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Mormon Flat — Power plant · Pumped hydro storage · Salt River Project
  • Storage
  • Operating
  • 10 · 100 · 1,000 MW

Mormon Flat

Power plant · Pumped hydro storage

Key facts

Power plant · Pumped hydro storageran 8% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1926
Net generation, 2025
45,690 MWh
Grid
115 kV to Salt River Project (SRP)
Location
Maricopa County, Arizona
Operated by
Salt River ProjectSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2026

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Pumped hydro storage source: “Hydroelectric Pumped Storage”
Age
100 years since 1926
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Gem
Unit ids
G100001027537
Location id
L100001023332
Grid
Nerc region
WECC
Report year
2025
Grid voltage kv
115
Transmission owner
Salt River Project
Balancing authority code
SRP
Balancing authority name
Salt River Project
Fuel burned (MMBtu), 202553,101
Capacity factor, 20250.082
Net generation (MWh), 202545,690
Balancing authority codeSRP

Timeline

  • In service · EIA-860M

Sources

4 sources

Sources EIA-860M · GEM · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

Every source and license · Attribution

View at source