PacifiCorp 2007 Integrated Resource Plan (May 30, 2007)

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PacifiCorp – 2007 IRPTable Of ContentsTransmission Expansion ................................................................................................................. 231Other Issues..........................................................................................................................................232Global Climate Change................................................................................................................... 232Carbon Reducing Technologies ...................................................................................................... 232Modeling Improvements ................................................................................................................. 232Cost Assignment and Recovery ...................................................................................................... 233Assessment of Owning Assets versus Purchasing Power ....................................................................233Resource Acquisition Plan Path Analysis............................................................................................233vi
PacifiCorp – 2007 IRPIndex of Tables and FiguresINDEX OF TABLESTable 1.1 – Historical and Forecasted Average Energy Growth Rates for Load ........................... 3Table 1.2 – Capacity System Position for 12% and 15% Planning Reserve Margin ..................... 3Table 1.3 – PacifiCorp’s 2007 IRP Preferred Portfolio.................................................................. 8Table 2.1 – IRP and Public Process Timeline............................................................................... 17Table 2.2 – Participation in Regional Planning Organizations and Working Groups.................. 18Table 2.3 – Public Process Recommendations Implemented for the 2007 IRP ........................... 19Table 2.4 – MidAmerican/PacifiCorp Transaction Commitments Addressed in the IRP............ 20Table 3.1 – State Resource Policy Developments for 2006 and 2007.......................................... 58Table 4.1 – Historical and Forecasted Average Energy Growth Rates for Load ......................... 63Table 4.2 – Annual Load Growth in Megawatt-hours for 2006 and forecasted 2007 through 2016............................................................................................................................................... 63Table 4.3 – Historical and Forecasted Coincidental Peak Load Growth Rates............................ 64Table 4.4 – Historical Coincidental Peak Load - Summer ........................................................... 65Table 4.5 – Forecasted Coincidental Peak Load in Megawatts.................................................... 65Table 4.6 – Historical Jurisdictional Peak Load ........................................................................... 66Table 4.7 – Jurisdictional Peak Load in Megawatts for 2006 and forecast 2007 through 2016... 66Table 4.8 – Changes from May 2006 to March 2007: Forecasted Coincidental Peak Load ........ 67Table 4.9 – Changes from May 2006 to March 2007: Forecasted Load Growth ......................... 68Table 4.10 – Capacity Ratings of Existing Resources.................................................................. 68Table 4.11 – Existing DSM Summary, 2007-2016....................................................................... 73Table 4.12 – Capacity Load and Resource Balance (12% Planning Reserve Margin)................. 81Table 4.13 – System Capacity Load and Resource (15% Planning Reserve Margin).................. 82Table 5.1 – East Side Supply-Side Resource Options .................................................................. 93Table 5.2 – West Side Supply-Side Resource Options................................................................. 94Table 5.3 – Total Resource Cost for East Side Supply-Side Resource Options........................... 95Table 5.4 – Total Resource Cost for West Side Supply-Side Resource Options ......................... 96Table 5.5 – CHP Potential Prospects .......................................................................................... 102Table 5.6 – Sample Load Shapes Developed for 2007 IRP Decrement Analysis ...................... 104Table 5.7 – Class 1 DSM Program Attributes, West Control Area ............................................ 105Table 5.8 – Class 1 DSM Program Attributes, East Control Area ............................................. 106Table 5.9 – Class 3 DSM Program Attributes, West Control Area ............................................ 109Table 5.10 – Class 3 DSM Program Attributes, East Control Area ........................................... 110Table 5.11 – Transmission Options ............................................................................................ 113Table 5.12 – Maximum Available Front Office Transaction Quantities by Market Hub........... 115Table 6.1 – Alternative Future Scenarios ................................................................................... 120Table 6.2 – Scenario Input Variable Values and Sources........................................................... 121Table 6.3 – Sensitivity Scenarios................................................................................................ 125Table 6.4 – CEM Sensitivity Scenario Capital Cost Values....................................................... 125Table 6.5 – Planning Decrement Design .................................................................................... 137Table 7.1 – Alternative Future Scenarios ................................................................................... 141Table 7.2 – Alternative Future Scenario PVRR and Cumulative Additions for 2007-2018 ...... 141Table 7.3 – DSM Resource Selection by Alternative Future Type ............................................ 143Table 7.4 – Resource Additions for Load Growth Scenarios ..................................................... 143Table 7.5 – Resource Additions for Scenarios with Low Load Growth..................................... 144vii
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PacifiCorp 2007 Integrated Resource Plan (May 30, 2007)

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