APACHE STATION
OperatingNatural Gas power plant
- Capacity
- 661 MW
- Primary fuel
- Natural Gas
- County
- Cochise County
- Operator
- ARIZONA ELECTRIC PWR COOP INC
- Status
- Operating
- Commissioned
- 1963
- EIA plant ID
- 160
- Generators
- 7
- Largest technology
- Natural Gas Steam Turbine
- Net generation (2024)
- 2,322 GWh
- Capacity factor (2024, EIA nameplate)
- 40%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 32.0603, -109.8931
APACHE STATION, a 661 MW Natural Gas power plant in Cochise County, Arizona. Operated by ARIZONA ELECTRIC PWR COOP INC, commissioned 1963.
How APACHE STATION compares
With 661 MW of capacity, APACHE STATION ranks 19th among the 71 operating power plants Bywatts maps in Arizona and 14th of the 23 operating Natural Gas plants in the state. It accounts for about 4.1% of Arizona's operating Natural Gas capacity and 2.3% of all operating capacity in the state. Nationally it is the 221st-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1963, it is older than 84% of the 69 operating Arizona plants with a recorded commissioning year. It shares Cochise County with 2 other operating plants, RED HORSE 2 and FORT HUACHUCA SOLAR PV PROJECT.
EIA-860 lists 7 generators at the site with 661 MW of nameplate capacity, led by natural gas steam turbine technology. Net generation was 2,322 GWh in 2024 (a 40% capacity factor), up 18% from 2022. Its generators came online between 1963 and 2002.
Grid neighborhood
The nearest named substation is APACHE (230 kV), under 0.1 miles away; the closest transmission line found within 10 miles is a 115 kV line owned by SULPHUR SPRINGS VALLEY ELECTRIC COOPERATIVE, under 0.1 miles away. One other operating power plant sits within 25 miles: RED HORSE 2 (85 MW, Solar).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
APACHE STATION is a 661 MW natural gas power plant in Cochise County, AZ, operated by ARIZONA ELECTRIC PWR COOP INC, commissioned in 1963. Cochise County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.7 of 5 at the 18th national percentile. Wildfire is the leading peril, rated Relatively High by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Cochise County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 98th | 4.9 of 5 | <0.01 |
| Riverine flooding | Relatively High | 90th | 4.6 of 5 | 6.2 |
| Heat wave | Relatively High | 55th | 3.2 of 5 | 2.4 |
| Earthquake | Relatively Low | 51st | 3.1 of 5 | <0.01 |
| Strong wind | Relatively Moderate | 39th | 2.5 of 5 | 0.58 |
| Hurricane | Very Low | 13th | 1.5 of 5 | 0.03 |
| Hail | Very Low | 11th | 1.5 of 5 | 0.27 |
| Lightning | Very High | 11th | 1.4 of 5 | 56.2 |
| Tornado | Very Low | 4th | 1.2 of 5 | 0.16 |
| Winter weather | Very Low | 4th | 1.2 of 5 | 4.3 |
Perils not assessed in Cochise County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
| Ice storm | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Cochise County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.