IOS II-LAX9
Solar power plant in San Bernardino County, California. 4 MW of nameplate capacity across 1 generator, operated by Madison Energy Holdings LLC.
Also known as EIA plant 63414
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 4 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- February 2020First generator online
- Operator
- Madison Energy Holdings LLCEIA operator ID 62915
- Grid
- CAISOBalancing authority CISO
- Price nodes
- None linkedNo verified ISO node
- Location
- San Bernardino County, CA34.0900, −117.4500
- EIA plant ID
- 63414EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power IOS II-LAX9 produces
Free · EIA-923Net generation, 2025
3.51 GWh
3,505 MWh, final
Capacity factor, 2025
10.0%
2024: 20.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2021 to 2025
0.7–7.5
GWh a year. Low 2022, high 2023
| 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 | 1,637 | Not reported | 11 of 12 |
| 2021 | 2,736 | 7.8% | 12 of 12 |
| 2022 | 671 | 1.9% | 12 of 12 |
| 2023 | 7,479 | 21.3% | 12 of 12 |
| 2024 | 7,202 | 20.5% | 12 of 12 |
| 2025 | 3,505 | 10.0% | 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 |
|---|---|---|---|
| IOSII | Solar Photovoltaic | 4.0 | February 2020 |
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 Madison Energy Holdings 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 IOS II-LAX9
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Questions about IOS II-LAX9
How much power does IOS II-LAX9 produce?
IOS II-LAX9 reported 3,505 MWh (3.51 GWh) of net generation in 2025, a 10.0% capacity factor on 4 MW of nameplate capacity.
Where is IOS II-LAX9?
IOS II-LAX9 is in San Bernardino County, California, at 34.0900, −117.4500. It is in the California Independent System Operator balancing area (CISO).
Who operates IOS II-LAX9?
EIA-860M for August 2026 lists Madison Energy Holdings LLC as the operator (EIA operator ID 62915). The operator is not always the owner.
When did IOS II-LAX9 start operating?
Its first generator began operating in February 2020, 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