Desert Quartzite
Solar and battery storage project in Riverside County, California. 450 MW of nameplate capacity across 2 generators, operated by Desert Quartzite LLC.
Also known as EIA plant 59871
This project groups Desert Quartzite (EIA 59871). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 450 MWSolar 300.0 · Battery storage 150.0
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- December 2024First generator online
- Operator
- Desert Quartzite LLCEIA operator ID 59656
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Riverside County, CA33.5650, −114.7530
- EIA plant ID
- 59871EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Desert Quartzite produces
Free · EIA-923Net generation, 2025
823 GWh
822,859 MWh, final
Capacity factor, 2025
32.1%
2024: Not reported
January to July 2026
543 GWh
Provisional
| 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 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | 81,745 | Not reported | 1 of 12 |
| 2025 | 822,859 | 32.1% | 12 of 12 |
| 2026 (provisional, partial year) | 543,038 | 36.1% | 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 account · CAISOEmissions
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 |
|---|---|---|---|
| GEN01 | Solar Photovoltaic | 300.0 | December 2024 |
| GEN02 | Batteries | 150.0 | December 2024 |
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 Desert Quartzite LLC 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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Power plants near Desert Quartzite
Questions about Desert Quartzite
How much power does Desert Quartzite produce?
Desert Quartzite reported 822,859 MWh (823 GWh) of net generation in 2025, a 32.1% capacity factor on 450 MW of nameplate capacity. From January to July 2026 it reported 543 GWh, which is provisional.
Where is Desert Quartzite?
Desert Quartzite is in Riverside County, California, at 33.5650, −114.7530. It is in the California Independent System Operator balancing area (CISO).
Who operates Desert Quartzite?
EIA-860M for August 2026 lists Desert Quartzite LLC as the operator (EIA operator ID 59656). The operator is not always the owner.
Is Desert Quartzite a solar or a battery storage plant?
Both. Solar capacity totals 300 MW and battery storage capacity totals 150 MW.
When did Desert Quartzite start operating?
Its first generator began operating in December 2024, according to EIA-860M.
Does InfraMap have power prices for Desert Quartzite?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Desert Quartzite, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page