NGP Blue Mountain I LLC — Plant Summary
- EIA Plant ID
- 56982
- Capacity
- 63.9 MW
- Primary Fuel
- Geothermal
- Technology
- Geothermal
- Status
- Operating
- Location
- Humboldt, NV
- Operating Since
- 2009
- Generators
- 3
- Operator
- NGP Blue Mountain I LLC
- Parent Company
- —
- Annual Generation
- 182,814 MWh
- Capacity Factor
- 32.6%
- Balancing Authority
- Nevada Power Company
- ISO/RTO
- —
- NERC Region
- WECC
NGP Blue Mountain I LLC
OperatingGeothermal
Ranked #6 of 27 Geothermal plants in NV#18 of 70 nationally
63.9 MW Geothermal operating in Humboldt, NV — Nevada Power Company
EIAGEMWD
63.9 MW
Nameplate Capacity
3
Generators
units
Geothermal
Technology
2009
Operating Since
Location
Coordinates
30.4962, -103.4508
County
Humboldt, NV
Nearby Plants
- House MountainBESS73.2 MW · 0.1 km
- SolaireHolman Solar ProjectSolar50 MW · 5.3 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NGP Blue Mountain I LLC | AltaRock Energy [100%] | — |
| Owner(s) | NGP Blue Mountain I LLC | AltaRock Energy [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as AltaRock Energy [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Blue Mountain Faulkner 1 Geothermal Power Plant is a geothermal power plant located in Humboldt County, Nevada, United States. It was acquired by Ormat Technologies in 2025. It was operated by AltaRock Energy since 2015 and, previously, Nevada Geothermal Power Inc. Produced electricity is sold to NV Energy through a 21-mile (34 km) 120-kV transmission line to the transmission grid connection at Mill City, Nevada.
Read more on WikipediaNGP Blue Mountain I LLC is a 63.9 MW geothermal power plant located in Humboldt County, Nevada. The plant began operating in 2009 and is owned and operated by NGP Blue Mountain I LLC. It utilizes geothermal technology with three generators. The plant is connected to the grid and operates within the Nevada Power Company balancing authority, which falls under the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, NGP Blue Mountain I LLC generated 182,814 MWh of electricity, achieving a capacity factor of 32.6%. The plant is ranked as the 6th largest out of 27 power plants in Nevada and 18th largest out of 70 geothermal plants nationally. Its primary fuel source is geothermal energy.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Nevada Power Company
Grid Voltage
120 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
16.0K MWh
Latest Month
182.8K MWh
Annual Generation
32.6%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (1)Beta
Industry·corporate
The Blue Mountain Geothermal Power Plant, USA
The Blue Mountain Geothermal Power Plant is located in Humboldt County in North Nevada, US. Also known as Faulkner I, the geothermal plant was commissioned in...
Blue Mountain Geothermal Power Plant (operator)Humboldt County (other)
Power Technology·15 years ago
Last updated 2026-03-14
View all articles