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845.7 MW Conventional Steam Coal (204 MW) + Natural Gas Fired Combustion Turbine (356 MW) + Natural Gas Steam Turbine (286 MW) standby in Cochise, AZ — Western Area Power Administration - Desert Southwest Region
845.7 MW
Nameplate Capacity
11
Generators
units
Hybrid (3)
Technology
Conventional Steam Coal + Natural Gas Fired Combustion Turbine + Natural Gas Steam Turbine
1963
Operating Since
Coordinates
32.0603, -109.8931
County
Cochise, AZ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arizona Electric Pwr Coop Inc | — | — |
| Owner(s) | Arizona Electric Pwr Coop Inc | — | — |
| Status | Standby | — | — |
The Apache Power Plant is a 626-megawatt coal power plant and natural gas powered plant near Willcox, Arizona, United States, about 80 miles east of Tucson, Arizona. The plant is jointly owned by Arizona Electric Power Cooperative (AEPCO). The plant began operations in 1964.
Read more on WikipediaApache Station is a hybrid power plant located in Cochise County, Arizona. The plant is owned and operated by Arizona Electric Power Cooperative Inc. It has a total capacity of 826.3 MW across 11 generators, utilizing a mix of technologies including conventional steam coal, natural gas fired combustion turbine, and natural gas steam turbine. The plant began operating in 1963 and primarily runs on natural gas (NG).
In the most recent year of data, Apache Station generated 2,156,520 MWh of electricity, achieving a capacity factor of 29.7%. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region and is under the balancing authority of the Western Area Power Administration - Desert Southwest Region. Apache Station is ranked as the 5th largest power plant out of 26 in Arizona, and 233rd out of 945 nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Western Area Power Administration - Desert Southwest Region (WALC)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
124.4K MWh
Latest Month
2.2M MWh
Annual Generation
29.7%
Capacity Factor
CO₂ Intensity
1496 lb/MWh
NOx
1 lb/MWh
SO₂
0.140 lb/MWh
CH₄
0.089 lb/MWh
N₂O
0.012 lb/MWh
Capacity Factor
34.3%
Annual Net Gen
1982 GWh
CO₂eq
1502 lb/MWh
Subregion
WECC Southwest
2013
$965/kW
Est. Construction Cost
Total estimated cost: $816.2M
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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