Antelope Big Sky Ranch
Solar power plant in Los Angeles County, California. 20 MW of nameplate capacity across 1 generator, operated by AES Distributed Energy.
Also known as EIA plant 60279
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 20 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- August 2016First generator online
- Operator
- AES Distributed EnergyEIA operator ID 61012
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Los Angeles County, CA34.6948, −118.2877
- EIA plant ID
- 60279EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Antelope Big Sky Ranch produces
Free · EIA-923Net generation, 2025
49.9 GWh
49,935 MWh, final
Capacity factor, 2025
28.5%
2024: 30.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2017 to 2025
45.8–57.3
GWh a year. Low 2023, high 2018
| 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 | 17,070 | Not reported | 5 of 12 |
| 2017 | 56,416 | 32.2% | 12 of 12 |
| 2018 | 57,292 | 32.7% | 12 of 12 |
| 2019 | 55,178 | 31.5% | 12 of 12 |
| 2020 | 52,104 | 29.7% | 12 of 12 |
| 2021 | 51,042 | 29.1% | 12 of 12 |
| 2022 | 52,041 | 29.7% | 12 of 12 |
| 2023 | 45,762 | 26.1% | 12 of 12 |
| 2024 | 53,971 | 30.7% | 12 of 12 |
| 2025 | 49,935 | 28.5% | 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 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 |
|---|---|---|---|
| ABSR | Solar Photovoltaic | 20.0 | August 2016 |
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 AES Distributed Energy 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 Antelope Big Sky Ranch
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Questions about Antelope Big Sky Ranch
How much power does Antelope Big Sky Ranch produce?
Antelope Big Sky Ranch reported 49,935 MWh (49.9 GWh) of net generation in 2025, a 28.5% capacity factor on 20 MW of nameplate capacity.
Where is Antelope Big Sky Ranch?
Antelope Big Sky Ranch is in Los Angeles County, California, at 34.6948, −118.2877. It is in the California Independent System Operator balancing area (CISO).
Who operates Antelope Big Sky Ranch?
EIA-860M for August 2026 lists AES Distributed Energy as the operator (EIA operator ID 61012). The operator is not always the owner.
When did Antelope Big Sky Ranch start operating?
Its first generator began operating in August 2016, according to EIA-860M.
Does InfraMap have power prices for Antelope Big Sky Ranch?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Antelope Big Sky Ranch, 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