54th largest plant in Arizona · 2186th nationally
Black Mountain Generating Station is a natural gas power plant in Arizona with a nameplate capacity of 121 MW. It generates roughly 94.9k MWh per year — enough to power about 9,038 average U.S. homes.
Its capacity factor of 9% reflects intermittent or peaking operation. At 1267 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Black Mountain Generating Station |
|---|---|
| Operator | Uns Electric, Inc |
| City | Golden Valley |
| County | Mohave County |
| State | Arizona |
| ZIP | 86413 |
| Coordinates | 35.03610, -114.15940 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2008 |
| 2 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2008 |
| CO₂ | 60.1k metric tons |
|---|---|
| SO₂ | 2 metric tons |
| NOₓ | 52 metric tons |
| CO₂ Rate | 1267 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 | Tucson Electric Power Company |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.