RE Old River One, LLC
Solar power plant in Kern County, California. 20 MW of nameplate capacity across 1 generator, operated by Onward Energy.
Also known as EIA plant 58986
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 20 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 2014First generator online
- Operator
- Onward EnergyEIA operator ID 60453
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Kern County, CA35.2233, −119.0889
- EIA plant ID
- 58986EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power RE Old River One produces
Free · EIA-923Net generation, 2025
37.5 GWh
37,520 MWh, final
Capacity factor, 2025
21.4%
2024: 20.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
34.7–51.1
GWh a year. Low 2023, high 2017
| 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 | 900 | Not reported | 1 of 12 |
| 2015 | 50,834 | 29.0% | 12 of 12 |
| 2016 | 51,088 | 29.1% | 12 of 12 |
| 2017 | 51,117 | 29.2% | 12 of 12 |
| 2018 | 49,959 | 28.5% | 12 of 12 |
| 2019 | 49,619 | 28.3% | 12 of 12 |
| 2020 | 47,113 | 26.8% | 12 of 12 |
| 2021 | 45,024 | 25.7% | 12 of 12 |
| 2022 | 46,358 | 26.5% | 12 of 12 |
| 2023 | 34,694 | 19.8% | 12 of 12 |
| 2024 | 35,628 | 20.3% | 12 of 12 |
| 2025 | 37,520 | 21.4% | 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 |
|---|---|---|---|
| 1 | Solar Photovoltaic | 20.0 | December 2014 |
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 Onward 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 RE Old River One
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Questions about RE Old River One
How much power does RE Old River One, LLC produce?
RE Old River One, LLC reported 37,520 MWh (37.5 GWh) of net generation in 2025, a 21.4% capacity factor on 20 MW of nameplate capacity.
Where is RE Old River One, LLC?
RE Old River One, LLC is in Kern County, California, at 35.2233, −119.0889. It is in the California Independent System Operator balancing area (CISO).
Who operates RE Old River One, LLC?
EIA-860M for August 2026 lists Onward Energy as the operator (EIA operator ID 60453). The operator is not always the owner.
When did RE Old River One, LLC start operating?
Its first generator began operating in December 2014, according to EIA-860M.
Does InfraMap have power prices for RE Old River One, LLC?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to RE Old River One, LLC, 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