John L. Featherstone Plant
Imperial County, California · EIA plant ID 57475 · Operator: Hudson Ranch Power I LLC
Nameplate55MWSummer 50 MW
Generators1in service
Net generation429GWh12 mo to Aug 2026
Capacity factor98%geothermal units, summer MW
Heat rate—thermal plants only
First online2012
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), geothermal 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2012 | 352.4 | 96.2% | — |
| 2013 | 386.4 | 88.4% | — |
| 2014 | 429.2 | 98.2% | — |
| 2015 | 435.3 | 99.6% | — |
| 2016 | 443.3 | 101.1% | — |
| 2017 | 424.3 | 97.1% | — |
| 2018 | 416 | 95.2% | — |
| 2019 | 440.1 | 100.7% | — |
| 2020 | 429.9 | 98.1% | — |
| 2021 | 375.7 | 86.0% | — |
| 2022 | 396.3 | 90.7% | — |
| 2023 | 381.2 | 87.2% | — |
| 2024 | 408 | 93.1% | — |
| 2025 | 433.1 | 99.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| HRP1 | Geothermal | ST | 55 | 49.9 | Mar 2012 | Operating | — | coming soon |
Owner / operator
Operator: Hudson Ranch Power I LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Hudson Ranch Power I LLC | 100.0% | 55 MW |
Nearby plants
Within 80 km.
| CE Leathers | 46 MW | 3.1 km |
| Midway Solar Farm 1 | 50 MW | 3.1 km |
| Elmore Company | 46 MW | 4.1 km |
| Calipatria Solar Farm | 20 MW | 5.8 km |
| Del Ranch Company | 46 MW | 6 km |
| Midway Solar Farm II | 30 MW | 6.1 km |