Spaulding 3
Nevada County, California · EIA plant ID 283 · Operator: Pacific Gas & Electric Co
Nameplate7MWSummer 6 MW
Generators1in service
Net generation17GWh12 mo to Dec 2025
Capacity factor33%hydro units, summer MW
Heat rate—thermal plants only
First online1929
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 | 17.4 | 34.2% | — |
| 2002 | 21.3 | 41.9% | — |
| 2003 | 41.7 | 82.0% | — |
| 2004 | 29.2 | 57.4% | — |
| 2005 | 41.4 | 81.5% | — |
| 2006 | 39.2 | 77.2% | — |
| 2007 | 24.4 | 48.1% | — |
| 2008 | 26.1 | 51.2% | — |
| 2009 | 33 | 64.9% | — |
| 2010 | 32.4 | 63.7% | — |
| 2011 | 39.2 | 77.2% | — |
| 2012 | 27 | 53.0% | — |
| 2013 | 24.3 | 47.9% | — |
| 2014 | 3.4 | 6.8% | — |
| 2015 | 16.9 | 33.2% | — |
| 2016 | 17.4 | 34.1% | — |
| 2017 | 26.1 | 51.4% | — |
| 2018 | 0 | 0.1% | — |
| 2019 | 27.5 | 54.2% | — |
| 2020 | 21.3 | 41.8% | — |
| 2021 | 5.7 | 11.2% | — |
| 2022 | 14.7 | 29.0% | — |
| 2023 | 18.3 | 36.1% | — |
| 2024 | 15.6 | 30.6% | — |
| 2025 | 16.9 | 33.2% | — |
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 | 6.6 | 5.8 | Feb 1929 | Operating | — | coming soon |
Owner / operator
Operator: Pacific Gas & Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Pacific Gas & Electric Co | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Spaulding 1 | 7 MW | 1.7 km |
| Spaulding 2 | 4 MW | 1.7 km |
| Bowman | 4 MW | 12.4 km |
| Drum 2 | 53 MW | 14.4 km |
| Drum 1 | 49 MW | 14.5 km |
| Deer Creek PH | 6 MW | 18.5 km |