High Desert Power Plant
San Bernardino County, California · EIA plant ID 55518 · Operator: MRP Generation Holdings, LLC
Nameplate960MWSummer 889 MW
Generators4in service
Net generation3,345GWh12 mo to Aug 2026
Capacity factor43%gas/coal/oil units, summer MW
Heat rate7,342Btu/kWhfossil units, electric fuel, HHV
First online2003Runs as baseload
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2003 | 2,318.7 | 45.0% | 7,317 |
| 2004 | 3,785.1 | 55.2% | 7,344 |
| 2005 | 3,656.1 | 53.5% | 7,357 |
| 2006 | 3,926.7 | 57.5% | 7,342 |
| 2007 | 4,518.1 | 66.1% | 7,088 |
| 2008 | 4,704.9 | 72.1% | 7,124 |
| 2009 | 4,265.3 | 65.6% | 7,005 |
| 2010 | 3,284 | 50.5% | 7,308 |
| 2011 | 1,938.1 | 29.8% | 7,197 |
| 2012 | 5,040 | 77.3% | 7,123 |
| 2013 | 4,591.2 | 70.6% | 7,156 |
| 2014 | 3,964.9 | 58.5% | 7,340 |
| 2015 | 3,542.2 | 52.2% | 7,467 |
| 2016 | 3,089.8 | 45.4% | 7,545 |
| 2017 | 2,168 | 32.0% | 7,582 |
| 2018 | 3,019.3 | 44.4% | 7,439 |
| 2019 | 3,337.4 | 49.1% | 7,562 |
| 2020 | 3,056.6 | 44.8% | 7,545 |
| 2021 | 3,803.9 | 54.0% | 7,507 |
| 2022 | 4,052.4 | 58.5% | 7,517 |
| 2023 | 4,075.2 | 54.1% | 7,220 |
| 2024 | 4,596.1 | 59.7% | 7,288 |
| 2025 | 3,333.8 | 42.8% | 7,230 |
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 209 | 189.8 | Apr 2003 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 209 | 187.7 | Apr 2003 | Operating | — | coming soon |
| CTG3 | Natural Gas Fired Combined Cycle | CT | 209 | 189.5 | Apr 2003 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 333 | 322.2 | Apr 2003 | Operating | — | coming soon |
Owner / operator
Operator: MRP Generation Holdings, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MRP Generation Holdings, LLC | 100.0% | 960 MW |
Nearby plants
Within 80 km.
| Expressway Solar C2 | 2 MW | 2.5 km |
| Expressway Solar A | 2 MW | 2.6 km |
| Expressway Solar B | 2 MW | 2.6 km |
| Adelanto Solar, LLC | 20 MW | 4.4 km |
| Adelanto Solar II, LLC | 7 MW | 4.4 km |
| Hudson - High Desert Hybrid | 150 MW | 4.6 km |