HydroOperatingWALC

Parker Dam

Hydro power plant in San Bernardino County, California. 120 MW of nameplate capacity across 4 generators, operated by U S Bureau of Reclamation.

Also known as EIA plant 447

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Parker Dam500 m
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No other mapped plant within 60 km.

Key facts

Capacity
120 MWNameplate
Generators
4 operatingEIA-860M, August 2026
Operating since
December 1942First generator online
Operator
U S Bureau of ReclamationEIA operator ID 2518
Grid
WALCBalancing authority WALC
Price nodes
None linkedNo verified ISO node
Location
San Bernardino County, CA34.2953, −114.1402
EIA plant ID
447EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Parker Dam produces

Free · EIA-923

Net generation, 2025

361 GWh

361,077 MWh, final

Capacity factor, 2025

34.3%

2024: 37.6%

January to July 2026

247 GWh

Provisional

Range, 2015 to 2025

361.1–440.9

GWh a year. Low 2025, high 2016

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000486,679Not reported12 of 12
2001492,570Not reported12 of 12
2002465,808Not reported12 of 12
2003461,261Not reported12 of 12
2004439,465Not reported12 of 12
2005410,911Not reported12 of 12
2006448,047Not reported12 of 12
2007449,643Not reported12 of 12
2008436,921Not reported12 of 12
2009437,136Not reported12 of 12
2010439,31641.8%12 of 12
2011462,89544.0%12 of 12
2012462,44743.9%12 of 12
2013433,74541.3%12 of 12
2014448,58942.7%12 of 12
2015439,90041.8%12 of 12
2016440,87241.8%12 of 12
2017435,51641.4%12 of 12
2018436,36641.5%12 of 12
2019424,55240.4%12 of 12
2020430,00840.8%12 of 12
2021437,03141.6%12 of 12
2022425,46140.5%12 of 12
2023392,21937.3%12 of 12
2024396,14037.6%12 of 12
2025361,07734.3%12 of 12
2026 (provisional, partial year)247,33940.5%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

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Hydroelectric30.0December 1942
2Conventional Hydroelectric30.0January 1943
3Conventional Hydroelectric30.0December 1942
4Conventional Hydroelectric30.0May 1943

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists U S Bureau of Reclamation as the operator, which is not always the owner.

Modeled data

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Power plants near Parker Dam

More plants operated by U S Bureau of Reclamation

Questions about Parker Dam

How much power does Parker Dam produce?

Parker Dam reported 361,077 MWh (361 GWh) of net generation in 2025, a 34.3% capacity factor on 120 MW of nameplate capacity. From January to July 2026 it reported 247 GWh, which is provisional.

Where is Parker Dam?

Parker Dam is in San Bernardino County, California, at 34.2953, −114.1402. It is in the Western Area Power Administration - Desert Southwest Region balancing area (WALC).

Who operates Parker Dam?

EIA-860M for August 2026 lists U S Bureau of Reclamation as the operator (EIA operator ID 2518). The operator is not always the owner.

When did Parker Dam start operating?

Its first generator began operating in December 1942, according to EIA-860M.

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)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page