Read Santa Catalina Island Repower Feasibility Study Appendices
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SANTA CATALINA ISLAND REPOWER FEASIBILITY STUDY APPENDIX AUGUST 2020 Prepared For: SOUTHERN CALIFORNIA EDISON Mr. Matthew Zents, PE Project Manager Southern California Edison 1515 Walnut Grove Avenue Rosemead, CA 91770 Santa Catalina Island Los Angeles County, California PROJECT NUMBER 226818-0000432.02 APPENDIX A Power Plant Generation Cost Estimates B Fossil Fuel Generation Electrical Drawings C Renewable Energy Site Matrix D CPUC Fire Threat Map and SCE Overhead Distribution Line Standards E Grid Upgrades Cost Estimate F 60% Renewable Microgrid Single-Line Diagram G Undersea Cable ROM OPC H Undersea Cable Schedule I Undersea Cable Miscellaneous J NREL Phases I & II Summary Report K Domestic (Residential) Cost Estimates L Water Systems Cost Estimates M Received Items Log N Additional Permitting Information Project Number 226818-0000432.02 NV5.COM APPENDIX A – POWER PLANT GENERATION COST ESTIMATES Project Number 226818-0000432.02 NV5.COM COST ESTIMATE DETAIL Disclaimer: The cost estimates within this document are preliminary and based on the best information available at the time of this report. The estimates are subject to change as plans are developed or modified. Electrical 2.4 kV System Bay 7 Site Site Adjusted Cost Number Units $/Unit Total Adjustment High Low Underground raceway to 2,400V Swgr, LV and MV Demolition $ 80,800 Y $ 242,400 $ 161,600 Pavement removal and repair 1 LT $ 21,500 $ 21,500 Y $ 64,500 $ 43,000 Trench, 2.5 FT x 2 FT 325 LF $ 4.40 $ 1,500 Y $ 4,500 $ 3,000 Reinforced concrete ductbank 50 CY $ 4,310 $ 215,500 Y $ 215,500 $ 215,500 four 4 IN PVC 1400 LF $ 21.60 $ 30,300 Y $ 90,900 $ 60,600 four 2 IN PVC 1400 LF $ 8.70 $ 12,200 Y $ 36,600 $ 24,400 4/0 bare CU ground wire in ductbank 360 LF $ 8.70 $ 3,200 Y $ 9,600 $ 6,400 Cable 500 kcmil, 5 kV, EPR/PVC shld, 2/PH 2400 LF $ 21.60 $ 51,900 Y $ 155,700 $ 103,800 15 kV terminations 12 EA $ 351 $ 4,300 Y $ 12,900 $ 8,600 Circuits/Controls LV power, control, metering and relaying circuits 1 LT $ 161,600 $ 161,600 Y $ 484,800 $ 323,200 Relay settings, relays and equipment testing 1 LT $ 32,400 $ 32,400 Y $ 97,200 $ 64,800 Rework raceways to plant 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Grounding 1 LT $ 10,800 $ 10,800 Y $ 32,400 $ 21,600 Comm circuits and Ovation Integration 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Total $ 773,800 $ 1,770,400 $ 1,252,100 Project Number 226818-0000432.02 NV5.COM 2.4 kV System, continued Bay 8 Site Site Adjusted Cost Number Units $/Unit Total Adjustment High Low Underground raceway to 2,400 Swgr, LV and MV Demolition $ 80,800 Y $ 242,400 $ 161,600 Pavement removal and repair 1 LT $ 21,500 $ 21,500 Y $ 64,500 $ 43,000 Trench, 2.5 FT x 2 FT 100 LF $ 4.40 $ 440 Y $ 1,500 $ 1,000 Reinforced concrete ductbank 12 CY $ 4,310 $ 51,800 N $ 51,800 $ 51,800 four 4 IN PVC 400 LF $ 21.60 $ 8,700 Y $ 26,100 $ 17,400 four 2 IN PVC 400 LF $ 8.70 $ 3,500 Y $ 10,500 $ 7,000 4/0 bare CU ground wire in ductbank 120 LF $ 8.70 $ 1,100 Y $ 3,300 $ 2,200 Cable 500 kcmil, 5 kV, EPR/PVC shld, 2/PH 750 LF $ 21.60 $ 16,200 Y $ 48,600 $ 32,400 15 kV terminations 12 EA $ 351 $ 4,300 Y $ 12,900 $ 8,600 Circuits/Controls Y LV power, control, metering and relaying circuits 1 LT $ 134,700 $ 134,700 Y $ 404,100 $ 269,400 Relay settings, relays and equipment testing 1 LT $ 32,400 $ 32,400 Y $ 97,200 $ 64,800 Rework raceways to plant 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Grounding 1 LT $ 10,800 $ 10,800 Y $ 32,400 $ 21,600 Comm circuits and Ovation Integration 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Total $ 474,100 $ 1,318,700 $ 896,400 Project Number 226818-0000432.02 NV5.COM 2.4 kV System, continued Bay 10 Site Site Adjusted Cost Number Units High High Adjustment High Low Underground raceway to 2,400 Swgr, LV and MV Demolition $ 80,800 Y $ 242,400 $ 161,600 Pavement removal and repair 1 LT $ 21,500 $ 21,500 Y $ 64,500 $ 43,000 Trench, 2.5 FT x 2 FT 150 LF $ 4.40 $ 700 Y $ 2,100 $ 1,400 Reinforced concrete ductbank 23 CY $ 4,310 $ 99,200 Y $ 99,200 $ 99,200 four 4 IN PVC 600 LF $ 21.60 $ 13,000 Y $ 39,000 $ 26,000 four 2 IN PVC 600 LF $ 8.70 $ 5,300 Y $ 15,900 $ 10,600 4/0 bare CU ground wire in ductbank 200 LF $ 8.70 $ 1,800 Y $ 5,400 $ 3,600 Cable 500 kcmil, 5 kV, EPR/PVC shld, 2/PH 1125 LF $ 21.60 $ 24,300 Y $ 72,900 $ 48,600 15 kV terminations 12 EA $ 351 $ 4,300 Y $ 12,900 $ 8,600 Circuits/Controls LV power, control, metering and relaying circuits 1 LT $ 161,600 $ 161,600 Y $ 484,800 $ 323,200 Relay settings, relays and equipment testing 1 LT $ 32,400 $ 32,400 Y $ 97,200 $ 64,800 Rework raceways to plant 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Grounding 1 LT $ 10,800 $ 10,800 Y $ 32,400 $ 21,600 Comm circuits and Ovation Integration 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Total $ 563,500 $ 1,492,100 $ 1,027,800 Project Number 226818-0000432.02 NV5.COM 2.4 kV System, continued Bay 12 Site Site Adjusted Cost Number Units $/Unit Total Adjustment High Low Underground raceway to 2,400 Swgr, LV and MV Demolition $ 80,800 Y $ 242,400 $ 161,600 Pavement removal and repair 1 LT $ 21,500 $ 21,500 Y $ 64,500 $ 43,000 Trench, 2.5 FT x 2 FT 300 LF $ 4.40 $ 1,400 Y $ 4,200 $ 2,800 Reinforced concrete ductbank 46 CY $ 431 $ 198,300 Y $ 198,300 $ 198,300 four 4 IN PVC 1200 LF $ 21.60 $ 26,000 Y $ 78,000 $ 52,000 four 2 IN PVC 1200 LF $ 8.70 $ 10,500 Y $ 31,500 $ 21,000 4/0 bare CU ground wire in ductbank 340 LF $ 8.70 $ 3,000 Y $ 9,000 $ 6,000 Cable 500 kcmil, 5 kV, EPR/PVC shld, 2/PH 2160 LF $ 21.60 $ 46,700 Y $ 140,100 $ 93,400 15 kV terminations 12 EA $ 351 $ 4,300 Y $ 12,900 $ 8,600 Circuits/Controls Y LV power, control, metering and relaying circuits 1 LT $ 161,600 $ 161,600 Y $ 484,800 $ 323,200 Relay settings, relays and equipment testing 1 LT $ 32,400 $ 32,400 Y $ 97,200 $ 64,800 Rework raceways to plant 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Grounding 1 LT $ 10,800 $ 10,800 Y $ 32,400 $ 21,600 Comm circuits and Ovation Integration 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Total $ 705,100 $ 1,718,700 $ 1,211,900 Project Number 226818-0000432.02 NV5.COM 12 kV System Bay 14 Site Site Adjusted Cost Number Units $/Unit Total Adjustment High Low Underground raceway to 12kV Swgr, LV and MV Demolition $ 80,800 Y $ 242,400 $ 161,600 Pavement removal and repair 1 LT $ 32,300 $ 32,300 Y $ 96,900 $ 64,600 Trench, 2.5 FT x 2 FT 250 LF $ 4.40 $ 1,100 Y $ 3,300 $ 2,200 Reinforced concrete ductbank 38 CY $ 4,310 $ 163,800 Y $ 163,800 $ 163,800 four 4 IN PVC 1700 LF $ 21.60 $ 36,800 Y $ 110,400 $ 73,600 four 2 IN PVC 1700 LF $ 8.70 $ 14,800 Y $ 44,400 $ 29,600 4/0 bare CU ground wire in ductbank 425 LF $ 8.70 $ 3,700 Y $ 11,100 $ 7,400 Cable #3/0 15 kV, EPR/EPC shld 950 LF $ 21.60 $ 20,600 Y $ 61,800 $ 41,200 15 kV terminations 6 EA $ 351 $ 2,200 Y $ 6,600 $ 4,400 Circuits/Controls 15 kV Switchgear LV power, control, metering and relaying circuits 1 LT $ 134,700 $ 134,700 Y $ 404,100 $ 269,400 Relay settings, relays and equipment Testing 1 LT $ 32,400 $ 32,400 Y $ 97,200 $ 64,800 Rework raceways to plant 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Grounding 1 LT $ 10,800 $ 10,800 Y $ 32,400 $ 21,600 Comm circuits and Ovation Integration 1 LT $ 53,900 $ 53,900 Y $ 161,700 $ 107,800 Total $ 641,800 $ 1,597,800 $ 1,119,800 Project Number 226818-0000432.02 NV5.COM 240 V Plant Auxiliary System Number Unit of Site Site Adjusted Cost Replace Existing SLP Transformer and Swbrd BA Total of Units Measure Adjustment High Low Demolish existing electric equipment and work 1 LT $ 107,700 Y $ 323,100 $ 215,400 450 kW diesel engine-gen, installed 1 LT $ 215,400 Y $ 646,200 $ 430,800 Air compressor 4 VFD and Electric Work 1 LT $ 107,700 Y $ 323,100 $ 215,400 Switchboard BA and transformer, installed 1 EA $ 510,500 Y $ 1,531,500 $ 1,021,000 Electric work 1 LT $ 161,600 Y $ 484,800 $ 323,200 240 V Plant Auxiliary System Total $ 1,102,900 $ 3,308,700 $ 2,205,800 Note: Needed to support electrical requirements for propane or LNG options.