32nd largest plant in Arizona · 827th nationally
Yucca is a natural gas power plant in Arizona with a nameplate capacity of 417 MW. It generates roughly 236.5k MWh per year — enough to power about 22,528 average U.S. homes.
Its capacity factor of 6% reflects intermittent or peaking operation. At 842 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Yucca |
|---|---|
| Operator | Arizona Public Service Co |
| City | Yuma |
| County | Yuma County |
| State | Arizona |
| ZIP | 85364 |
| Coordinates | 32.72140, -114.71060 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST1 | Natural Gas Steam Turbine | Natural Gas | 86.7 MW | Operating | 1959 |
| GT3 | Natural Gas Fired Combustion Turbine | Natural Gas | 72.4 MW | Operating | 1973 |
| GT4 | Petroleum Liquids | Distillate Oil | 72.4 MW | Operating | 1974 |
| GT5 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2008 |
| GT6 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2008 |
| GT21 | Petroleum Liquids | Distillate Oil | 25.3 MW | Operating | 1978 |
| GT1 | Natural Gas Fired Combustion Turbine | Natural Gas | 22.3 MW | Operating | 1971 |
| GT2 | Natural Gas Fired Combustion Turbine | Natural Gas | 22.3 MW | Operating | 1971 |
| Owner | Location | Share |
|---|---|---|
| Imperial Irrigation District | Imperial, CA | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 99.5k metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 9 metric tons |
| CO₂ Rate | 842 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 | Arizona Public Service 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.