Big Creek 8
Hydro power plant in Fresno County, California. 30 MW of nameplate capacity across 1 generator, operated by Southern California Edison Co.
Also known as EIA plant 321
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Key facts
- Capacity
- 30 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- August 1921First generator online
- Operator
- Southern California Edison CoEIA operator ID 17609
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Fresno County, CA37.2096, −119.3289
- EIA plant ID
- 321EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Big Creek 8 produces
Free · EIA-923Net generation, 2025
152 GWh
151,824 MWh, final
Capacity factor, 2025
23.1%
2024: 26.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
42.2–369.5
GWh a year. Low 2015, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 305,686 | Not reported | 12 of 12 |
| 2001 | 173,005 | Not reported | 12 of 12 |
| 2002 | 241,460 | Not reported | 12 of 12 |
| 2003 | 279,640 | Not reported | 12 of 12 |
| 2004 | 237,681 | Not reported | 12 of 12 |
| 2005 | 372,308 | Not reported | 12 of 12 |
| 2006 | 347,055 | Not reported | 12 of 12 |
| 2007 | 169,978 | Not reported | 12 of 12 |
| 2008 | 128,314 | Not reported | 12 of 12 |
| 2009 | 237,164 | Not reported | 12 of 12 |
| 2010 | 260,726 | 39.7% | 12 of 12 |
| 2011 | 251,089 | 38.2% | 12 of 12 |
| 2012 | 154,780 | 23.5% | 12 of 12 |
| 2013 | 121,044 | 18.4% | 12 of 12 |
| 2014 | 105,736 | 16.1% | 12 of 12 |
| 2015 | 42,165 | 6.4% | 12 of 12 |
| 2016 | 212,772 | 32.3% | 12 of 12 |
| 2017 | 369,509 | 56.2% | 12 of 12 |
| 2018 | 245,586 | 37.4% | 12 of 12 |
| 2019 | 283,942 | 43.2% | 12 of 12 |
| 2020 | 94,636 | 14.4% | 12 of 12 |
| 2021 | 67,191 | 10.2% | 12 of 12 |
| 2022 | 100,817 | 15.3% | 12 of 12 |
| 2023 | 152,879 | 23.3% | 12 of 12 |
| 2024 | 173,805 | 26.4% | 12 of 12 |
| 2025 | 151,824 | 23.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo 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| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 30.0 | August 1921 |
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 Southern California Edison Co as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Big Creek 8
More plants operated by Southern California Edison Co
Questions about Big Creek 8
How much power does Big Creek 8 produce?
Big Creek 8 reported 151,824 MWh (152 GWh) of net generation in 2025, a 23.1% capacity factor on 30 MW of nameplate capacity.
Where is Big Creek 8?
Big Creek 8 is in Fresno County, California, at 37.2096, −119.3289. It is in the California Independent System Operator balancing area (CISO).
Who operates Big Creek 8?
EIA-860M for August 2026 lists Southern California Edison Co as the operator (EIA operator ID 17609). The operator is not always the owner.
When did Big Creek 8 start operating?
Its first generator began operating in August 1921, according to EIA-860M.
Does InfraMap have power prices for Big Creek 8?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Big Creek 8, 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)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page