- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Union Valley: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Union Valley
Power plant · Hydro
Key facts
Power plant · Hydroran 26% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1963
- Net generation, 2025
- 89,140 MWh
- Grid
- 230 kV to Sacramento Municipal Util Dist (BANC)
- Location
- El Dorado County, California
- Operated by
- Sacramento Municipal Util DistSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 89,140
MWh - Fuel burned, 2025
- 304,147
MMBtu - Capacity factor, 2025
- 26.4
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 89,140 | 304,147 | 26.4% | — |
| 2024 | 76,458 | 260,874 | 22.6% | — |
| 2023 | 168,188 | 573,858 | 49.7% | — |
| 2022 | 69,694 | 237,796 | 20.6% | — |
| 2021 | 32,679 | 289,015 | 9.7% | — |
| 2020 | 49,791 | 436,516 | 14.7% | — |
| 2019 | 127,658 | 1,136,796 | 37.8% | — |
| 2018 | 88,432 | 805,086 | 26.2% | — |
| 2017 | 186,277 | 1,716,169 | 55.1% | — |
| 2016 | 109,772 | 1,013,415 | 32.4% | — |
| 2015 | 38,925 | 362,742 | 11.5% | — |
| 2014 | 58,757 | 558,777 | 17.4% | — |
| 2013 | 80,505 | 768,099 | 23.8% | — |
| 2012 | 102,861 | 978,826 | 30.3% | — |
| 2011 | 207,529 | 2,016,353 | 61.4% | — |
| 2010 | 127,564 | 1,244,515 | 37.7% | — |
| 2009 | 98,336 | 959,761 | 29.1% | — |
| 2008 | 61,754 | 608,526 | 18.2% | — |
| 2007 | 76,311 | 754,259 | 22.6% | — |
| 2006 | 22,150 | 219,705 | 6.6% | — |
| 2005 | 155,533 | 1,555,174 | 46.0% | — |
| 2004 | 92,623 | 928,268 | 27.3% | — |
| 2003 | 114,682 | 1,174,458 | 33.9% | — |
| 2002 | 97,398 | 990,830 | 28.8% | — |
| 2001 | 18,992 | 196,244 | 5.6% | — |
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
- GEMGlobal 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.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)