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PUMPED STORAGE HYDRO PSH

STORING DISPATCHABLE POWER

  

Closed and Open Loop Pumped Storages operate with an upper and lower reservoir of water that is continually pumped and drained from one reservoir to the other. The pump/turbine is used to pump water up to the upper reservoir during the low peak periods. The water drains from the upper reservoir, through the turbine, to the lower reservoir generating energy during the high peak periods. PSH facility operation's depend on their reservoir sizes, producing clean reusable dispatchable energy.

HOW DOES PUMPED STORAGE HYDROPOWER WORK

LOCATIONS

All Projects Presentation clicK here

SORE CANYON PUMPED STORAGE HYDRO

2,000-MW PROPOSED PROJECT

   

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

SORE CANYON more info CLICK HERE

ESCONDIDO CANYON PUMPED STORAGE HYDRO

2,000-MW PROPOSED PROJECT

AFTERBAY RESERVOIR

  • Disturbed Area: 216-acres
  • Upper-Level Liquid Area: 3,922,575-ft2 (90.1-acres)
  • Bottom-Level Liquid Area: 3,726,446-ft2 (85.5-acres)
  • Liquid Depth: 95-ft, Freeboard: 5.0-ft (Above Upper Liquid Level)
  • Average (50% of Volume) Liquid Depth: 53-ft
  • Liquid Storage: 8,449 acre-ft
  • Dam Type: RCC-Roller Compacted Concrete, Spillway: To Be Determined
  • Annual Evaporation: 375 acre-feet (51-in. per year)
  • Rain/Snow Catchment Area: n/a


FOREBAY RESERVOIR

  • Disturbed Area: 157-acres
  • Top-Level Liquid Area: 3,970,502-ft2 (91.2-acres)
  • Bottom-Level Liquid Area: 3,771,977-ft2 (86.6-acres)
  • Average (50% of Volume) Liquid Depth: 53-ft
  • Liquid Depth: 95-ft, Freeboard: 5.0-ft (Above Upper Liquid Level)
  • Liquid Storage: 8,449 acre-ft
  • Dam Type: RCC-Roller Compacted Concrete, Spillway: To Be Determined
  • Annual Evaporation: 379 acre-feet (51-in. per year)
  • Rain/Snow Catchment Area: n/a


RESERVOIR HEAD DATA

  • Average Static Head: 3,290-feet
  • Maximum Falling Head: 3,195-feet
  • Minimum Falling head: 2,137-feet


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: 537,854-gpm, All Turbines: 3,227,122-gpm
  • 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: 88.5%
  • Round Trip Efficiency (RTE) with losses and Leakage: 77.0%
  • Motor/Generator Units: 382-MW


UNDERGROUND EXCAVATIONS

  • Access Tunnel Network: 19,430-ft
  • Tailrace Discharge Branches: 5,190-ft
  • Powerhouse Tailraces, Penstocks, Accesses: 4,520-ft
  • Intake Shafts: 3,585’
  • Discharge Shafts: 141’
  • Secondary Ventilation/Access Shaft: 3,500-ft.


ELECTRICAL and TRANSMISSION

  • Generator output underground 23kV, increased to 500kv at an underground substation
  • Surface substation will reduce to a 345kV OH line feeding Las Cruces, NM (67-miles) and a 345kV OH line feeding (11m) Artesia - El Paso OH Lines.
  • 667MW will be delivered to Las Cruces, and 1,334MW via the Artesia and El Paso line. The PSH unit will have the capacity to deliver 2,000MW once the Las Cruces, or the Artesia - El Paso line is upgraded to 500kV.
  • Both high voltage lines will deliver to the connection with a VD of less than 2-percent
  • Generators Power Factor: 88.4% Lagging


MISCELLANEOUS

  • Required road construction to Forebay: 1.4-miles
  • Required new road construction Forebay: 5-miles
  • Required road construction to Afterbay: 1.0-miles
  • Required new road construction Afterbay: 5-miles
  • Water well development: Alluvium adjacent to afterbay site
  • Project located on: USFS-Lincoln National Forest, project area 5,209-acres (1/8 section rule, includes roads)
  • Makeup water pumping requirements is 565-gpm for 20-hrs/day
  • FERC Preliminary Permit awarded Oct 4, 2024.

ESCONDIDO CANYON more info CLICK HERE

RED LAKE PUMPED STORAGE HYDRO

3,000-MW PROPOSED PROJECT

AFTERBAY RESERVOIR 

• Disturbed Area: 395-acres

• Upper-Level Liquid Area: 7,976,947-ft2 (183-acres)

• Bottom-Level Liquid Area: 5,019,662-ft2 (115-acres)

• Liquid Depth: 136-ft, Freeboard: 7.0-ft (Above Upper Liquid Level)

• Average (50% of Volume) Liquid Depth: 80-ft

• Liquid Storage: 23,000 acre-ft

• Dam Type: Rockfill (Balanced Cut & Fill),Spillway: To Be Determined

• Annual Evaporation: 323 acre-feet with covers

• Rain/Snow Catchment Area: 3,100-acres, Annual Moisture: 1,500 acre-feet 


 FOREBAY RESERVOIR 

• Disturbed Area: 327-acres

• Top-Level Liquid Area: 12,513,122-ft2 (287-acres)

• Bottom-Level Liquid Area: 2,574,835-ft2 (59-acres)

• Average (50% of Volume) Liquid Depth: 75-ft

• Liquid Depth: 126-ft, Freeboard: 7.0-ft (Above Upper Liquid Level)

• Liquid Storage: 23,000 acre-ft

• Dam Type: Rockfill (Balanced Cut & Fill), Spillway: To Be Determined

• Annual Evaporation: 988 acre-feet

• Rain/Snow Catchment Area: 1,000-acres, Annual Moisture: 500 acre-feet 


 RESERVOIR HEAD DATA 

•  Average Static Head: 2,274-feet

•  Maximum Falling Head: 2,413-feet

•  Minimum Falling head: 2,137-feet


 POWERHOUSE, FLOWS and EQUIPMENT 

• Conventional Francis Turbines with single speed pumps with synchronized Motor/Generators

• No. Powerhouses: 3

• Total No. Turbine/Pump Units: 12 (6-Units per Powerhouse)

• Water Flow per Turbine/Pump Unit: 537,200-gpm, All Turbines: 6,446,300-gpm

• Maximum Power Output: 3-GW

• Maximum Duration (Based on Reservoir): 12-hrs

• Annual Power Generation: 12-hr. Periods: 13,140-GWh, 8-hr. Periods: 8,760-GWh

• Pump Cycle EEiciency: 87.6%

• Turbine Cycle EEiciency: 88.8%

• Round Trip EEiciency (RTE) with losses and Leakage: 77.4%

• Motor/Generator Units: 300-MW


 UNDERGROUND EXCAVATIONS 

• Access Tunnel Network: 25,800-ft

• Tailrace Discharge Branches: 24,422-ft

• Powerhouse Tailraces, Penstocks, Accesses: 6,578-ft

• Intake Shafts: 2 x 2,535’

• Discharge Shafts: 2 x 135’

• Secondary Ventilation/Access Shaft: 2,100-ft.   


 ELECTRICAL and TRANSMISSION 

• Generator output underground 23kV, increased to 500kv at an underground substation

• Site surface substation will reduce to a two 500kV OH lines

• Each line extending from site to connecting sub station is 6.2-miles in length

• Transmission Line connecting substation will reduce to a 500kV OH line and a 345kV OH 

   lines.

• 2,250MW will be delivered via the 500kV OH line, 750MW via the 345kV OH line

• Both high voltage lines will deliver to the connection with a VD of less than 2-percent

• Generators Power Factor: 83.2% Lagging


 MISCELLANEOUS 

• Required road upgrade/rehabilitation Forebay: 12-miles

• Required new road construction Forebay: 1.9-miles (plus 4-miles in site roads)

• Required new road construction Afterbay: 3.5-miles (plus 3-miles in site roads)

• Water well development: Red Lake, 6.7-mile pipeline to site

• Project located on: BLM land, project area 5,373-acres (1/8 section rule, includes roads) 

• Makeup water pumping requirements is 1,400-gpm for 20-hrs/day

  

FERC Preliminary Permit Awarded on Oct 15 2024 

RED LAKE more info CLICK HERE

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