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United States › Power plants › Hydroelectric plants › Arizona

HYDROELECTRIC PLANTS

Mormon Flat

Mormon Flat is a 63.5 MW operating hydroelectric plant in Maricopa County, Arizona, operated by Salt River Project.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingMay 1926 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
MF2Hydroelectric Pumped Storage54 MW OperatingJun 1971
MF1Conventional Hydroelectric9.2 MW OperatingMay 1926

Plant details

Operator
Salt River Project
Location
Maricopa County, Arizona
Balancing authority
SRP
Sector
Electric Utility
Capacity
Operating: 63.5 MW
First unit online
May 1926
EIA plant ID
148

Location

33.5536, -111.4431

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem