W Plant
Natural gas power plant in San Diego County, California. 4.6 MW of nameplate capacity across 1 generator, operated by Qualcomm Incorporated.
Also known as EIA plant 59458
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Key facts
- Capacity
- 4.6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 2005First generator online
- Operator
- Qualcomm IncorporatedEIA operator ID 59222
- Grid
- CAISOBalancing authority CISO
- Price nodes
- None linkedNo verified ISO node
- Location
- San Diego County, CA32.9033, −117.1956
- EIA plant ID
- 59458EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power W Plant produces
Free · EIA-923Net generation, 2025
26.8 GWh
26,819 MWh, final
Capacity factor, 2025
66.6%
2024: 74.5%
January to July 2026
4.71 GWh
Provisional
Range, 2015 to 2025
26.8–36.0
GWh a year. Low 2025, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | 30,865 | 76.6% | 12 of 12 |
| 2015 | 36,017 | 89.4% | 12 of 12 |
| 2016 | 35,344 | 87.5% | 12 of 12 |
| 2017 | 33,722 | 83.7% | 12 of 12 |
| 2018 | 34,706 | 86.1% | 12 of 12 |
| 2019 | 35,038 | 87.0% | 12 of 12 |
| 2020 | 34,485 | 85.3% | 12 of 12 |
| 2021 | 33,400 | 82.9% | 12 of 12 |
| 2022 | 30,768 | 76.4% | 12 of 12 |
| 2023 | 32,576 | 80.8% | 12 of 12 |
| 2024 | 30,096 | 74.5% | 12 of 12 |
| 2025 | 26,819 | 66.6% | 12 of 12 |
| 2026 (provisional, partial year) | 4,711 | 20.1% | 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
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.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| W-TG1 | Natural Gas Fired Combustion Turbine | 4.6 | July 2005 |
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 Qualcomm Incorporated as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about W Plant
How much power does W Plant produce?
W Plant reported 26,819 MWh (26.8 GWh) of net generation in 2025, a 66.6% capacity factor on 4.6 MW of nameplate capacity. From January to July 2026 it reported 4.71 GWh, which is provisional.
Where is W Plant?
W Plant is in San Diego County, California, at 32.9033, −117.1956. It is in the California Independent System Operator balancing area (CISO).
Who operates W Plant?
EIA-860M for August 2026 lists Qualcomm Incorporated as the operator (EIA operator ID 59222). The operator is not always the owner.
When did W Plant start operating?
Its first generator began operating in July 2005, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page