Olney Solar II CSG
Solar power plant in Richland County, Illinois. 2 MW of nameplate capacity across 1 generator, operated by Olney Solar II, LLC.
Also known as Olney Solar II (CSG) · EIA plant 64043
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- June 2021First generator online
- Operator
- Olney Solar II, LLCEIA operator ID 63683
- Grid
- MISOBalancing authority MISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Richland County, IL38.7216, −88.1268
- EIA plant ID
- 64043EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Olney Solar II CSG produces
Free · EIA-923Net generation, 2025
4.40 GWh
4,398 MWh, final
Capacity factor, 2025
25.1%
2024: 25.2%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2022 to 2025
4.4–4.5
GWh a year. Low 2025, 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 | Not reported | Not reported | 0 of 12 |
| 2021 | 1,641 | Not reported | 7 of 12 |
| 2022 | 4,459 | 25.5% | 12 of 12 |
| 2023 | 4,482 | 25.6% | 12 of 12 |
| 2024 | 4,420 | 25.2% | 12 of 12 |
| 2025 | 4,398 | 25.1% | 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 |
|---|---|---|---|
| 6778 | Solar Photovoltaic | 2.0 | June 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 Olney Solar II, 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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Questions about Olney Solar II CSG
How much power does Olney Solar II CSG produce?
Olney Solar II CSG reported 4,398 MWh (4.40 GWh) of net generation in 2025, a 25.1% capacity factor on 2 MW of nameplate capacity.
Where is Olney Solar II CSG?
Olney Solar II CSG is in Richland County, Illinois, at 38.7216, −88.1268. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Olney Solar II CSG?
EIA-860M for August 2026 lists Olney Solar II, LLC as the operator (EIA operator ID 63683). The operator is not always the owner.
When did Olney Solar II CSG start operating?
Its first generator began operating in June 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)
- Project names from the USGS U.S. Large-Scale Solar Photovoltaic Database
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page