13th largest plant in Washington · 484th nationally
Grays Harbor Energy Facility is a natural gas power plant in Washington with a nameplate capacity of 715 MW. It generates roughly 3.6M MWh per year — enough to power about 344,587 average U.S. homes.
Its capacity factor of 58% puts it in the middle range — running steadily but not full-time. At 851 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 (715 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 | Grays Harbor Energy Facility |
|---|---|
| Operator | Invenergy Services Llc |
| City | Elma |
| County | Grays Harbor County |
| State | Washington |
| ZIP | 98541 |
| Coordinates | 46.96920, -123.48000 |
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 Fired Combined Cycle | Natural Gas | 317 MW | Operating | 2008 |
| CT1 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2008 |
| CT2 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2008 |
| CO₂ | 1.5M metric tons |
|---|---|
| SO₂ | 10 metric tons |
| NOₓ | 90 metric tons |
| CO₂ Rate | 851 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 | Bonneville Power Administration |
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.