10th largest plant in Nevada · 658th nationally
North Valmy is a coal power plant in Nevada with a nameplate capacity of 567 MW. It generates roughly 981.8k MWh per year — enough to power about 93,502 average U.S. homes.
Its capacity factor of 20% reflects intermittent or peaking operation. At 2750 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 (567 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 | North Valmy |
|---|---|
| Operator | Sierra Pacific Power Co |
| City | Valmy |
| County | Humboldt County |
| State | Nevada |
| ZIP | 89438 |
| Coordinates | 40.88132, -117.15161 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Conventional Steam Coal | Subbituminous Coal | 290 MW | Operating | 1985 |
| 1 | Conventional Steam Coal | Subbituminous Coal | 277 MW | Operating | 1981 |
| Owner | Location | Share |
|---|---|---|
| Idaho Power Co | Boise, ID | 5000.0% |
| Sierra Pacific Power Co | Reno, NV | 5000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 1.3M metric tons |
|---|---|
| SO₂ | 2.7k metric tons |
| NOₓ | 1.7k metric tons |
| CO₂ Rate | 2750 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 | Nevada Power Company |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.