Pit 4
Hydro power plant in Shasta County, California. 103.4 MW of nameplate capacity across 2 generators, operated by Pacific Gas & Electric Co..
Also known as Pit 4 Powerhouse · EIA plant 267
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Key facts
- Capacity
- 103.4 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- July 1955First 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, CA40.9864, −121.8494
- EIA plant ID
- 267EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Pit 4 produces
Free · EIA-923Net generation, 2025
397 GWh
396,575 MWh, final
Capacity factor, 2025
43.8%
2024: 37.3%
January to July 2026
196 GWh
Provisional
Range, 2015 to 2025
187.0–452.0
GWh a year. Low 2021, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 509,254 | Not reported | 12 of 12 |
| 2001 | 459,482 | Not reported | 12 of 12 |
| 2002 | 472,247 | Not reported | 12 of 12 |
| 2003 | 513,676 | Not reported | 12 of 12 |
| 2004 | 499,804 | Not reported | 12 of 12 |
| 2005 | 426,312 | Not reported | 12 of 12 |
| 2006 | 419,319 | Not reported | 12 of 12 |
| 2007 | 446,866 | Not reported | 12 of 12 |
| 2008 | 433,949 | Not reported | 12 of 12 |
| 2009 | 403,387 | Not reported | 12 of 12 |
| 2010 | 407,562 | 45.0% | 12 of 12 |
| 2011 | 464,077 | 51.2% | 12 of 12 |
| 2012 | 342,020 | 37.7% | 12 of 12 |
| 2013 | 348,817 | 38.5% | 12 of 12 |
| 2014 | 305,937 | 33.8% | 12 of 12 |
| 2015 | 229,977 | 25.4% | 12 of 12 |
| 2016 | 392,158 | 43.2% | 12 of 12 |
| 2017 | 374,569 | 41.4% | 12 of 12 |
| 2018 | 397,187 | 43.9% | 12 of 12 |
| 2019 | 452,030 | 49.9% | 12 of 12 |
| 2020 | 330,935 | 36.4% | 12 of 12 |
| 2021 | 186,986 | 20.6% | 12 of 12 |
| 2022 | 272,952 | 30.1% | 12 of 12 |
| 2023 | 404,188 | 44.6% | 12 of 12 |
| 2024 | 338,659 | 37.3% | 12 of 12 |
| 2025 | 396,575 | 43.8% | 12 of 12 |
| 2026 (provisional, partial year) | 196,281 | 37.3% | 7 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 | 51.7 | October 1955 |
| 2 | Conventional Hydroelectric | 51.7 | July 1955 |
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 4
More plants operated by Pacific Gas & Electric Co.
Questions about Pit 4
How much power does Pit 4 produce?
Pit 4 reported 396,575 MWh (397 GWh) of net generation in 2025, a 43.8% capacity factor on 103.4 MW of nameplate capacity. From January to July 2026 it reported 196 GWh, which is provisional.
Where is Pit 4?
Pit 4 is in Shasta County, California, at 40.9864, −121.8494. It is in the California Independent System Operator balancing area (CISO).
Who operates Pit 4?
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 4 start operating?
Its first generator began operating in July 1955, according to EIA-860M.
Does InfraMap have power prices for Pit 4?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Pit 4, 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