Gila River Power Block 1 — Plant Summary
- EIA Plant ID
- 59338
- Capacity
- 619 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combined Cycle
- Status
- Operating
- Location
- Maricopa, AZ
- Operating Since
- 2003
- Generators
- 3
- Operator
- Salt River Project
- Parent Company
- Salt River Project
- Annual Generation
- 2,561,038 MWh
- Capacity Factor
- 47.0%
- Balancing Authority
- Salt River Project
- ISO/RTO
- —
- NERC Region
- WECC
Gila River Power Block 1
OperatingNatural Gas
Ranked #18 of 33 Natural Gas plants in AZ#381 of 2009 nationally
619 MW Natural Gas operating in Maricopa, AZ — Salt River Project
EIAWD
619 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2003
Operating Since
Location
Coordinates
32.9750, -112.6944
County
Maricopa, AZ
Nearby Plants
- Gila River Power Block 4Natural Gas619 MW · 0.0 km
- Gila River Power Block 3Natural Gas619 MW · 0.0 km
- Gila River Power Block 2Natural Gas619 MW · 0.0 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Salt River Project | Salt River Project | — |
| Owner(s) | Salt River Project | Salt River Project | — |
| Status | Operating | — | — |
Ownership Chain
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Salt River Project
Grid Voltage
500 kV
Regulatory Status
RE
Entity Type
Political Subdivision
Sector
Electric Utility
Generation
310.0K MWh
Latest Month
2.6M MWh
Annual Generation
47.0%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
Arizona solar policy hinges on this year’s Salt River Project elections
The vote, which takes place between March 11 and April 7, will determine the leadership of the Salt River Project and could have profound...
pv magazine USA·2 weeks ago
Deals·m and a
SRP buys Gila Bend gas facility for $330M | Latest News
The Salt River Project's purchase Friday of two 550-megawatt natural gas generating units at the Gila River Power Station near Gila Bend shows the group is...
SRP (buyer)Salt River Project (buyer)
White Mountain Independent·4 weeks ago
General
Winter storm pushes US power grid to brink as operators take emergency measures
A massive storm spanning 2300 miles is forcing grid operators to take measures to prevent rolling blackouts.
FOX 10 Phoenix·2 months ago
General
Winter storm pushes US power grid to brink as operators take emergency measures
A massive storm spanning 2300 miles is forcing grid operators to take measures to prevent rolling blackouts.
FOX 10 Phoenix·2 months ago
Last updated 2026-03-26
View all 10 articles