North Valmy
Humboldt County, Nevada · EIA plant ID 8224 · Operator: Sierra Pacific Power Co
416 MW under construction (Natural Gas Fired Combustion Turbine), first expected May 2028 · EIA-860M
Nameplate567MWSummer 522 MW
Generators2in service · 416 MW building
Net generation1,669GWh12 mo to Aug 2026
Capacity factor37%gas/coal/oil units, summer MW
Heat rate11,244Btu/kWhfossil units, electric fuel, HHV
First online1981Runs as intermediate
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 3,699.4 | 80.9% | 10,198 |
| 2002 | 2,090.1 | 45.7% | 14,123 |
| 2003 | 3,325.4 | 72.7% | 10,522 |
| 2004 | 4,021.9 | 87.7% | 10,567 |
| 2005 | 3,952.1 | 86.4% | 10,530 |
| 2006 | 3,550.9 | 77.6% | 10,491 |
| 2007 | 3,391.5 | 74.2% | 10,579 |
| 2008 | 3,540.9 | 77.2% | 10,595 |
| 2009 | 3,370.3 | 73.7% | 10,591 |
| 2010 | 2,863.7 | 62.6% | 10,709 |
| 2011 | 1,861.5 | 40.7% | 11,269 |
| 2012 | 1,628.5 | 35.5% | 11,206 |
| 2013 | 2,530.2 | 55.3% | 10,840 |
| 2014 | 2,755.9 | 60.3% | 10,935 |
| 2015 | 1,425.3 | 31.2% | 11,386 |
| 2016 | 970.6 | 21.2% | 11,219 |
| 2017 | 652.8 | 14.3% | 12,233 |
| 2018 | 1,449.9 | 31.7% | 11,874 |
| 2019 | 1,698.7 | 37.1% | 11,680 |
| 2020 | 932.2 | 20.3% | 11,994 |
| 2021 | 1,568.1 | 34.3% | 11,748 |
| 2022 | 1,401.9 | 30.7% | 12,711 |
| 2023 | 981.8 | 21.5% | 14,171 |
| 2024 | 1,164.6 | 25.4% | 13,977 |
| 2025 | 1,297.7 | 28.4% | 12,582 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | ST | 277.2 | 254 | Dec 1981 | Operating | — | coming soon |
| 2 | Natural Gas Steam Turbine | ST | 289.8 | 268 | May 1985 | Operating | — | coming soon |
| CT3 | Natural Gas Fired Combustion Turbine | GT | 208 | 208 | planned May 2028 | Under construction | — | coming soon |
| CT4 | Natural Gas Fired Combustion Turbine | GT | 208 | 208 | planned May 2028 | Under construction | — | coming soon |
Owner / operator
Operator: Sierra Pacific Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Sierra Pacific Power Co | 50.0% | 284 MW |
| Idaho Power Co | 50.0% | 284 MW |
Nearby plants
Within 80 km.
| Battle Mountain Solar Project | 126 MW | 19.6 km |
| TS Power Plant | 442 MW | 54.5 km |
| Beowawe Power | 35 MW | 57.8 km |