Rockfish Solar LLC
Solar power plant in Charles County, Maryland. 10.3 MW of nameplate capacity across 1 generator, operated by Rockfish Solar LLC.
Also known as Rockfish Solar, LLC · EIA plant 59811
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 10.3 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- August 2015First generator online
- Operator
- Rockfish Solar LLCEIA operator ID 59589
- Grid
- PJMBalancing authority PJM
- Price nodes
- None linkedNo verified ISO node
- Location
- Charles County, MD38.5915, −76.8749
- EIA plant ID
- 59811EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Rockfish Solar produces
Free · EIA-923Net generation, 2025
13.8 GWh
13,761 MWh, final
Capacity factor, 2025
15.3%
2024: 15.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
13.8–20.3
GWh a year. Low 2025, high 2019
| 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 | 7,007 | Not reported | 5 of 12 |
| 2016 | 20,268 | 22.4% | 12 of 12 |
| 2017 | 20,128 | 22.3% | 12 of 12 |
| 2018 | 18,815 | 20.9% | 12 of 12 |
| 2019 | 20,274 | 22.5% | 12 of 12 |
| 2020 | 18,374 | 20.3% | 12 of 12 |
| 2021 | 19,530 | 21.6% | 12 of 12 |
| 2022 | 18,121 | 20.1% | 12 of 12 |
| 2023 | 14,569 | 16.1% | 12 of 12 |
| 2024 | 14,170 | 15.7% | 12 of 12 |
| 2025 | 13,761 | 15.3% | 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 |
|---|---|---|---|
| GEN1 | Solar Photovoltaic | 10.3 | August 2015 |
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 Rockfish Solar 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 Rockfish Solar
How much power does Rockfish Solar LLC produce?
Rockfish Solar LLC reported 13,761 MWh (13.8 GWh) of net generation in 2025, a 15.3% capacity factor on 10.3 MW of nameplate capacity.
Where is Rockfish Solar LLC?
Rockfish Solar LLC is in Charles County, Maryland, at 38.5915, −76.8749. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Rockfish Solar LLC?
EIA-860M for August 2026 lists Rockfish Solar LLC as the operator (EIA operator ID 59589). The operator is not always the owner.
When did Rockfish Solar LLC start operating?
Its first generator began operating in August 2015, 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