John L. Featherstone Plant — Plant Summary
- EIA Plant ID
- 57475
- Capacity
- 55 MW
- Primary Fuel
- Geothermal
- Technology
- Geothermal
- Status
- Operating
- Location
- Imperial, CA
- Operating Since
- 2012
- Generators
- 1
- Operator
- Hudson Ranch Power I LLC
- Parent Company
- —
- Annual Generation
- 433,097 MWh
- Capacity Factor
- 89.9%
- Balancing Authority
- Imperial Irrigation District
- ISO/RTO
- —
- NERC Region
- WECC
John L. Featherstone Plant
OperatingGeothermal
Ranked #14 of 33 Geothermal plants in CA#21 of 70 nationally
55 MW Geothermal operating in Imperial, CA — Imperial Irrigation District
EIAGEMWD
55 MW
Nameplate Capacity
1
Generators
unit
Geothermal
Technology
2012
Operating Since
Location
Coordinates
33.2038, -115.5746
County
Imperial, CA
Nearby Plants
- CE LeathersGeothermal45.5 MW · 3.0 km
- Elmore CompanyGeothermal45.5 MW · 3.9 km
- Midway Solar Farm 1Solar50 MW · 4.8 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 | Hudson Ranch Power I LLC | Hudson Ranch Power I | — |
| Owner(s) | Hudson Ranch Power I LLC | EnergySource [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as EnergySource [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
The John L. Featherstone Plant is a 55 MW geothermal power plant located in Imperial County, California. It began operating in 2012 and is owned and operated by Hudson Ranch Power I LLC. The plant utilizes geothermal technology for electricity generation and consists of a single generator. It is within the Imperial Irrigation District balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, the John L. Featherstone Plant generated 433,097 MWh of electricity, achieving a capacity factor of 89.9%. The plant is ranked as the 13th largest out of 33 geothermal plants in California, and 21st out of 70 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Imperial Irrigation District
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
39.8K MWh
Latest Month
433.1K MWh
Annual Generation
89.9%
Capacity Factor
Jan 2023 – Dec 2025
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 (10)Beta
Industry·technology
Can Geothermal Energy Solve the Lithium Shortfall?
Lithium might seem like an unlikely object for the limelight, but those steeped in the mineral commodities market are not surprised. The need for lithium...
Department of Energy (.gov)·4 weeks ago
Regulatory·permitting
CEC Extends Public Comment Period Amid Community Concerns
The public comment period for a trio of proposed Berkshire Hathaway Energy geothermal plants is extended into September.
CEC (regulator)Berkshire Hathaway Energy (developer)
Calexico Chronicle·1 years ago
Deals·m and a
NZ energy company Mercury sold interest in Hudson Ranch I geothermal plant in California
NZ energy company Mercury nets USD 27 million from sale of stake in Hudson Ranch I geothermal power plant in the Salton Sea, California to a...
Mercury (seller)
ThinkGeoEnergy·5 years ago
Industry·technology
How lithium could be Calif.’s next ‘gold rush’
Energy companies operating near California's Salton Sea are making an expensive gamble on efforts to tap a vast reserve of US lithium deposits.
E&E News by POLITICO·6 years ago
Last updated 2026-03-14
View all 10 articles