Pit 3
Hydro power plant in Shasta County, California. 80.1 MW of nameplate capacity across 3 generators, operated by Pacific Gas & Electric Co..
Also known as Pit Three Powerhouse · EIA plant 266
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 80.1 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- July 1925First generator online
- Operator
- Pacific Gas & Electric Co.EIA operator ID 14328
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Shasta County, CA40.9974, −121.7481
- EIA plant ID
- 266EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Pit 3 produces
Free · EIA-923Net generation, 2025
375 GWh
374,621 MWh, final
Capacity factor, 2025
53.4%
2024: 47.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
112.1–374.6
GWh a year. Low 2022, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 460,181 | Not reported | 12 of 12 |
| 2001 | 373,407 | Not reported | 12 of 12 |
| 2002 | 379,439 | Not reported | 12 of 12 |
| 2003 | 405,336 | Not reported | 12 of 12 |
| 2004 | 391,971 | Not reported | 12 of 12 |
| 2005 | 406,085 | Not reported | 12 of 12 |
| 2006 | 416,462 | Not reported | 12 of 12 |
| 2007 | 318,508 | Not reported | 12 of 12 |
| 2008 | 316,156 | Not reported | 12 of 12 |
| 2009 | 290,102 | Not reported | 12 of 12 |
| 2010 | 283,586 | 40.4% | 12 of 12 |
| 2011 | 333,067 | 47.5% | 12 of 12 |
| 2012 | 254,464 | 36.2% | 12 of 12 |
| 2013 | 258,625 | 36.9% | 12 of 12 |
| 2014 | 214,655 | 30.6% | 12 of 12 |
| 2015 | 237,705 | 33.9% | 12 of 12 |
| 2016 | 299,634 | 42.6% | 12 of 12 |
| 2017 | 241,413 | 34.4% | 12 of 12 |
| 2018 | 257,821 | 36.7% | 12 of 12 |
| 2019 | 362,321 | 51.6% | 12 of 12 |
| 2020 | 260,845 | 37.1% | 12 of 12 |
| 2021 | 188,394 | 26.8% | 12 of 12 |
| 2022 | 112,121 | 16.0% | 12 of 12 |
| 2023 | 345,448 | 49.2% | 12 of 12 |
| 2024 | 332,765 | 47.3% | 12 of 12 |
| 2025 | 374,621 | 53.4% | 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 |
|---|---|---|---|
| H1 | Conventional Hydroelectric | 26.7 | July 1925 |
| H2 | Conventional Hydroelectric | 26.7 | July 1925 |
| H3 | Conventional Hydroelectric | 26.7 | July 1925 |
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.
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Power plants near Pit 3
More plants operated by Pacific Gas & Electric Co.
Questions about Pit 3
How much power does Pit 3 produce?
Pit 3 reported 374,621 MWh (375 GWh) of net generation in 2025, a 53.4% capacity factor on 80.1 MW of nameplate capacity.
Where is Pit 3?
Pit 3 is in Shasta County, California, at 40.9974, −121.7481. It is in the California Independent System Operator balancing area (CISO).
Who operates Pit 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 Pit 3 start operating?
Its first generator began operating in July 1925, according to EIA-860M.
Does InfraMap have power prices for Pit 3?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Pit 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page