Feasibility Study For XXXX Jamie Creek Hydroelectric Project (A077)

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Feasibility Study for Jamie Creek Hydroelectric Project (A077) Feb 2009 1.0 General The project reviewed in this feasibility study report is as described in Table 1 below. Table 1: Summary Project Information Project Name Jamie Creek Hydroelectric Project Interconnection Customer (IC) XXXX Point of Interconnection (POI) LaJoie Substation (LAJ), 60 kV bus IC Proposed COD December 31, 2011 Type of Interconnection Service NRIS ERIS Maximum Power Injection (MW) 17.6 (Summer) 17.6 (Winter) Number of Generator Units 2 Plant Fuel Hydro The Interconnection Customer proposes to build the Jamie Creek Hydroelectric Project, located near the town of Gold Bridge, British Columbia. The subject project is comprised of two 10 MVA hydro generators and will interconnect to the LaJoie substation (LAJ) 60 kV bus via an 18.4 km, customer owned 60 kV line from their generating site. The IC’s proposed COD is December 31, 2011. The project interconnection single-line diagram and the project location map are included in Appendix A. 2.0 Study Purpose and Scope This feasibility study is a preliminary evaluation of the system impact and cost of interconnecting the subject project to the British Columbia Transmission Corporation (BCTC) controlled transmission system based on power flow and short circuit analyses only and investigates potential system constraints associated with the interconnection of the project. This study is intended solely to assess the feasibility of integrating the generating unit or units of the Interconnection Customer, IC (or IPP), into the BCTC transmission system. It is also meant to provide the IPP with a non-binding good faith cost and schedule estimate to construct the interconnection facilities. This is a “limited scope” study which is restricted to only power flow and short circuit analysis in accordance with the BCTC Open Access Transmission Tariff (OATT). This study does not include stability analysis, harmonic mitigation, electro-magnetic transient analysis, and other analytical studies or calculations which normally form part of a comprehensive system study. This study also does not include a consideration of First Nations or property acquisition issues, nor the potential for such issues to affect the cost and scheduling estimates for the interconnection facilities in this report. Page 1 of 6 SPPA2009 – 16
Feasibility Study for Jamie Creek Hydroelectric Project (A077) Feb 2009 3.0 Study Assumptions A number of assumptions have been made for purposes of conducting this feasibility study. First, BCTC relied upon the information provided by the IC in its Interconnection Request. Additional study assumptions are provided in Appendix B. 4.0 Study Results and Required Upgrades The project single line and the project location map showing the subject project within the BCTC transmission system are included in Appendix A for reference purposes. The power flow analysis indicates that the proposed new generation in the subject project does not result in BCTC equipment or lines exceeding design ratings. The short circuit assessment indicates that the proposed new generation in the subject project results in short circuit currents that do not generally exceed ratings of BCTC equipment. 5.0 Cost Estimate and Project Schedule Table 2 lists the facilities required for system upgrades to interconnect the proposed project to the BCTC transmission system. It also provides a non-binding good faith cost estimate for the interconnection costs. For the Feasibility Study, it is not possible to allocate the estimated interconnection costs between Network Upgrades (NU) and Transmission Provider Interconnection Facilities (TPIF). However, BCTC notes that Transmission Provider Interconnection Facilities are typically limited to a single span of transmission line entering the substation from the substation boundary. Table 2: Cost Estimate for the Required System Upgrades Work Definition Station Transmission Facilities One 60 kV Line Termination at LAJ Estimated Interconnection Cost (2009 dollars): Estimated Cost $ 3,169 k Page 2 of 6 SPPA2009 – 16
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Feasibility Study For XXXX Jamie Creek Hydroelectric Project (A077)

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