- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Middle Fork: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Middle Fork
Power plant · Hydro
Key facts
Power plant · Hydroran 40% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1966
- Net generation, 2025
- 423,606 MWh
- Grid
- 230 kV to Pacific Gas & Electric Co (CISO)
- Location
- Placer County, California
- Operated by
- Placer County Water Agency - (CA)SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 423,606
MWh - Fuel burned, 2025
- 1,445,344
MMBtu - Capacity factor, 2025
- 39.5
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2026 (8 of 12 months) | 350,263 | 1,195,098 | — | — |
| 2025 | 423,606 | 1,445,344 | 39.5% | — |
| 2024 | 434,565 | 1,482,734 | 40.4% | — |
| 2023 | 563,741 | 1,923,484 | 52.6% | — |
| 2022 | 9,531 | 32,711 | 0.9% | — |
| 2021 | 160,093 | 1,415,861 | 14.9% | — |
| 2020 | 265,910 | 2,331,233 | 24.7% | — |
| 2019 | 788,857 | 7,024,770 | 73.6% | — |
| 2018 | 451,504 | 4,110,492 | 42.1% | — |
| 2017 | 860,201 | 7,925,033 | 80.2% | — |
| 2016 | 531,978 | 4,911,221 | 49.5% | — |
| 2015 | 159,653 | 1,487,805 | 14.9% | — |
| 2014 | 270,448 | 2,575,907 | 25.2% | — |
| 2013 | 327,117 | 3,121,022 | 30.5% | — |
| 2012 | 446,134 | 4,245,410 | 41.5% | — |
| 2011 | 780,761 | 7,585,874 | 72.8% | — |
| 2010 | 545,513 | 5,322,023 | 50.9% | — |
| 2009 | 488,099 | 4,763,847 | 45.5% | — |
| 2008 | 303,005 | 2,985,809 | 28.2% | — |
| 2007 | 255,360 | 2,523,979 | 23.8% | — |
| 2006 | 837,066 | 8,302,858 | 78.1% | — |
| 2005 | 555,549 | 5,554,934 | 51.8% | — |
| 2004 | 506,688 | 5,078,027 | 47.1% | — |
| 2003 | 532,171 | 5,449,963 | 49.6% | — |
| 2002 | 305,784 | 3,110,741 | 28.5% | — |
| 2001 | 300,980 | 3,110,026 | 28.1% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.
Sources
3 sourcesSources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses)Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)