19th largest plant in Arizona · 548th nationally
Apache Station is a coal power plant in Arizona with a nameplate capacity of 661 MW. It generates roughly 2.0M MWh per year — enough to power about 188,797 average U.S. homes.
Its capacity factor of 34% reflects intermittent or peaking operation. At 1496 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (661 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Apache Station |
|---|---|
| Operator | Arizona Electric Pwr Coop Inc |
| City | Cochise |
| County | Cochise County |
| State | Arizona |
| ZIP | 85606 |
| Coordinates | 32.06030, -109.89310 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST2 | Natural Gas Steam Turbine | Natural Gas | 204 MW | Operating | 1979 |
| ST3 | Conventional Steam Coal | Subbituminous Coal | 204 MW | Operating | 1979 |
| ST1 | Natural Gas Steam Turbine | Natural Gas | 81.6 MW | Standby | 1964 |
| GT3 | Natural Gas Fired Combustion Turbine | Natural Gas | 78.7 MW | Standby | 1975 |
| GT4 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Standby | 2002 |
| GT5 | Natural Gas Fired Combustion Turbine | Natural Gas | 41.4 MW | Under Construction | — |
| GT6 | Natural Gas Fired Combustion Turbine | Natural Gas | 41.4 MW | Under Construction | — |
| GT7 | Natural Gas Fired Combustion Turbine | Natural Gas | 41.4 MW | Planned | — |
| GT8 | Natural Gas Fired Combustion Turbine | Natural Gas | 41.4 MW | Planned | — |
| GT2 | Natural Gas Fired Combustion Turbine | Natural Gas | 20.4 MW | Standby | 1972 |
| GT1 | Natural Gas Fired Combustion Turbine | Natural Gas | 11.5 MW | Standby | 1963 |
| CO₂ | 1.5M metric tons |
|---|---|
| SO₂ | 139 metric tons |
| NOₓ | 1.2k metric tons |
| CO₂ Rate | 1496 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | WECC |
|---|---|
| Balancing Authority | Western Area Power Administration - Desert Southwest Region |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.