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619 MW Natural Gas operating in Maricopa, AZ — Salt River Project
619 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2003
Operating Since
Coordinates
32.9750, -112.6944
County
Maricopa, AZ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Salt River Project | Salt River Project | — |
| Owner(s) | Salt River Project | Salt River Project | — |
| Status | Operating | — | — |
Gila River Power Block 1 is a 619 MW natural gas-fired combined cycle power plant located in Maricopa County, Arizona. The plant began operating in 2003 and consists of 3 generators. It is owned and operated by Salt River Project (SRP). The plant is located within the Salt River Project balancing authority area and the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, Gila River Power Block 1 generated 2,561,038 MWh of electricity, achieving a capacity factor of 47.0%. The plant is ranked as the 16th largest in Arizona out of 26 plants, and 385th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
310.0K MWh
Latest Month
2.6M MWh
Annual Generation
47.0%
Capacity Factor
2013
$965/kW
Est. Construction Cost
Total estimated cost: $597.4M
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
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ask pi about Gila River Power Block 1Salt River Project (SRP)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility