Stony Gorge
Hydro power plant in Glenn County, California. 5 MW of nameplate capacity across 2 generators, operated by City of Santa Clara - (CA).
Also known as Stony Gorge Dam Power Station · EIA plant 7151
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 5 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- April 1986First generator online
- Operator
- City of Santa Clara - (CA)EIA operator ID 16655
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Glenn County, CA39.5869, −122.5332
- EIA plant ID
- 7151EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Stony Gorge produces
Free · EIA-923Net generation, 2025
8.86 GWh
8,861 MWh, final
Capacity factor, 2025
20.2%
2024: 35.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.9–15.6
GWh a year. Low 2021, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 10,240 | Not reported | 12 of 12 |
| 2001 | 10,072 | Not reported | 12 of 12 |
| 2002 | 18,414 | Not reported | 12 of 12 |
| 2003 | 13,955 | Not reported | 12 of 12 |
| 2004 | 12,485 | Not reported | 12 of 12 |
| 2005 | 18,634 | Not reported | 12 of 12 |
| 2006 | 18,028 | Not reported | 12 of 12 |
| 2007 | 7,228 | Not reported | 12 of 12 |
| 2008 | 10,097 | Not reported | 12 of 12 |
| 2009 | 5,600 | Not reported | 12 of 12 |
| 2010 | 14,729 | 33.6% | 12 of 12 |
| 2011 | 14,155 | 32.3% | 12 of 12 |
| 2012 | 8,651 | 19.7% | 12 of 12 |
| 2013 | 7,765 | 17.7% | 12 of 12 |
| 2014 | 5,284 | 12.1% | 12 of 12 |
| 2015 | 5,990 | 13.7% | 12 of 12 |
| 2016 | 8,729 | 19.9% | 12 of 12 |
| 2017 | 13,331 | 30.4% | 12 of 12 |
| 2018 | 4,343 | 9.9% | 12 of 12 |
| 2019 | 14,337 | 32.7% | 12 of 12 |
| 2020 | 5,663 | 12.9% | 12 of 12 |
| 2021 | 1,902 | 4.3% | 12 of 12 |
| 2022 | 4,514 | 10.3% | 12 of 12 |
| 2023 | 13,472 | 30.8% | 12 of 12 |
| 2024 | 15,640 | 35.6% | 12 of 12 |
| 2025 | 8,861 | 20.2% | 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 | 2.5 | April 1986 |
| 2 | Conventional Hydroelectric | 2.5 | April 1986 |
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 City of Santa Clara - (CA) 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 Stony Gorge
More plants operated by City of Santa Clara - (CA)
Questions about Stony Gorge
How much power does Stony Gorge produce?
Stony Gorge reported 8,861 MWh (8.86 GWh) of net generation in 2025, a 20.2% capacity factor on 5 MW of nameplate capacity.
Where is Stony Gorge?
Stony Gorge is in Glenn County, California, at 39.5869, −122.5332. It is in the California Independent System Operator balancing area (CISO).
Who operates Stony Gorge?
EIA-860M for August 2026 lists City of Santa Clara - (CA) as the operator (EIA operator ID 16655). The operator is not always the owner.
When did Stony Gorge start operating?
Its first generator began operating in April 1986, according to EIA-860M.
Does InfraMap have power prices for Stony Gorge?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Stony Gorge, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page