Spaulding 3
Hydro power plant in Nevada County, California. 6.6 MW of nameplate capacity across 1 generator, operated by Pacific Gas & Electric Co..
Also known as EIA plant 283
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 6.6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- February 1929First generator online
- Operator
- Pacific Gas & Electric Co.EIA operator ID 14328
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Nevada County, CA39.3377, −120.6355
- EIA plant ID
- 283EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Spaulding 3 produces
Free · EIA-923Net generation, 2025
16.9 GWh
16,874 MWh, final
Capacity factor, 2025
29.2%
2024: 26.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.0–27.5
GWh a year. Low 2018, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 40,414 | Not reported | 12 of 12 |
| 2001 | 17,398 | Not reported | 12 of 12 |
| 2002 | 21,284 | Not reported | 12 of 12 |
| 2003 | 41,650 | Not reported | 12 of 12 |
| 2004 | 29,231 | Not reported | 12 of 12 |
| 2005 | 41,413 | Not reported | 12 of 12 |
| 2006 | 39,243 | Not reported | 12 of 12 |
| 2007 | 24,435 | Not reported | 12 of 12 |
| 2008 | 26,096 | Not reported | 12 of 12 |
| 2009 | 32,979 | Not reported | 12 of 12 |
| 2010 | 32,375 | 56.0% | 12 of 12 |
| 2011 | 39,236 | 67.9% | 12 of 12 |
| 2012 | 26,991 | 46.6% | 12 of 12 |
| 2013 | 24,335 | 42.1% | 12 of 12 |
| 2014 | 3,449 | 6.0% | 12 of 12 |
| 2015 | 16,871 | 29.2% | 12 of 12 |
| 2016 | 17,352 | 29.9% | 12 of 12 |
| 2017 | 26,122 | 45.2% | 12 of 12 |
| 2018 | 31 | 0.1% | 12 of 12 |
| 2019 | 27,527 | 47.6% | 12 of 12 |
| 2020 | 21,285 | 36.7% | 12 of 12 |
| 2021 | 5,665 | 9.8% | 12 of 12 |
| 2022 | 14,729 | 25.5% | 12 of 12 |
| 2023 | 18,333 | 31.7% | 12 of 12 |
| 2024 | 15,609 | 26.9% | 12 of 12 |
| 2025 | 16,874 | 29.2% | 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 | 6.6 | February 1929 |
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 Pacific Gas & Electric Co. as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
300 analyst questions a month, plus MCP
Query Spaulding 3 and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Spaulding 3
More plants operated by Pacific Gas & Electric Co.
Questions about Spaulding 3
How much power does Spaulding 3 produce?
Spaulding 3 reported 16,874 MWh (16.9 GWh) of net generation in 2025, a 29.2% capacity factor on 6.6 MW of nameplate capacity.
Where is Spaulding 3?
Spaulding 3 is in Nevada County, California, at 39.3377, −120.6355. It is in the California Independent System Operator balancing area (CISO).
Who operates Spaulding 3?
EIA-860M for August 2026 lists Pacific Gas & Electric Co. as the operator (EIA operator ID 14328). The operator is not always the owner.
When did Spaulding 3 start operating?
Its first generator began operating in February 1929, according to EIA-860M.
Does InfraMap have power prices for Spaulding 3?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Spaulding 3, 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