175513921-16BRI-19521-12AD-29-42INC-1-26-5-12-912-2-12CPK-12WOO-0ADLPT-0-2235SNG10548-81-16DRO4BGH-13167-2-12 12-1-12BRYFIN FIN

-209562-18871353-7-315-3-16214-2-14-2211406-03 -0-69369-0-66 67226-2835-3535-35-7 7-10-12-011-4-33-203321-37 3713-37 37-37-113713-24-1025103011-30-44-1049-491649-16-1-2011291-9-1-202120-21 2120175-4175-1-75-3-4 45 -56-6-18-4-1-1-1-0-737-222411-10-21114-48-125100-6-4-1-3021 -2035-0-5-8-85724-95-19-9194-29-143122-30-2218-29-1822-228-15 14-2323-2525-2424-1-33-203321-401832-10-3291 -87-7-57512-144146-11-9-29194-9-5-58-6588-361837-18-39139-0119 -1192439-5-39-1111-46-2-6231-70-23171231-70-231-139-2213922-2865-64-276430-5-673435-34-43-4-16-62-25-7-24-102410-0-15-1-57-2158-75-6-30-7-26-32112-1294478-5-83-23 23-3 4-17-3-14-50107-10-8-24-5 6-7070-61962-5378-37-819-9-19817-166-6347-589-4-141-1162-17-18-252526-25302-30-3-331-14132110-1018-1856-29-562451-79 793417-17-178530-5-25530-5-26626-1071015-19-1041668-68-761-74-255-314 -148-0-0-25-13-2131-171017-24-171017-2311-3-11-6116-16 1613-11-1311-2-17211-1753914-14121-181816-3-03-114-260-0-0-15-21531-3-115-167 -7-4-4-12411556-55151-3744-4-54816-1612-6-167-135-5-99526-014431-52723-172-8-51362-0-2-691713-12-4-0122911915-30-206-31-22-1-85 -20-51-321-96-12321159-2 6-1720-0-0-7-648-56-303-4-3018198-12-3-3-5-359-3-15-2 23-20-69 69-11-750-223-38-6-3-11-6-49-13-471341261041GWE-662571-16-2630-220 -19-11-23-395012-29 2912-59-2259701811527-99-812-6-65765-7-0 000-0-0213151-15-1739-7 7-222-1-17-131713-14-301-12-15-6-0-0-18 188-31331-3-13-695-9 212-6-12-361919-5635791811-1824-20111-1-12 1222 -22-9MP-5146-1414-6 680808-4-8-1660-60-2-0360419-4-196-21-7-0-19-030-3817-56-12-7-1455-1470755 -45-16-47-28-3614-210-19813605-5-1 -0-8 726-37-19-61-903-0-1-6-5-6-11-5014-6-0-8-25-4-3513-037-192-22 22106-16-448-184LISSTRARV30GOLMTHKERARK13BOLARI120-9-11-2110047133-5-7SRA-3-2 1-5 5-1120-112-231440-2IKE3813CLWGOR2623 -23-143PLSDOOGAL-211-52030TBSH-21TLKCF156-16-14RYBKKY-11-4212-7-95-25-6-13BLK-2-13712 -2-2-7BINDRM-30-6-39TAWDFR-291129-13-17-9159-1225-25-7-43-124310CDUCSH4-118-54-3424-70000NEW-0TONCLN2-121-4ATH8043-21-11ANR5PRO-91111316131413-6-14-12-1336-1972726-12-629ATYMAY-1914 RNW5524262-2-610813-27-2574-17-7DSN-2INC-108KRA017CUL0RAF-3CDU-4-151111891631-55SVNFIN-18CFM-5-2-557-0LIM8-7-10GAE-2CD-28-4485 -53-9CHAGIL-4TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLCAMBKCUNSLIMEELETKTYSORCLGOREKNLOUMLNDDKDRY-12ADGLE6DAL2CUSTSBDERKINSKLNAV47KLS-140111BLIDMYFAS18-14370 MW-21RAFTBGMIDLWD16 MW14 MW01 MW1 MW0 MW372 MW5 MWATE5SOMTUR2 MW0 MW22 MW12 MWNWSHLPBGCA76-70FAS TWEX16-2GLACOLBAL-17PLAWOO-24-20LOU-90RRUKURINCGRITHGIMULISH-122 MWCORSBN18173FLAFLA20CDYCOSLSNCULTIPLACAHDGN-8BRY0 MWRSYADCVW14KLN-29KLNCSH3MOYAA-12DYNBCMRATMAL-1313-5-13MTNMUN-14-80-8013 -14AUGSKDRUENN28DLTCBR19 KRAKBYMRCOWMAC28CKNCLACLACGLTRLOUGTRICLHIACROCDU-6519613J-05-912728919330 MW15 MW0 MW-93-23-221 MW15 MW224 MW9 MW0 MW0 MW1 MW0 MW12 MW118 MW60 MW0 MW0 MW0 MW310 MW3 MW260 MW21 MW13 MW0 MW3 MW1 MW0 MW0 MW3 MW3 MW10 MW137 MW3 MW224 MW2 MW1 MW93 MW0 MW14 MW5 MW35 MW6 MW20 MW5 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW79-8-7911274 MW14 MW15 MW1 MW-5 MW0 MW0 MW4 MW0 MW31 MW9 MW3 MW21 MW4 MW161 MW1 MW2 MW0 MW224 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW0 MW35 MW0 MW13 MW-77877-874594-42-224-11256-7-8787-38-6-6224-7-29MAY-32-343-959-5-959-5-171017-10137343-103-24348243HN36MCVLOUHN-94TAN2238-38-38-22DSNMPMPMPWOO210110-0-3-1120BWR-08-1-21-80-19-554313-5-1338 -381729 -293-002-4-545-823-7-426-6 5-26-6-19-1-2-9-23-23RIC-0-51350NENLWDNANBRI1HTS-13CKM-0309-30912311934-1187-400-78 78212-77 77-6-87775-70-35-118-7420-370-9456-30-9-56-776-59-4-7-01-13625-0-3359-4-41OSTTYNMAY297-97PBSHL013221-209-14MCV-132-7OSTFigure J-04 Power Flow Diagram Summer Peak 2013-25-10135-126-41-642-6115-1137246-48-243541-5-415-19-1920-16-451745-19-14191400-0-0-1-21212-12-11-818116-178-1076 13-107-2-0-0-00-0-00-91-1628-2-8-1 -1-0 -1-2-8-1644-44-432106-1051653-16-5353-16-259-3203-205-10-510-0-0-2015-2627-5690-3-741262024-19-24726102-266-98266-161745-187718-0-1-0-1016-13-2811327-113-5 22-24-4-43253251-317521-1744438-442-33-0331-0-5318-1843-4-63-51-47314-32-153691369-811699255-8181-9-38082-24 2777-9713-13-14-14914212-614729-8-6-17518-3-27-327-8-22022-211-3-114-5-76138239-5123-724-12 12-2-27-12355121-429-77-294-7RAF-0-3-2171-7-7-2-12-40-2CDK-355531535-400-255-37-20-3-369-1-20 2043235-31-35-1-4-557-3-3-2-7-18-1-450-5316-4440RAL10 -10-73220-4-2-12CLA812-74-31KEEKPG-05013-0259-93 8810811-192-41937KRA3MPKPGBRY-6KNRKUD-712FNTFIN FIN-25-4GGO-23ADSALCBGGARBY-7-22CFM17-1453MRYNOADM-366107-6746CKM COU-8BRI-116-2-16CHE-15AD2-55-6-49655BGFBGF-90-126INC-11-26-5-12-4-25401351-5-7CPK18-2WOO-39-66-96612FNT31-4ADLPT-0-21-34463SNG-35ONH10338-50-164-0-021TOEBGH1.00001.0000499-49-84-4-40 MWDRO

-488-41-8915-286-17-7181210-12-9119-11-3311457-5-11 11-2-11211-47 47-5-2-1215-1515-15-11 11-12-9129-12-11-10-110-4 419-4 4-4-19419-6-26812-81-11319-191419-1466-15-661021-1-211-13-0121 -1137-0-3340-10-40529 -29-3 4-6-3-3-2-0-4-63-183-06-8-3160-22-236270-1-1436 -36-1190-9-6-697939-12-5120-19-730-30-1-3-1-335-1 -0-22-220-0-61-10-110-401577-16-7777 -74-5-555-2015-7172-16-301130-11-050-6-16-4164-311032-10-24724-8131 -1312627-11-266-6-311-12-1124-43-244224-43-24-452645-28-2321-21-2221231525-782678-30-16-12-107-29-11-24-102410-12-2612-20-1121-7-6-42-6-441812-12-46152629-10-281012 -12-10 10-311-2233-3-45-7 7-3636-41842-730-6-2964-4-42-03-141325-4-9221-2-02-0-211922-19-4-9-191-545-5-1313-911349-94-4-6-1661117-20 20126-6-3569-6-769-6-767-7-19832-7-4-25119-94011-139-17-1551245 -511-3-0-98-14-1140324-32-17325-32-17-45945-14-4516-29 2913-10-13107-12-78-7-925-882-1-33112-2-21-1312-1-0-0-21822-917-10511-119 -9-36-15-61556-14-551124-816-3-163225-42851-25-13-7-62-17-0-111141554511-1311-4-31395-0-2-14-3-1-4-15-28194-365-11-13-0-38-92-616 7-17011-85-7-1102781 408-552120-52-92-3-1226217-212-3-17921-9-11 11-0-11-2 2-22220-43-6-045-16-19-13-201341812112GWE-9102942-33-842-75 -5-5-9-25-1115-8 84-18-311836352-621-212-44-441344-13-0 00-0-0-00215-11-15-39-3 308451-5-1-5-306-33-6-20-0-18 18-1-31531-5-13-123512-35 -517-8-1758-411-3384339-39-613-1-12 1222 -22-9MP-350-55-1 080804-6-4-931-3111-13-1412-24824-8-17-2117-0-7030-413-9-43-7-0-4-29-6-2-071 -111-3-20-15-10118-5-13-217-06-033023 -227 -817-44-1000-01123-2-1510-15116-6-1-7-251614-4845-5-111 -1135-3736-3-2LISSTRARV12GOLMTHKERARK19BOLARI34-17-8-9-41100-011510 -10-26SRA2-1414-2222-19-7-19-27-64613-6IKE4113CLWGOR-6-28 26-46PLSDOOGAL-03-528-10TBSH-8TLKCF62-11-5RYBKKY-4-4-374-87-38-1-5BLK-143386 -242719BINDRM-9-9-9TAWDFR-31831-9-8-29629-1415-14-3-33-8337CDUCSH-10-43-01-2532-40000NEW0TONCLN9-621-3ATH-1-61-100-11ANR9PRO-30739-911011-4-0-11-11367-2022-7-13ATYMAY45-12 RNW57-56-0-0-7392-0-22403-7DSN-128INC-39KRA0-3CUL0RAF-27 CDU-5-135089523-52SVNFIN-10CFM-19-11-1919-10-0LIM91013GAE-2CD-252252 -2284CHAGIL-1TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLCAMBKCUNSLIMEELETKTYSORCLGOREKNLOUMLNDDKDRY-4ADGLE8DAL-12CUSTSBDERKINSKLNAV20KLS-24044BLIDMYFAS10-8250 MW-6RAFTBGMIDLWD16 MW14 MW111 MW1 MW0 MW293 MW5 MWATE-14SOMTUR2 MW0 MW22 MW12 MWNWSHLPBGCA-40-36FAS TWEX9-1COLBAL-6PLAWOO-9-8LOU11RRUKURINCGRITHGIMULISH-62 MWCORSBN33-2FLAFLA7CDYCOSLSNCULTIPLACAHDGN-11BRY0 MWRSYADCVW9KLN-30KLNCSH-2MOYAA-4DYNBCMRATMAL-77-3-8MTNMUN-0-80-80-0 -0AUGSKDRUENN12DLTCBR10 KRAKBYMRCOWMAC25CKNCLACLACGLTRLOUGTRICLHIACROCDU-21568GLAJ-06-3722373830 MW15 MW0 MW-38-2-11 MW15 MW0 MW9 MW0 MW0 MW1 MW0 MW12 MW118 MW-210 MW0 MW0 MW0 MW0 MW3 MW0 MW21 MW13 MW0 MW3 MW1 MW0 MW0 MW3 MW3 MW10 MW137 MW3 MW0 MW2 MW1 MW93 MW0 MW14 MW5 MW35 MW6 MW20 MW5 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW52-21-5223177 MW14 MW15 MW1 MW155 MW0 MW0 MW4 MW0 MW31 MW9 MW3 MW21 MW4 MW161 MW1 MW2 MW0 MW0 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW0 MW35 MW0 MW13 MW44-31-44-99-451450-66-8912-9090323190-0-18-50MAY8-79162-16-2162-16-2324-32-4-4796-115-3115HN-34MCVLOUHN-1TAN116-4040-39-116DSNMPMPMPWOO12440-0-1-4-10BWR-013-5-8-135-11-57115-2-550 -50671 -714-0021-4-13-00-11-210-1 0-10-2-9-1-2-8-11-0RIC-0-26-2-5NENLWDNANBRI1HTS-6CKM-00-0-13-1832-2499-10-072 -7225-3645 -453231-44118-18-3418-11629-518-46-159-51-3065245-32516037100180-26-5-3-42OSTTYNMAY039-39PBSHL-0168-16-124-15MCV-16833OSTFigure J-05 Power Flow Diagram Summer Valley 2013-25-30526-313-41-1242-141113-11-331163-115-5415-4114-74-2274-4-14414-143615-360-0-00-1-212-34-11-1515021-148-391 2-395-0-0-00-0-00-915-54-7722591-225-8 6-9 877-225-9117-3434173435-1313318-4-1818-4-0-5255-255-21-621-0-0-2026-1717-646711-8695153-15-372128-167-125168-4414-1034101-217-2163-14-2132-5 33-18-3-0-111-1111-29031-9011381-113-5-1517-8-22-2216-8-25-0-12473-6-15250-43250-4090-3-65203-6464-16-30015126 -2458-6139-84-14-814000-31-10-111710-2-6162-9-89-2-9-59-44-1-4-3243130186-2792-618-9 9-0-1-4-127054-169-58-1712-9RAF-02-3261-6-6-2-9-27-1CDK-2627-21526300-0-20340612-25043-20 20-41135-11-35-08-276-2-3-0-4-10-2-14-17-183-1617-34-14RAL10 -10-4722-1434-13-11CLA22612-51-31KEEKPG-0-0-3-00-4 -03911-16119162-17KRA2MPKPGBRY-1KNRKUD-712FNTFIN FIN-11-0GGO-18ADSALCBGGARBY4-22CFM54-422MRYNOADM-24839-151-11CKM COU-14BRI-90-45-11CHE-26AD-5-277-56-727BGFBGF-67-95INC11-2-5-12-3-1127822-2-4CPK1011WOO-80-330330FNT313ADLPT0-2-7825SNG-43ONH2690-16DRO414142TOEBGH1.00001.000047-4-8-34-16-160 MW

-1026448-359527-02-2-215-1-15114-1-142-211401-014 -8-10114101-8-73 732410-3644-4444-44-6 65-8-11811-3-30-193020-40 4112-41 41-41-104112-33-1234123913-38-99-1071-711971-19-9-25917153-15-4-212621-26 26213012-501032-102-4-14 148 -88-15-10-6-1-6-105-635-226911-8-22115-37-3051082-7-2-456 -6-2-3010-2-2-10324-174-9-792-13-104216-42-1511-39-1123-2222-16 15-2626-2828-89-4-30-193120-491329-12-2994 -8911-3-11291-192196-12-5-352227-21-7-64-6649-412042-20-47248-1141 -1402646-7-46-1717-1213-1180-22-18023180-22-180-81-188116-2893-92-279232-5-863234-32-42-8-19-106-34-9-24-1024104-21-5-54-3455-81-5-37-6-3753212-129121516-5-164-30 302 -1-214-13-103106-10-7-33-7 8-9797-741076-3528-51-720-12-201120-115-6368-254-6-161-8198-20-25-372738-26563-56-23-33-24142812-1224-246-42-63657-91 91314-4-28-7-8398-25620-6-18618-24541-24-13231360-59-159864-21-274233 -324120814-11-4114912-91-13913-90-1418-11-18318-3-15 158-14-814-2-18213-30-134713-13172-2525170-1-0-03-2-4-94344-14-2151-1-4412-13-1 1-4-16-91685813-57183-34-3103-113717-17211-187-98-3-106826-825-2452743837-11-1-21-79833-9-2591113-12-222413717107-26-215-30-25-368 -19-56-330-97-12-2242111-3 3-2017-00-12-1068-57-203-3-3914243-172-1-61252-151 -13-28-101 101-13-12104-269-121-60-183-71-14-681450297-37GWE-15103523-6-2937-624 -24-14-24-467017-34 3411-70-2070973710418-2424-75-13-701671-160 -00-0-02391159-15-2454-5 501910-31-113111-12-3011-14-10-0-9 911-31331-3-22-140-4 26-4-6-232422-5939892413-2447-20209-20-12 1222 -22-9MP-5176-1717-6 6808013-0-13-2886-86-17241-2715-7-166-21-7-0-30030-29281013-5-1-15915-3112-0815 -47-31-68-223916-522-243105-05-15-2 1-13 1222-38-20-82-12-6124-2-6-8-9-14-7031-00-4-26-11-416-038-23-4-29 2913-0-31-566-220LISSTRARV39GOLMTHKERARK12BOLARI-11-11-13-28-40083103-5-14SRA-0-2 1-1010-1020-10-1-2084-21IKE2922CLWGOR1717 -19-84PLSDOOGAL-382-4202-20TBSH-32TLKCF140-16-17RYBKKY-10-4112-8-263-23-7-20BLK1-73414 -51-45-41 -24-5-10104BINDRM-39-5-54TAWDFR-29729-9-14-101110-1028-28-8-42-134211CDUCSH21837-123-3623-140000NEW0TONCLN-8-1212ATH7-551-26-11ANR-10PRO-82811319111511-4-15-10-1041-21122822-12-239ATYMAY-24-29 RNW533324-0-6-214314-28-20140-23-7DSN-6INC-143KRA023CUL0RAF5CDU-6-121003601533-76SVNFIN-32CFM313-318LIM8-1-22GAE-2CD-37-0626 -6-5-9CHAGIL-4TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLCAMBKCUNSLIBUNMEELETKTYSORCLGOREKNLOUMLNDDKDRY-9ADGLE6DAL7CUSTSBDERKINSKLNAV68KLS-10013-8BLIDMYFAS32-16409 MW-19RAFTBGMIDLWD16 MW14 MW21 MW1 MW0 MW411 MW5 MWATE5SOMTUR2 MW0 MW22 MW12 MWNWSHLPBGCA159-97FAS TWEX281GLACOLBAL-15PLAWOO-47-17LOU-65RRUKURINCGRITHGIMULISH-132 MWCORSBN22210FLAFLA30CDYCOSLSNCULTIPLACAHDGN-4BRY0 MWRSYADCVW14KLN-33KLNCSH-5MOYAA-14DYNBCMRATMAL-1313-5-13MTNMUN-11-80-8010 -11AUGSKDRUENN36DLTCBR20 KRAKBYMRCOWMAC37CKNCLACLACGLTRLOUGTRICLHIACROCDU-9220713J-07-120474912012330 MW15 MW0 MW-123-39-381 MW15 MW270 MW9 MW0 MW0 MW1 MW34 MW12 MW118 MW58 MW0 MW0 MW0 MW380 MW3 MW350 MW21 MW13 MW0 MW3 MW1 MW-3 MW188 MW3 MW3 MW10 MW137 MW3 MW270 MW2 MW1 MW93 MW150 MW14 MW5 MW35 MW6 MW20 MW5 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW11522-115-15403 MW14 MW15 MW1 MW274 MW4 MW48 MW4 MW20 MW31 MW9 MW89 MW21 MW4 MW161 MW1 MW2 MW8 MW270 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW0 MW35 MW19 MW13 MW-121812-1014195-38-269-1131-27-19-122122-22-18272707-21MAY-23-317462-46-2452-45-2913-91-2120317-91-31349313HN21MCVLOUHN-95TAN4735-35-18-47DSNMPMPMPWOO293130-0-10-1380BWR-013-4-19-134-22-524313-5-1357 -571933 -337-002-5-656136-3-234-5 5-34-10-25-1-2-12-24-35RIC-0-513-3-11NENLWDNANBRI1HTS-13CKM-0379-3791613820-16102-470-73 731911-162 163-9-181294-80-20-138-9220-080-15-1069-28-4-68-12161410-1-38-2838-0-46-14-4-39OSTTYNMAY-2139-139PBSHL027944-291-26MCV-277-15OSTFigure J-06 Power Flow Diagram Winter Peak 2013/14-25211-7-10-14 14-6 5TIV16-41-1642-02-1-255317-49-313541-5-415-10-1910-25-712871-293530-350-0-00-1-21211-11-4-120817-205-1422 14-142634-4-4-00-0-00-0-0-9-0-9-2704-70-2 1-1 -02-70-20117-171-1726149-1487130-7-130130-7-348-3273-266-14-6144348-45-4816-1111-62694-84982229-22-29286395-259-90260-252871-32141432-0-11-1016-417440-74-5 33-30-8-76276271-320634-20650-1-507-48-448-2121-3322-215517-44-54-128018-39-174088408-41281117283-9090-15-461155-23 2786-4321-20-14-14914313-8722-2362-7-21721-5-31-231-10-27327-213-4-136-7-158746144-3147-1430-14 14-3-515-12475420-5418-86-3612-16RAF-1-6-3281-8-85-14-44-2CDK-387851738-800-282-44-21-13-408-8-20 20-22935-28-35-1-17-788-3-3-3-14-322-71-1-1307-11179RAL10 -10-802210-17-1-12CLA7012-78-31KEEKPG-0-0348-30 261424-212-1021315KRA7MPKPGBRY-2KNRKUD-2612FNTFIN FIN-27-7GGO-14ADSALCBGGARBY-9-22CFM9-1833MRYNOADM-404142-27816CKM COU-4BRI-1286-18CHE-17400 MWAD-6-78-21-332178BGFBGF-69-98INC0-63-5-12-8-27451513-2-13-14CPK32-18WOO-1-70-147017FNT312ADLPT-0-23-46-1744SNG-24ONH10398-16DRO4-9-924TOEBGH1.00001.0000563-55-217-1-1

-1411848-198984-1-6116-6-16614-6-15-121211406-013 -10-701370-10-70 70187-3037-3737-37-6 63-1-919-5-23-222324-41 4112-41 41-41-104112-26-1126103112-31-44-754-542154-21-2-2221490-9-1-221622-16 1622196-306612-66-17-3 36 -67-7-18-4-1-4-62-738123332-30-19-015-28-13595-8-4-3-20-1 1100-7-22-2271314-73-22-202215-32-315211-526-10-48-622-2211-16 15-2222-2424-13131-23-222323-421330-12-30105 -99-19-8198-08-149151-18-10-1100134-13-4-57-105712-361737-17-39-0391117 -1172338-4-38-1313-341-4247-66-24768247-66-247-128-2912829-2468-67-246727-4-491641-16-49-2-19-51-24-6-24-1024101-14-3-60-3161-82-5-28-7-2442212-129-0256-6-65-25 25-2 3-184-7-53118-11-9-22-6 6-7474-62763-3407-40-722-8-22723-163-43363-21-5-151-132214-23-19-332834-28347-34-7-22-2-16182210-1019-1960-43-603856-81 812717-17-38517-5-12517-6-12712-3678-9-20-11292240-40-11013-52-155-315 -15430-49-9-897150-15-13150-15-1416-7-16-1161-15 1511-11-1110-5-17511-19-16463-3132-202017-3-03-1-24170-00-16-31632-3215-166 -6-49-14-913608-59187-4146-4-7286-72017-149-141-1-93412-016321-52534-120-11-51422-2-2-761611-13-2-2203328769-22-2260-141-93 -24-56-330-100-11113149-53-2320-11-8-752-60-176-7-3521234-13-1-0-6-3-3-1-130 03-29-70 70-12-853-233-49-70-16-1-54-18-52184325819GWE-1052468-25-2528-221 -21-12-14-454613-27 2712-55-2355742112233-1111-8-1-2-59559-50 -0-0-0-0-2244157-15-2241-8 8-2246-21-122112-12-301-8-161-0-0-12 128-31331-3-19-7137-13 -112-4-12041722-5531791911-1925-1617-1-12 1222 -22-9MP-5156-1515-7 680809-4-9-1764-64-4-3313-2202-216-21-7-0-21-030-153-710-12-1563-280826 -54-18-52-221-2515-110-234155-05-3-1 -0-10 915-43-30-53-9-42-11-7-6-6-12-452-70-14-24-6-3114-343-20-4-24 24106-18-137-194LISSTRARV35GOLMTHKERARK12BOLARI8-0-9-11-22-3462-4152114-6-5SRA-4-3 2-2 2-1024-106-2113220IKE151319CLWGOR3230 -30-132PLSDOOGAL-241-5184-0TBSH-22TLKCF16-1-16-15RYBKKY-11-4-013-6-118-30-7-13BLK-364211 -9-6-67-74 -57-8-667BINDRM-17-4-41TAWDFR-361236-14-18-171617-1026-26-7-45-124510CDUCSH6-021-65-3325-80000NEW0TONCLN4-121-4ATH8-266-16-11ANR7PRO-101110-06121513-4-15-12-1245-1582925-13448ATYMAY-17-12 RNW5722252-3-61377-29-237-0-12-5DSN-2INC-137KRA012CUL-0RAF-1CDU-4-91181991327-96SVNFIN-19CFM000080LIM8-8-10GAE-2CD15-43216 -61-9CHAGIL-5TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLCAMBKCUNSLIBUNMEELETKTYSORCLGOREKNLOUMLNDDKDRY-7ADGLE6DAL-5CUSTSBDERKINSKLNAV52KLS15012-0BLIDMYFAS19-15379 MW-17RAFTBGMIDLWD16 MW14 MW21 MW1 MW0 MW381 MW5 MWATE-1SOMTUR2 MW0 MW22 MW12 MWNWSHLPBGCA110-74FAS TWEX17-1GLACOLBAL-14PLAWOO-25-20LOU-75RRUKURINCGRITHGIMULISH-112 MWCORSBN19184FLAFLA21CDYCOSLSNLSECULTIPLACAHDGN-4BRY0 MWRSYADCVW13KLN-35KLNCSH-5MOYAA-11DYNBCMRATMAL-1313-5-13MTNMUN-16-80-8015 -16AUGSKDRUENN30DLTCBR31 KRAKBYMRCOWMAC-15CKNCLACLACGLTRLOUGTRICLHIACROCDU-68163J-08-973132979930 MW15 MW0 MW-99-26-251 MW15 MW233 MW9 MW0 MW0 MW1 MW0 MW12 MW118 MW20 MW0 MW0 MW0 MW370 MW3 MW370 MW21 MW13 MW0 MW3 MW1 MW0 MW-10 MW3 MW3 MW10 MW137 MW3 MW233 MW2 MW1 MW93 MW0 MW14 MW5 MW35 MW6 MW20 MW5 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW85-4-857344 MW14 MW15 MW1 MW-5 MW0 MW0 MW4 MW0 MW31 MW33 MW3 MW21 MW4 MW161 MW1 MW2 MW0 MW0 MW233 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW0 MW35 MW30 MW27 MW0 MW13 MW-771777-873680-34-233-324711-20-6969-16-16-112336-21MAY-85-32770-7-070-7-0150-15-0138328-107-20397203HN14MCVLOUHN-80TAN5311-11-31-53DSNMPMPMPWOO205120-0-4-1220BWR-06-1-24-60-21-564313-5-1342 -421731 -313-002-4-645024-52-330-6 5-30-7-20-1-2-9-23-24RIC-0-513-3-7NENLWDNANBRI1HTS-13CKM-0369-36913912611-1987-49-0-82 824912-77 77-16-177779-54-11-126-78191654-5-1838-29-2-38-7716-5918-12-2012-150370-4460-3-68OSTTYNMAY-9106-106PBSHL-012737-204-21MCV-126-23OSTFigure J-07 Power Flow Diagram Summer Peak 2016-25-7112-11-13 13-5 4TIV-18-482048-263527-358-69-5690-0-00-128-1-21211-11-6-517713-174-136-4 7-1369-41-9-9 -9-17833833-91766-17-66-30-2030-8-3332-0-69-242-5-20-0-00-0-001045-9-1-222-2-10126-14 12351744-41623-92510-25-409236-1 -00 -26-71-233-320-203-2033100-9946-160-451603236-33-3636-33-367-5335-337-22-722-0-0-2010-1313-5092-9-651291924-18-2462790-273-85273-182048-1977190-1-0-102116-239722-96-5 22-25-4-54264261-317526-1756924-696-33-533-22-2721-2052-1-37-54-16812-26-1337914379-141188-8263-8484-48-410482-3 792-91424-24-0-2626-812-80-6266-255-285-28-528-14-14914212-656-5305-6-19619-4-29-329-8-23123-212-3-122-3-86541259-10123-825-12 12-2-28-12195410-5211-92-302-9RAF-0-5-2571-7-7-2-12-42-280CDK-34-628-97-2037720458413343-0-0-263-20-14-7-000-379-14-20 20-22635-26-35-1-6-587-3-3-2-8-19-1-480-3632-3-332014-5KKMRAL-284-9233-3010 -10-67222015-20-0-2710-4TRI274231 -31830CLA-62KKM-32CDL7112-79-31KEEKPG04110KNR-10-20367-16 121366-184-61848KRA3MPKPGBRY4KNRKUD-612FNTFIN FIN-26-5GGO-25ADSALCBGGARBY-26-41-21-6GLE8-44-22CFM22-10-1227MRY0LSENOADM-35-375-6666 -3317-913647910CKM COUGROBVKKNR-15BRI-118-012-17CHEBVK-12BGTADKCRBVK2862-58-7-46758BGFBGF-92-129INC-19-27-5-12-4-26421351-5-7CPK19-4WOO-25-67-106713FNT312LSEADLPT0-12-19137SNG-38ONH0-2810268KNR-4141CKNGRO-3366-14-66-16DRO-4-142726-27-26-1512TOEBGH1.00001.00000 MW

279-3-5423-2612-21-13211313-13-121112-12-171711457-5-13 14-6-13614-52 52-2-1-1316-1616-16-11 11-12-13913-9-1-2-14214-10 1019-10 10-10-181019-6-27912-90-0196-6-26275-33-742823-5-235-838-3 3881-3942-19-421528 -28-7 8-13-3-0-2-1-9-88-453-06-8-31142-18-43625-0-3-1719 -19-10-0-1111114932-14114-5-22294-93-4-8-3-447-4 3-11-112-113-2-14214-482786-27-85113 -105-3-837-1817-7980-25-231224-12-050-6-17-6176-351436-14-28828-8150 -1494131-11-315-5-211-13-1196-98-969896-98-96-10573106-73-3111-11-3111312010-804681-50-13-17-710-25-19-24-102410-18-2618-35-1735-20-12-40-11-421812-12-49142528-9-2799 -9-12 13-21-9-2143-4-45-11 11-3838-461146-935-18-34188-3-8217-111127-3-39-1-2-02-0-232224-22-5-18618-7-242-5-1111-71-0512-124-4346-34-1226-26 26911-11-31210-2-7210-2-727033115-8-4-7710-105930-155-205-3-6 612-30-195-14014-155-9-55-455-8-55-4-421742-22-4224-28 2915-11-15119-13-98-81230-433-0-44123-1-3-0-3233-100-221323-1317-15910-119 -9-30-6-0557-27-551636-1215-6-155185-624-160-10-61-10-61-27-0-11318-54417-230-7-36114-13-0-3-20-7-1-5-14-41822-5-387-9-82-8-113-213 3-26015-75-5-211271014-113-88116-41-105-6-1324206-311-3-17392-60 0-0-16-6 6-31210-64-2-242-24-60-6-151423126GWE-672598-29-440-106 -6-5-9-29-1023-9 95-18-331838455-621-21722-431143-11-0 000-0-12415-11-15-310-4 40158-313-1-5-306-26-680-0-15 16-0-31531-5-15-193119-30 -69-15-9614-9-0-341245311-3-3-5-12312-12 1222 -22-9MP-350-55-1 080804-6-4-933-3312-17-1117-221222-12-17-2117-0-8030-243-11-2-2-5-2-8-28-9-2-0204 -411-3-6-1-2-13199-3-8-205012032823 -2318 -1921-40-2423-11111-0-1917-22109-2-1-5-393011-21641-6-29 -941-3542-2-2LISSTRARV13GOLMTHKERARK19BOLARI27-22-10-11-512-01101158-9-25SRA2-2020-1920-18-3-18-22-3610918-13IKE24815CLWGOR-6-75 75-109PLSDOOGAL-23-528-10-0TBSH-8TLKCF6-9-12-5RYBKKY-4-4-293-79-46-1-5BLK-2231128 -3523-33-12-2 01318-8-2BINDRM-10-2-10TAWDFR-291229-14-13-271127-2515-15-3-33-9336CDUCSH-11-54-11-2734-40000NEW-0TONCLN19-621-2ATH-6-104-13-3-11ANR11PRO-3248-1611211-5-2-11-11573-2422-928ATYMAY912-16 RNW61-537-0-0-7994-4-21421-2DSN-2INC-99KRA0-1CUL0RAF-22 CDU-5-315354531-72SVNFIN-11CFM0000-20LIM928GAE-2CD242-9-22 -2234CHAGIL-4TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLCAMBKCUNSLIBUNMEELETKTYSORCLGOREKNLOUMLNDDKDRY-4ADGLE12DAL-3CUSTSBDERKINSKLNAV6KLS-4045BLIDMYFAS11-9253 MW-9RAFTBGMIDLWD16 MW14 MW221 MW1 MW0 MW323 MW5 MWATE-15SOMTUR2 MW0 MW22 MW12 MWNWSHLPBGCA-59-38FAS TWEX9-1GLACOLBAL-6PLAWOO3-13LOU-28RRUKURINCGRITHGIMULISH-92 MWCORSBN22-2FLAFLA8CDYCOSLSNLSECULTIPLACAHDGN-11BRY0 MWRSYADCVW6KLN-44KLNCSH-2MOYAA-5DYNBCMRATMAL-77-3-8MTNMUN-1-80-800 -1AUGSKDRUENN13DLTCBR24 KRAKBYMRCOWMAC-24CKNCLACLACGLTRLOUGTRICLHIACROCDU-1151J-09-4022404130 MW15 MW0 MW-41-2-11 MW15 MW0 MW9 MW0 MW0 MW1 MW0 MW12 MW118 MW-210 MW0 MW0 MW0 MW0 MW3 MW225 MW21 MW13 MW0 MW3 MW1 MW0 MW0 MW3 MW3 MW10 MW137 MW3 MW0 MW2 MW1 MW93 MW0 MW14 MW5 MW35 MW6 MW20 MW5 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW56-24-5626147 MW14 MW15 MW1 MW-5 MW0 MW0 MW4 MW0 MW31 MW33 MW3 MW21 MW4 MW161 MW1 MW2 MW0 MW0 MW0 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW0 MW35 MW30 MW27 MW0 MW13 MW45-36-45-100-1-2510-66-8034-5555-3337810-41-61MAY0-12927-4-27427-4-27455-8-559-6412970-1426142HN31MCVLOUHN25TAN128-7676-50-128DSNMPMPMPWOO13940-0-1-4-10BWR-010-10-15-10101-61115-2-561 -611782 -8121-0020-4-03-06-11-511-3 2-11-2-9-1-2-24-22-6RIC-0-26-2-9NENLWDNANBRI1HTS-6CKM-00-0-14-2971-11101-2-080 -8033-4245 -453836-45130-30-7329-12756-1930-32-160-51-53-85145-38-571612215-32070-1557-3-50OSTTYNMAY3212-12PBSHL-0184-34-139-4MCV-18352OSTFigure J-08 Power Flow Diagram Summer Valley 2016-25-24519-4-5 5-2 1TIV-103510-3518-69-146900-0-0217-1-212-00-10-2316933-1660013-41-13-13 -32-133-1331-2662-66-3003011-3332-69-1912-7136-1300-0-00-0-084-915-5411-11161110-11 9-41-225-2262-14-105249124-248-3816844-7 5-8 693-248-10716-15-2727162742-151568-234-6223525-40-2540-40-25-224-4234-234-18-51800-2-017-1919-778222-104116171-17-192154-201-150202-6715-1144115-519-2-416-264024-40-5 33-17-30-112-1121-210136-1019790-97-6-3632-2-175-525-3-21-7-10462-5-16253-36253-3299-2-43223-71712-330-21-1 362-7-49-9-3522-2236-3515-463-6-5-0-5-0506-14-1014000-33-11-111810-2-7172-9-89-2-10-510-44-1-4-6533333197-2092-617-9 9-0-1-3-12-9747-2510-62-1810-10RAF-01-3761-6-6-3-9-27-1-15CDK-2840-6-142-1714229-2162822-0-0-22319-115-000-25336-20 20-71035-9-35-09-296-2-3-0-4-11-2-15-194025-15-1516-27-713KKMRAL-127-16733-3010 -10-4622-27-727-13-27-16-11TRI2742107 -107-1130CLA-62KKM-32CDL24912-52-31KEEKPG041-16KNR16-110224-105 101010-17923180-20KRA2MPKPGBRY0KNRKUD-912FNTFIN FIN-120GGO-19ADSALCBGGARBY-10-4153GLE-11-4-22CFM55-9-317MRY36LSENOADM41-251-6666 -33-2152-13CKM COUGROBVKKNR3BRI-99-0-39-11CHEBVK-18BGTADKCRBVK128-12-298-60-829BGFBGF-82-116INC24-2-5-12-3-1227822-2-4CPK1112WOO-90-36136-0FNT317LSEADLPT029321SNG-49ONH-2-17259KNR-4141CKNGRO-33665-66-16DRO472710-27-107-3TOEBGH0 MW1.0000157-15-61.0000

-525640-3518171-2-3218-4-18316-3-16-2211406-012 -8-901290-8-75 752512-3847-4747-47-3 39-13-6136-4-15-191519-43 4311-44 44-44-84411-36-1336134114-41-1010-1678-781778-17-0-29022173-17-3-251725-17 17253213-369715-97-18-16 1612 -117-16-10-7-2-11-2211-737-016342-42-20117-23-255107-2-8-5-33-26 26-518-011-19-19-111328-181-9-21916-13-31418-415-8-38-420-1929-16 15-2424-25255-5-13-15-191519-481124-18-24138 -128-2-625-01-255261-1-13113-2236-23-6-62-106212-392140-21-48248-2145 -1452946-9-45-1717-5-272167-17-16718167-17-167-72-127210-3096-96-309635-5-96539-5-47-7-11-912-34-15-24-10241010-19-12-55-3456-87-8-34-8-3643312-129101113-3-122-32 335 -4-234-18-105182-18-3-30-9 10-103103-741076-3594-59-322-15-221422-70-136108-23-6-161-392840-26-27-533755-3458-1-5733-35-25123011-1126-269-51-94560-96 96312-2-361-1481-341329-13-27132791146-23-26-14502280-80-1799617-3-343-1336 -3645201014-12-9129904-90-14905-90-1524-14-24624-6-14 146-16-616-5-20515-32-21469-8192-2727182-0-2-1-4-13-77342-17-11710-6613-13-1 1-48-14-8136514-6410-1-37-2112-11238-91219-297-105-3-105935-825-4343433737-9-1-28-8106512-10-2616712-13-0333132818225-25-2574-16-4-17 -22-59-430-95-12-615199-70-22171-1-14-1174-54-295-6-4825214-185-0-6-1-86-152 -13-28-90 90-14-14106-163-131-1317-246-78-12-741249268-50GWE-1593518-16-2634-1326 -26-15-28-456321-31 3112-64-23641034111022-2626-4-6-7-691269-120 -0-0-0-012412159-15-2456-3 40209-33-103310-11-3013-16-2-0-05 -415-31331-3-35-3133-13 011-4-11-142321-5435852612-2652-212310-23-12 1222 -22-9MP-5186-1818-7 68080140-14-3091-91-20-2322-5185-186-21-7-0-30030-6361165-8-171217-18140876 -59-34-74-21961517-812-213128-05-17-2 0-15 133-49-25-105-16-1057-11-7-12-8-18-6318-70-13-29-11-3210-150-25-4-31 31187-34-752-24-3LISSTRARV48GOLMTHKERARK11BOLARI-30-9-12-30-8786-698092-3-11SRA20 -1-7 7-823-82-1775-11IKE61336CLWGOR2111 -13-74PLSDOOGAL-392-4192-20TBSH-33TLKCF161-17-18RYBKKY-11-4-012-10-255-29-7-22BLK-2537-14 -0-2-114-4-0 -14-5-11114BINDRM-48-2-56TAWDFR-42942-11-16-221423-1030-30-9-44-134411CDUCSH25941-134-3625-15-0-000NEW0TONCLN-10-1211ATH4-754-17-11ANR-11PRO-92311-4991710-0-17-9-966-21143219-121738ATYMAY-23-18 RNW553021-0-6-628330-32-1815-16-28-2DSN10INC-282KRA028CUL-0RAF5CDU-7-131073521636-57SVNFIN-34CFM-182-1818-68LIM86-12GAE-2CD625197 -7-5-9CHAGIL-5TBBEGARKCRAKLSPABDAMAYMCEFINFINBOGCKMKTLMONGIWATBUTBDNKTNWHIOLDBANLIBSHMPTBKBARTHUAHASRAAGLCAMBKCUNSLIBUNMEELETKTYSORCLGOREKNLOUMLNDDKDRY-10ADGLE8DAL12CUSTSBDERKINSKLNAV74KLS17015-9BLIDMYFAS34-17418 MW-16RAFTBGMIDLWD16 MW14 MW81 MW1 MW0 MW421 MW5 MWATE5SOMTUR2 MW0 MW22 MW12 MWNWSHLPBGCA179-103FAS TWEX301GLACOLBAL-16PLAWOO-51-17LOU-57RRUKURINCGRITHGIMULISH142 MWCORSBN2423-2FLAFLA30CDYCOSLSNLSECULTIPLACAHDGN-4BRY0 MWRSYADCVW14KLN-49KLNCSH-4MOYAA-18DYNBCMRATMAL-1313-5-13MTNMUN-13-80-8012 -13AUGSKDRUENN39DLTCBR25 KRAKBYMRCOWMAC-6CKNCLACLACGLTRLOUGTRICLHIACROCDU-96222J-10-128535412813030 MW15 MW0 MW-130-43-421 MW15 MW242 MW9 MW0 MW0 MW1 MW34 MW12 MW118 MW52 MW0 MW0 MW0 MW380 MW3 MW380 MW21 MW13 MW0 MW3 MW1 MW36 MW451 MW3 MW3 MW10 MW137 MW3 MW242 MW2 MW1 MW93 MW-4 MW14 MW5 MW35 MW6 MW20 MW5 MW12 MW16 MW3 MW2 MW15 MW4 MW2 MW0 MW0 MW11826-118-19393 MW14 MW15 MW1 MW343 MW4 MW68 MW4 MW20 MW31 MW33 MW89 MW21 MW4 MW161 MW1 MW2 MW8 MW0 MW242 MW11 MW5 MW3 MW26 MW13 MW16 MW26 MW17 MW17 MW16 MW35 MW30 MW27 MW19 MW13 MW-78878-823895-35-242-5168-18-22-112113-16-6182429-21MAY-75-309453-45-2453-45-2905-90-4111309-84-27697277HN15MCVLOUHN-95TAN1420-0-2-142DSNMPMPMPWOO343140-0-10-1490BWR-0-67-413-13-19-1312-21-554313-5-1371 -711846 -459-002-6-6661426-79141-6 6-41-11-27-1-2-14-23-25-7RIC-0-513-16-9NENLWDNANBRI1HTS-13CKM-0379-379-1114716-2182-48-098 -98444-73 73-8-878119-66-16-147-117311666-7-1264-341-64-7861512-9-206-1470-55-15-3-63OSTTYNMAY2152-152PBSHL026341-341-35MCV-261-14OSTFigure J-09 Power Flow Diagram Winter Peak 2016/17-25410-9-9-15 15-6 5TIV-28-753275-253526-357-69-569-0-000-1315-1-21216-16-3-021117-2070-07-41-6-7 -11-2010331033-102066-20-66-30-1530-15-3332978 -7815-6264-0-50-0-0-00-0-00656-90-10-1212-20-1326-9 7882053-487310-324317-242-415136-2 10 -10 -16203-243-19-1235-35-1-3537157-15650-117-4311932194-32-194194-32-377-5496-499-35-9354167-44-67219-8-60612-81862334-22-34317287-253-83254-283275-341516341-22-102216-387637-76-5 22-30-8-76296292-323436-23319-8-196-42-442-1616-1229-277412-24-62-77916-37-1841824418-41311211290-9292-56-511576-8 1292-51419-192-5657-1724-102-3273-2718-1818-18-1918-14-14914313-9226-153615-8-22823-6-33-133-11-29429-114-4-147-8-149252155-5157-1530-15 15-3-614-1241626-7322-92-358-20RAF-1-8-3382-8-86-15-46-2102CDK-38-1918-97-277802778281838-8-0-0-289-39-19-1500-0-418-24-20 20-12535-25-35-1-19-828-3-3-3-15-343-75-2-1943222-135MUI19-12KKMRAL-379-6-5133-4210 -10-79223520-35-2-2720-3TRI2742-22 221642CLA-73KKM-32CDL24312-77-31KEEKPG-04120KNR-20120377-2 -203-214-1621521KRA7MPKPGBRY-0KNRKUD-2812FNTFIN FIN-29-7GGO-15ADSALCBGGARBY-26-41-22-11GLE3-55-22CFM10-4-1612MRY-2LSENOADM-88-413-6666 -3320-107718CKM COUGROBVKKNR-15BRI-131-021-18CHEBVK-22BGTADKCRBVK383-6-82-24-302482BGFBGF-61-86INC-2-72-5-12-8-29461514-3-14-15CPK34-20WOO7-73-157319FNT311LSEADLPT0-18-40-1224SNG-34ONH13-1510388KNR-4141CKNGRO-3366-17-66-16DRO-5-19-202726-27-26-1918TOEBGH1.00001.0000400 MW

APPENDIX KSIZE A3GEOGRAPHICALMAPS

TRANSMISSION FORECAST STATEMENT 2010-2016APPENDIX KSIZE A3 GEOGRAPHICAL MAPSAppendix K contains geographical maps of the grid in A3 format. Maps are presentedillustrating the grid as it exists at the beginning July of 2009 and as planned at the end of2016.K-1

Figure K - 1SORNEHILLPlanned Transmission System400 kV, 220 kV and 110 kVAs at July 2009KILTOYLETTERKENNYMEENTYCATDRUMKEENTRILLICKTO STRABANE400 kV Lines220 kV Lines110 kV Lines400 kV Cables220 kV Cables110 kV Cables400 kV Stations220 kV Stations110 kV StationsLEGENDTransmission ConnectedGenerationHydro GenerationThermal GenerationPumped Storage GenerationWind GenerationBINBANECATHALEEN'SFALLGOLAGHCLIFFNORTHERNIRELANDSLIGOTO ENNISKILLENLISDRUMTAWNAGHMORECORDERRYTO TANDRAGEEBELLACORICKMOYCUNGHILLSRANANAGHCORRACLASSYGORTAWEE275kVARIGNASHANKILLDUNDALKTONROECARRICK-ON -SHANNONGILRARATRUSSANMEATHHILLLOUTHMULLAGHARLINCASTLEBARFLAGFORDARVADALTONLANESBORORICHMONDNAVANGORMANDRYBRIDGEPLATINKNOCKUMBERMULLINGARBALTRASNAGALWAYCLOONCASHLASOMERSETATHLONESHANNONBRIDGETHORNSBERRYWOODLANDGLASMORECORDUFFKINNEGADHUNTSTOWNFINGLAS NORTH WALLDERRYIRONDUNFIRTHPOOLBEGMAYNOOTHSHELLYBANKSRINAWADEINCHICORE IRISHTOWNBLAKECUSHALINGMONREADCARRICKMINESKILTEELFASSAROESEEDUBLINAREATYNAGHOLDSTREETDALLOWNEWBRIDGEBARODADUNSTOWNPOLLAPHUCADERRYBRIENTURLOUGHHILLAGANNYGALPORTLAOISEATHYSTRATFORDBALLYBEGIKERRINBOOLTIAGHENNISDRUMLINELISHEENCARLOWKELLISSHELTONABBEYARKLOWTULLABRACKARDNACRUSHATHURLESMONEYPOINTTARBERTPROSPECTSEALROCKCASTLEFARMAUGHINISHLIMERICKMUNGRETMONETEENAHANEKILLONANKILKENNYRATHKEALECRANEBALLYWATERTIPPERARYTRIENCLAHANECHARLEVILLECAHIRDOONANNERBALLYDINEWEXFORDTRALEEGREAT ISLANDGLENLARACULLENAGHWATERFORDKILLOTERANBUTLERSTOWNOUGHTRAGHMALLOWKNOCKEARAGHBARRYMOREDUNGARVANGARROWCLONKEENCOOMAGEARLAHYGLANLEECLASHAVOONKNOCKRAHAKILBARRYINNISCARRAMACROOMMARINATRABEGCARRIGADROHIDCOOLROERAFFEENAGHADADUBLIN AREABALLYLICKEYDUNMANWAYBRINNYBANDONSEECORKAREAWOODLANDGLASMORECORK AREAMACETOWNCORDUFFCOLLEGEPARKHUNTSTOWNFINGLASDARDISTOWNKILMORECROMCASTLEGRANGEKNOCKRAHAMIDLETONRYEBROOKPELLETSTOWNCABRAARTANEKILBARRYLIBERTYSTREETCORKCITYTRABEGMARINACASTLEVIEWLOUGHMAHONOLDCOURTMAYNOOTHGRIFFINRATHRINAWADEGRANGECASTLENANGORINCHICORENORTH QUAYSMcDERMOTTWOLFE TONENORTH WALLFRANCIS ST.POOLBEGMISERY HILLSHELLYBANKSIRISHTOWNRINGSENDHAROLDSCROSSMILLTOWNCOW CROSSCITYWESTCOOKSTOWNTANEYBLACKROCKRINGASKIDDYCOBHCORKHARBOURAGHADALONGPOINTCENTRALPARKPOTTERYROADRAFFEENBARNAHELYWHITEGATEKILTEELCARRICKMINES

Figure K I - 21SORNEHILLPlanned Transmission System400 kV, 220 kV and 110 kVAs As at December at July 2009 2016BUNBEGKILTOYLETTERKENNYMEENTYCATDRUMKEENTRILLICKTO STRABANE400 kV Lines220 kV Lines110 kV Lines400 kV Cables220 kV Cables110 kV Cables400 kV Stations220 kV Stations110 kV StationsLEGENDTransmission ConnectedGenerationHydro GenerationThermal GenerationPumped Storage GenerationWind GenerationTIEVEBRACKBINBANEMULREAVYCATHALEEN'SFALLGOLAGHCLIFFNORTHERNIRELANDTO TURLEENANSLIGOTO ENNISKILLENLISDRUMTAWNAGHMORECORDERRYTO TANDRAGEEBELLACORICKMOYCUNGHILLSRANANAGHGARVAGHCORRACLASSYGORTAWEE275kVGLENREEARIGNASHANKILLDUNDALKTONROECARRICK-ON -SHANNONGILRARATRUSSANLOUTHBALLAKELLYMEATHHILLMULLAGHARLINCASTLEBARFLAGFORDARVAMID CAVANCARROWBEGDALTONLANESBORORICHMONDNAVANGORMANDRYBRIDGEPLATINKNOCKUMBERSTEVENSTOWNMULLINGARBALTRASNAEASTWEST HVDCINTERCONNECTORSCREEBSALTHILLGALWAYCLOONCASHLASOMERSETATHLONESHANNONBRIDGETHORNSBERRYDERRYIRONKINNEGADCUSHALINGDUNFIRTHBLAKEWOODLANDMAYNOOTHMONREADKILTEELRINAWADECORDUFFHUNTSTOWNFINGLASPOOLBEGINCHICOREFINNSTOWNCARRICKMINESGLASMORENORTH WALLBALGRIFFINSHELLYBANKSIRISHTOWNCHERRYWOODFASSAROESEEDUBLINAREAKEELDERRYTYNAGHOLDSTREETDALLOWBRACKLONENEWBRIDGEBARODADUNSTOWNPOLLAPHUCADERRYBRIENTURLOUGHHILLAGANNYGALPORTLAOISELAOISATHYSTRATFORDBALLYBEGIKERRINBOOLTIAGHENNISDRUMLINENENAGHLISHEENBALLYRAGGETCARLOWKELLISSHELTONABBEYARKLOWTULLABRACKARDNACRUSHASINGLANDLIMERICKPROSPECTMUNGRETMONEYPOINTSEALROCKAHANEMONETEENTARBERTCASTLEFARMAUGHINISHKILLONANRALAPPANE KILPADDOGEBALLYCUMMINRATHKEALECAUTEENTHURLESNOREKILKENNYBANOGECASTLEDOCKRILLLODGEWOODBALLYWATERCRANEKNOCKANURETRIENDROMADAATHEACLAHANEKNOCKNAGASHELTRALEEMUINGNAMINNANEKNOCKACUMMERCORDALGLENLARACHARLEVILLETIPPERARYCAHIRDOONANNERBALLYDINECULLENAGHGREAT ISLANDWATERFORDKILLOTERANBUTLERSTOWNWEXFORDOUGHTRAGHKISHKEAMMALLOWKNOCKEARAGHBARRYMOREDUNGARVANGARROWBALLYVOUSKILLBOGGERAGHCLONKEENCOOMAGEARLAHYGLANLEEBALLYLICKEYHARTNETT’SCROSSCLASHAVOONMACROOMDUNMANWAYKILBARRYINNISCARRACARRIGADROHIDBANDONTRABEGCOOLROEBRINNYKNOCKRAHAMARINARAFFEENAGHADAGLANAGOWSEECORKAREAWOODLANDDUBLIN AREAGLASMORECORK AREAMACETOWNCORDUFFCOLLEGEPARKDARDISTOWNHUNTSTOWNBALGRIFFINCROMCASTLEFINGLASKILMOREGRANGEPOPPINTREEKNOCKRAHAMIDLETONRYEBROOKPELLETSTOWNCABRAARTANEKILBARRYLIBERTYSTREETCORKCITYTRABEGMARINACASTLEVIEWLOUGHMAHONOLDCOURTMAYNOOTHRINAWADEGRIFFINRATHADAMSTOWN FINNSTOWNGRANGECASTLENANGOR KILMAHUDNORTH QUAYSMcDERMOTTWOLFE TONENORTH WALLHEUSTON SQUARE FRANCIS ST. TRINITYPOOLBEGMISERY HILLINCHICORESHELLYBANKSIRISHTOWNRINGSENDHAROLDSCROSSMILLTOWNCOW CROSSCITYWESTCOOKSTOWNTANEYBLACKROCKRINGASKIDDYCOBHCORKHARBOURAGHADALONGPOINTCENTRALPARKPOTTERYROADRAFFEENBARNAHELYGLANAGOWWHITEGATEKILTEELCARRICKMINESCHERRYWOOD

The Oval,160 Shelbourne Road,Ballsbridge,Dublin 4.Telephone +353 (0)1 677 1700Fax +353 (0)1 661 5375e-mail info@eirgrid.comwww.eirgrid.com