- Wind & solar
- Operating
- 10 · 100 · 1,000 MW
Map
- Wind & solar
- Operating
Giffen: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Giffen
Power plant · Solar
Key facts
Power plant · Solarran 13% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 2012
- Net generation, 2025
- 11,555 MWh
- Grid
- 12 kV to Pacific Gas & Electric Co (CISO)
- Location
- Fresno County, California
- Operated by
- Pacific Gas & Electric Co.SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 11,555
MWh - Fuel burned, 2025
- 39,424
MMBtu - Capacity factor, 2025
- 13.2
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 11,555 | 39,424 | 13.2% | — |
| 2024 | 13,554 | 46,247 | 15.4% | — |
| 2023 | 13,360 | 45,584 | 15.2% | — |
| 2022 | 17,191 | 58,656 | 19.6% | — |
| 2021 | 9,983 | 88,290 | 11.4% | — |
| 2020 | 19,036 | 166,889 | 21.7% | — |
| 2019 | 17,464 | 155,517 | 19.9% | — |
| 2018 | 18,948 | 172,502 | 21.6% | — |
| 2017 | 18,175 | 167,445 | 20.8% | — |
| 2016 | 20,678 | 190,898 | 23.5% | — |
| 2015 | 21,772 | 202,894 | 24.9% | — |
| 2014 | 21,518 | 204,636 | 24.6% | — |
| 2013 | 24,000 | 228,984 | 27.4% | — |
| 2012 (7 of 12 months) | 10,643 | 101,279 | — | — |
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)