5th largest plant in Idaho · 1155th nationally
Evander Andrews Power Complex is a natural gas power plant in Idaho with a nameplate capacity of 271 MW. It generates roughly 566.7k MWh per year — enough to power about 53,968 average U.S. homes.
Its capacity factor of 24% reflects intermittent or peaking operation. At 1287 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Evander Andrews Power Complex |
|---|---|
| Operator | Idaho Power Co |
| City | Mountain Home |
| County | Elmore County |
| State | Idaho |
| ZIP | 83647 |
| Coordinates | 43.17918, -115.73431 |
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 | 179 MW | Operating | 2008 |
| 2 | Natural Gas Fired Combustion Turbine | Natural Gas | 45.9 MW | Operating | 2001 |
| 3 | Natural Gas Fired Combustion Turbine | Natural Gas | 45.9 MW | Operating | 2001 |
| CO₂ | 364.7k metric tons |
|---|---|
| SO₂ | 2 metric tons |
| NOₓ | 134 metric tons |
| CO₂ Rate | 1287 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 | Idaho 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.