1st largest plant in Alaska · 935th nationally
George M Sullivan Generation Plant 2 is a natural gas power plant in Alaska with a nameplate capacity of 347 MW. It generates roughly 911.3k MWh per year — enough to power about 86,790 average U.S. homes.
Its capacity factor of 30% reflects intermittent or peaking operation. At 918 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 (347 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 | George M Sullivan Generation Plant 2 |
|---|---|
| Operator | Chugach Electric Assn Inc |
| City | Anchorage |
| County | Anchorage County |
| State | Alaska |
| ZIP | 99504 |
| Coordinates | 61.22971, -149.71674 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 7 | Natural Gas Fired Combustion Turbine | Natural Gas | 103 MW | Operating | 1979 |
| GT8 | Natural Gas Fired Combustion Turbine | Natural Gas | 92.6 MW | Standby | 1984 |
| 10 | Natural Gas Fired Combined Cycle | Natural Gas | 60.4 MW | Operating | 2017 |
| 9 | Natural Gas Fired Combined Cycle | Natural Gas | 60.4 MW | Standby | 2017 |
| 5 | Natural Gas Fired Combined Cycle | Natural Gas | 38.1 MW | Retired | 1975 |
| 6 | Natural Gas Fired Combined Cycle | Natural Gas | 33.0 MW | Retired | 1979 |
| 11 | Natural Gas Fired Combined Cycle | Natural Gas | 30.9 MW | Operating | 2017 |
| CO₂ | 418.1k metric tons |
|---|---|
| SO₂ | 3 metric tons |
| NOₓ | 1.2k metric tons |
| CO₂ Rate | 918 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.
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.