Martin Limestone Solar Array
Solar power plant in Lancaster County, Pennsylvania. 1 MW of nameplate capacity across 1 generator, operated by Sunstream Energy LLC.
Also known as EIA plant 58443
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 2012First generator online
- Operator
- Sunstream Energy LLCEIA operator ID 58438
- Grid
- PJMBalancing authority PJM
- Price nodes
- None linkedNo verified ISO node
- Location
- Lancaster County, PA40.1060, −76.0593
- EIA plant ID
- 58443EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Martin Limestone Solar Array produces
Free · EIA-923Net generation, 2025
1.47 GWh
1,465 MWh, final
Capacity factor, 2025
16.7%
2024: 17.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.3–1.6
GWh a year. Low 2018, high 2016
| 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 | 1,553 | 17.7% | 12 of 12 |
| 2014 | 1,533 | 17.5% | 12 of 12 |
| 2015 | 1,451 | 16.6% | 12 of 12 |
| 2016 | 1,601 | 18.2% | 12 of 12 |
| 2017 | 1,526 | 17.4% | 12 of 12 |
| 2018 | 1,340 | 15.3% | 12 of 12 |
| 2019 | 1,436 | 16.4% | 12 of 12 |
| 2020 | 1,510 | 17.2% | 12 of 12 |
| 2021 | 1,536 | 17.5% | 12 of 12 |
| 2022 | 1,546 | 17.6% | 12 of 12 |
| 2023 | 1,581 | 18.0% | 12 of 12 |
| 2024 | 1,553 | 17.7% | 12 of 12 |
| 2025 | 1,465 | 16.7% | 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 | 1.0 | December 2012 |
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 Sunstream Energy 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 Martin Limestone Solar Array
How much power does Martin Limestone Solar Array produce?
Martin Limestone Solar Array reported 1,465 MWh (1.47 GWh) of net generation in 2025, a 16.7% capacity factor on 1 MW of nameplate capacity.
Where is Martin Limestone Solar Array?
Martin Limestone Solar Array is in Lancaster County, Pennsylvania, at 40.1060, −76.0593. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Martin Limestone Solar Array?
EIA-860M for August 2026 lists Sunstream Energy LLC as the operator (EIA operator ID 58438). The operator is not always the owner.
When did Martin Limestone Solar Array start operating?
Its first generator began operating in December 2012, 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