North Valmy — Plant Summary
- EIA Plant ID
- 8224
- Capacity
- 567 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- Humboldt, NV
- Operating Since
- 1981
- Generators
- 2
- Operator
- Sierra Pacific Power Co
- Parent Company
- IDACORP
- Annual Generation
- 1,297,695 MWh
- Capacity Factor
- 26.2%
- Balancing Authority
- Nevada Power Company
- ISO/RTO
- —
- NERC Region
- WECC
North Valmy
OperatingSub. Coal
Ranked #1 of 2 Sub. Coal plants in NV#61 of 103 nationally
567 MW Sub. Coal operating in Humboldt, NV — Nevada Power Company
EIAWD
567 MW
Nameplate Capacity
2
Generators
units
Conventional Steam Coal
Technology
1981
Operating Since
Location
Coordinates
40.8813, -117.1516
County
Humboldt, NV
Nearby Plants
- Battle Mountain Solar ProjectBESS126 MW · 19.5 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Sierra Pacific Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co, Sierra Pacific Power Co | IDACORP | — |
| Status | Operating | — | — |
Ownership Chain
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Nevada Power Company
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
76.8K MWh
Latest Month
1.3M MWh
Annual Generation
26.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$1,374/kW
Installed Cost
$40.5/MWh
Operating Cost
Sierra Pacific Power Company d/b/a NV Energy
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Regulatory·permitting
Idaho Power Company; Notice of Intent To File License Application, Filing of Pre-Application Document, and Approving Use of the Traditional Licensing Process
Federal Register (FERC)·3 days ago
Industry·technology
Idaho Power eyes completion of North Valmy coal-to-gas conversion
Both generating units at the North Valmy power generating station near Battle Mountain, Nev., are expected to be natural-gas-fired and...
Idaho Power (operator)North Valmy (other)
Capital Press·4 weeks ago
Industry·corporate
After closing coal plants, Idaho Power is the rare utility cutting rates
The utility asked regulators to lower electricity rates in Oregon, even as its peers raise them — and Trump pushes coal as the solution.
Idaho Power (operator)
Latitude Media·5 months ago
Regulatory·permitting
BLM approves Pinyon Pipeline near Valmy in Humboldt County, Nevada
The Bureau of Land Management has approved a new natural gas pipeline in Humboldt County. An environmental analysis found no significant impact.
BLM (regulator)Pinyon Pipeline (other)
Bureau of Land Management (.gov)·11 months ago
Last updated 2026-03-25
View all 10 articles