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567 MW Conventional Steam Coal (290 MW) + Natural Gas Steam Turbine (277 MW) operating in Humboldt, NV — Nevada Power Company
567 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Conventional Steam Coal + Natural Gas Steam Turbine
1981
Operating Since
Coordinates
40.8813, -117.1516
County
Humboldt, NV
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Sierra Pacific Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co, Sierra Pacific Power Co | IDACORP | — |
| Status | Operating | — | — |
North Valmy Generating Station is a 522-megawatt (700,000 hp) coal-fired power station located near Valmy, Nevada. The plant is jointly owned by NV Energy and Idaho Power.
Read more on WikipediaNorth Valmy is a 567 MW coal-fired power plant located in Humboldt County, Nevada. The plant, which began operating in 1981, consists of two generators utilizing conventional steam coal technology. It is owned by IDACORP and operated by Sierra Pacific Power Co. North Valmy is the largest coal plant in Nevada and ranks 53rd out of 75 coal plants nationally.
In the most recent year of data, North Valmy generated 1,297,695 MWh of electricity, achieving a capacity factor of 26.2%. The plant operates within the Nevada Power Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $1357.56 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
76.8K MWh
Latest Month
1.3M MWh
Annual Generation
26.2%
Capacity Factor
CO₂ Intensity
2750 lb/MWh
NOx
3 lb/MWh
SO₂
Steam turbine · Sierra Pacific Power Company d/b/a NV Energy · Data from 2015–2020
$1,374/kW
Installed Cost
$-17/kW
Annual CapEx
$40.5/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
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ask pi about North ValmyNevada Power Company (NEVP)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
5 lb/MWh
CH₄
0.342 lb/MWh
N₂O
0.050 lb/MWh
Capacity Factor
19.8%
Annual Net Gen
982 GWh
CO₂eq
2773 lb/MWh
Subregion
WECC Northwest