Long Island Solar Farm LLC
Solar power plant in Suffolk County, New York. 31.5 MW of nameplate capacity across 1 generator, operated by Long Island Solar Farm LLC.
Also known as Long Island Solar Farm, LLC · EIA plant 57589
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 31.5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 2011First generator online
- Operator
- Long Island Solar Farm LLCEIA operator ID 56924
- Grid
- NYISOBalancing authority NYIS
- Price nodes
- 1 NYISO nodeResource nodes with prices
- Location
- Suffolk County, NY40.8611, −72.8478
- EIA plant ID
- 57589EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Long Island Solar Farm produces
Free · EIA-923Net generation, 2025
42.8 GWh
42,764 MWh, final
Capacity factor, 2025
15.5%
2024: 17.3%
January to July 2026
20.4 GWh
Provisional. 6 of 7 months reported
Range, 2015 to 2025
42.8–53.7
GWh a year. Low 2025, 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 | 6,443 | Not reported | 2 of 12 |
| 2012 | 52,713 | 19.1% | 12 of 12 |
| 2013 | 51,817 | 18.8% | 12 of 12 |
| 2014 | 50,822 | 18.4% | 12 of 12 |
| 2015 | 52,287 | 18.9% | 12 of 12 |
| 2016 | 53,709 | 19.4% | 12 of 12 |
| 2017 | 47,311 | 17.1% | 12 of 12 |
| 2018 | 48,760 | 17.7% | 12 of 12 |
| 2019 | 50,626 | 18.3% | 12 of 12 |
| 2020 | 48,493 | 17.5% | 12 of 12 |
| 2021 | 50,059 | 18.1% | 12 of 12 |
| 2022 | 50,203 | 18.2% | 12 of 12 |
| 2023 | 45,636 | 16.5% | 12 of 12 |
| 2024 | 47,878 | 17.3% | 12 of 12 |
| 2025 | 42,764 | 15.5% | 12 of 12 |
| 2026 (provisional, partial year) | 20,371 | 14.8% | 6 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 · NYISOEmissions
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 |
|---|---|---|---|
| 9WUBN | Solar Photovoltaic | 31.5 | December 2011 |
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 Long Island Solar Farm 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 Long Island Solar Farm
How much power does Long Island Solar Farm LLC produce?
Long Island Solar Farm LLC reported 42,764 MWh (42.8 GWh) of net generation in 2025, a 15.5% capacity factor on 31.5 MW of nameplate capacity. From January to July 2026 it reported 20.4 GWh, which is provisional.
Where is Long Island Solar Farm LLC?
Long Island Solar Farm LLC is in Suffolk County, New York, at 40.8611, −72.8478. It is in the New York Independent System Operator balancing area (NYIS).
Who operates Long Island Solar Farm LLC?
EIA-860M for August 2026 lists Long Island Solar Farm LLC as the operator (EIA operator ID 56924). The operator is not always the owner.
When did Long Island Solar Farm LLC start operating?
Its first generator began operating in December 2011, according to EIA-860M.
Does InfraMap have power prices for Long Island Solar Farm LLC?
Yes. InfraMap has NYISO day-ahead and real-time prices at 1 price node linked to Long Island Solar Farm 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)
- NYISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- 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