Stony Gorge
Glenn County, California · EIA plant ID 7151 · Operator: City of Santa Clara - (CA)
Nameplate5MWSummer 5 MW
Generators2in service
Net generation9GWh12 mo to Dec 2025
Capacity factor20%hydro units, summer MW
Heat rate—thermal plants only
First online1986
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 10.1 | 23.0% | — |
| 2002 | 18.4 | 42.0% | — |
| 2003 | 14 | 31.9% | — |
| 2004 | 12.5 | 28.4% | — |
| 2005 | 18.6 | 42.5% | — |
| 2006 | 18 | 41.2% | — |
| 2007 | 7.2 | 16.5% | — |
| 2008 | 10.1 | 23.0% | — |
| 2009 | 5.6 | 12.8% | — |
| 2010 | 14.7 | 33.6% | — |
| 2011 | 14.2 | 32.3% | — |
| 2012 | 8.7 | 19.7% | — |
| 2013 | 7.8 | 17.7% | — |
| 2014 | 5.3 | 12.1% | — |
| 2015 | 6 | 13.7% | — |
| 2016 | 8.7 | 19.9% | — |
| 2017 | 13.3 | 30.4% | — |
| 2018 | 4.3 | 9.9% | — |
| 2019 | 14.3 | 32.7% | — |
| 2020 | 5.7 | 12.9% | — |
| 2021 | 1.9 | 4.3% | — |
| 2022 | 4.5 | 10.3% | — |
| 2023 | 13.5 | 30.8% | — |
| 2024 | 15.6 | 35.6% | — |
| 2025 | 8.9 | 20.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 2.5 | 2.5 | Apr 1986 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 2.5 | 2.5 | Apr 1986 | Operating | — | coming soon |
Owner / operator
Operator: City of Santa Clara - (CA). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Santa Clara - (CA) | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Black Butte | 6 MW | 30.6 km |
| Enerparc CA2, LLC | 2 MW | 33.1 km |
| Colusa Generating Station | 712 MW | 33.4 km |
| Indian Valley Dam Hydro Project | 3 MW | 56.5 km |
| Potter Valley | 9 MW | 56.8 km |
| Abel Road Bioenergy | 4 MW | 60.6 km |