High Desert Power Plant
Natural gas power plant in San Bernardino County, California. 960 MW of nameplate capacity across 4 generators, operated by MRP Generation Holdings, LLC.
Also known as EIA plant 55518
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Key facts
- Capacity
- 960 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- April 2003First generator online
- Operator
- MRP Generation Holdings, LLCEIA operator ID 60431
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- San Bernardino County, CA34.5953, −117.3647
- EIA plant ID
- 55518EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power High Desert produces
Free · EIA-923Net generation, 2025
3.33 TWh
3,333,774 MWh, final
Capacity factor, 2025
39.6%
2024: 54.5%
January to July 2026
1.18 TWh
Provisional
Range, 2015 to 2025
2.2–4.6
TWh a year. Low 2017, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | 2,318,686 | Not reported | 9 of 12 |
| 2004 | 3,785,083 | Not reported | 12 of 12 |
| 2005 | 3,656,116 | Not reported | 12 of 12 |
| 2006 | 3,926,682 | Not reported | 12 of 12 |
| 2007 | 4,518,068 | Not reported | 12 of 12 |
| 2008 | 4,704,901 | Not reported | 12 of 12 |
| 2009 | 4,265,280 | Not reported | 12 of 12 |
| 2010 | 3,283,954 | Not reported | 12 of 12 |
| 2011 | 1,938,136 | Not reported | 12 of 12 |
| 2012 | 5,040,042 | 67.3% | 12 of 12 |
| 2013 | 4,591,241 | Not reported | 12 of 12 |
| 2014 | 3,964,940 | 53.1% | 12 of 12 |
| 2015 | 3,542,240 | 47.5% | 12 of 12 |
| 2016 | 3,089,841 | 41.3% | 12 of 12 |
| 2017 | 2,168,001 | Not reported | 12 of 12 |
| 2018 | 3,019,302 | Not reported | 12 of 12 |
| 2019 | 3,337,426 | 44.7% | 12 of 12 |
| 2020 | 3,056,550 | 40.8% | 12 of 12 |
| 2021 | 3,803,880 | Not reported | 12 of 12 |
| 2022 | 4,052,355 | 54.3% | 12 of 12 |
| 2023 | 4,075,232 | Not reported | 12 of 12 |
| 2024 | 4,596,087 | 54.5% | 12 of 12 |
| 2025 | 3,333,774 | 39.6% | 12 of 12 |
| 2026 (provisional, partial year) | 1,175,898 | 24.1% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDCO₂, 2025
1.43M
US short tons. 2024: 1.99M
SO₂, 2025
7
US short tons
NOx, 2025
83
US short tons
CO₂ per MWh, calculated
0.43 t
About 858 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (CTG1, CTG2, CTG3), matched to EIA plant 55518 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
979
million gallons
Consumption, 2024
978
million gallons
Source
Municipal
Surface, Fresh. Induced-draft tower
Watershed stress
Low · 0.368
USGS SUI, HUC12 Burkhardt Lake-Mojave River
12 of 12 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | 209.0 | April 2003 |
| CTG2 | Natural Gas Fired Combined Cycle | 209.0 | April 2003 |
| CTG3 | Natural Gas Fired Combined Cycle | 209.0 | April 2003 |
| STG1 | Natural Gas Fired Combined Cycle | 333.0 | April 2003 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists MRP Generation Holdings, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about High Desert
How much power does High Desert Power Plant produce?
High Desert Power Plant reported 3,333,774 MWh (3.33 TWh) of net generation in 2025, a 39.6% capacity factor on 960 MW of nameplate capacity. From January to July 2026 it reported 1.18 TWh, which is provisional.
Where is High Desert Power Plant?
High Desert Power Plant is in San Bernardino County, California, at 34.5953, −117.3647. It is in the California Independent System Operator balancing area (CISO).
Who operates High Desert Power Plant?
EIA-860M for August 2026 lists MRP Generation Holdings, LLC as the operator (EIA operator ID 60431). The operator is not always the owner.
When did High Desert Power Plant start operating?
Its first generator began operating in April 2003, according to EIA-860M.
Does InfraMap have power prices for High Desert Power Plant?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to High Desert Power Plant, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page