Gilead Foster City Solar Project
Solar and battery storage project in San Mateo County, California. 1.6 MW of nameplate capacity across 3 generators, operated by Gilead Sciences Inc. Foster City.
Also known as EIA plant 65409
This project groups Gilead Foster City Solar Project (EIA 65409). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.6 MWSolar 1.1 · Battery storage 0.5
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- April 2021First generator online
- Operator
- Gilead Sciences Inc. Foster CityEIA operator ID 64755
- Grid
- CAISOBalancing authority CISO
- Price nodes
- None linkedNo verified ISO node
- Location
- San Mateo County, CA37.5686, −122.2780
- EIA plant ID
- 65409EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Gilead Foster City Solar Project produces
Free · EIA-923Net generation, 2025
1.89 GWh
1,890 MWh, final
Capacity factor, 2025
20.0%
2024: 20.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2022 to 2025
1.5–1.9
GWh a year. Low 2023, high 2024
| 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 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | 1,407 | Not reported | 9 of 12 |
| 2022 | 1,859 | 19.3% | 12 of 12 |
| 2023 | 1,478 | 15.7% | 12 of 12 |
| 2024 | 1,942 | 20.5% | 12 of 12 |
| 2025 | 1,890 | 20.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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. 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 |
|---|---|---|---|
| GFCS1 | Solar Photovoltaic | 0.9 | April 2021 |
| GFCS2 | Solar Photovoltaic | 0.2 | April 2021 |
| GFCSB | Batteries | 0.5 | April 2021 |
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 Gilead Sciences Inc. Foster City as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Questions about Gilead Foster City Solar Project
How much power does Gilead Foster City Solar Project produce?
Gilead Foster City Solar Project reported 1,890 MWh (1.89 GWh) of net generation in 2025, a 20.0% capacity factor on 1.6 MW of nameplate capacity.
Where is Gilead Foster City Solar Project?
Gilead Foster City Solar Project is in San Mateo County, California, at 37.5686, −122.2780. It is in the California Independent System Operator balancing area (CISO).
Who operates Gilead Foster City Solar Project?
EIA-860M for August 2026 lists Gilead Sciences Inc. Foster City as the operator (EIA operator ID 64755). The operator is not always the owner.
Is Gilead Foster City Solar Project a solar or a battery storage plant?
Both. Solar capacity totals 1.1 MW and battery storage capacity totals 0.5 MW.
When did Gilead Foster City Solar Project start operating?
Its first generator began operating in April 2021, 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