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1326 MW Natural Gas operating in Maricopa, AZ — Salt River Project
1,326 MW
Nameplate Capacity
9
Generators
units
Natural Gas Fired Combined Cycle
Technology
1974
Operating Since
Coordinates
33.3325, -111.7503
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 | — | — |
The Santan power plant is a 1,326 MW natural gas-fired combined cycle facility located in Maricopa County, Arizona. It began operating in 1974 and is owned and operated by Salt River Project (SRP). The plant consists of 9 generators utilizing natural gas as its primary fuel source. Santan ranks as the largest power plant in Arizona out of 26 facilities, and it holds the 82nd position nationally among 945 plants.
In the latest year with available data, Santan generated 4,640,811 MWh of electricity, achieving a capacity factor of 39.9%. The plant operates within the Salt River Project balancing authority area and is part of the Western Electricity Coordinating Council (WECC) NERC region.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
162.6K MWh
Latest Month
4.6M MWh
Annual Generation
39.9%
Capacity Factor
CO₂ Intensity
719 lb/MWh
NOx
0.037 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $1.3B
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-04-09
View all articlesNo ask pi reports yet for this entity.
ask pi about SantanSalt River Project (SRP)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
0.004 lb/MWh
CH₄
0.017 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
49.0%
Annual Net Gen
5697 GWh
CO₂eq
720 lb/MWh
Subregion
WECC Southwest