88th largest plant in Washington · 4943rd nationally
Sierra Pacific Aberdeen is a biomass power plant in Washington with a nameplate capacity of 18.0 MW. It generates roughly 105.2k MWh per year — enough to power about 10,014 average U.S. homes.
Its capacity factor of 67% puts it in the middle range — running steadily but not full-time.
Ghost bars are each month's theoretical maximum (18.0 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 | Sierra Pacific Aberdeen |
|---|---|
| Operator | Sierra Pacific Industries |
| City | Aberdeen |
| County | Grays Harbor County |
| State | Washington |
| ZIP | 98520 |
| Coordinates | 46.97280, -123.77390 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN1 | Wood/Wood Waste Biomass | Wood/Wood Waste | 18.0 MW | Operating | 2003 |
| SO₂ | 7 metric tons |
|---|---|
| NOₓ | 28 metric tons |
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 |
Biomass plants burn wood, agricultural waste, or methane from landfills to generate steam and electricity. They are considered carbon-neutral over long timescales when fuel is sustainably sourced, but they produce particulate emissions similar to coal.