SORE CANYON PUMPED STORAGE HYDRO

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AFTERBAY RESERVOIR

• Disturbed Area: 44.4-hectares
• Upper-Level Liquid Area: 325,000-m2 (32.5-hectares)
• Bottom-Level Liquid Area: 2,000-m2 (2.0-hectares)
• Liquid Depth: 64.0-m, Freeboard: 1.0-m (Above Upper Liquid Level)
• Average (50% of Volume) Liquid Depth: 36-m
• Liquid Storage: 1,046 hectare-meters
• Dam Type: Rockfill with concrete face (Balanced Cut & Fill),Spillway: To Be Determined
• Annual Evaporation: 21 hectare-meters (1.3-meters per year)
• Rain/Snow Catchment Area: 1,295-hectares, Annual Moisture (3”): 99 hectare-meters

FOREBAY RESERVOIR

• Disturbed Area: 71.6-hectares
• Upper-Level Liquid Area: 330,000-m2 (33.0-hectares)
• Bottom-Level Liquid Area: 87,000-m2 (8.7-hectares)
• Liquid Depth: 50.0-m, Freeboard: 1.0-m (Above Upper Liquid Level)
• Average (50% of Volume) Liquid Depth: 28-m
• Liquid Storage: 1,046 hectare-meters
• Dam Type: Rockfill with concrete face (Balanced Cut & Fill),Spillway: To Be Determined
• Annual Evaporation: 27 hectare-meters (1.3-meters per year)
• Rain/Snow Catchment Area: negligible, Annual Moisture: negligible

RESERVOIR HEAD DATA

• Average Static Head: 1,157-meters
• Maximum Falling Head: 1,214-meters
• Minimum Falling head: 1,100-meters

POWERHOUSE, FLOWS and EQUIPMENT

• Ternary Type PSH with single speed sync Motor/Generators
• No. Powerhouses: 2
• Total No. Turbine/Pump Units: 6 (3-Units per Powerhouse)
• Water Flow per Turbine/Pump Unit: 29.4-m3/sec, All Turbines: 176.5-m3/sec
• Maximum Power Output: 2-GW
• Maximum Duration (Based on Reservoir): 12-hrs
• Annual Power Generation: 12-hr. Periods: 8,760-GWh, 10-hr. Periods: 7,300-GWh
• Pump Cycle Efficiency: 87.2%
• Turbine Cycle Efficiency: 88.6%
• Round Trip Efficiency (RTE) with losses and Leakage: 77.1%
• Motor/Generator Units: 382-MW

UNDERGROUND EXCAVATIONS

• Access Tunnel Network: 8,640-m
• Tailrace Discharge Branches: 3,580-m
• Powerhouse Tailraces, Penstocks, Accesses: 2,260-m
• Intake Shafts: 1,274-m
• Discharge Shafts: 43-m
• Secondary Ventilation/Access Shaft: 1,270m

ELECTRICAL and TRANSMISSION

• Generator output underground 23kV, increased to 500kv at an underground substation
• Surface substation will reduce to a 500kV OH line, 53-km in length
• 2,000MW will be delivered via the 500kV OH line
• The high voltage lines will deliver to the connection with a VD of less than 2-percent
• Generators Power Factor: 87.5% Lagging

MISCELLANEOUS

• Required new road construction Forebay: 19-km
• Required new road construction Afterbay: 10-km
• Makeup water: There is some water flowing in Sore Canyon and a well field will be considered in the alluvial.
• Project located on: Private land
• Makeup water pumping requirements is 66.2-m3/hr. pumping 20-hrs/day