Long Island Solar Farm LLC
Suffolk County, New York · EIA plant ID 57589 · Operator: Long Island Solar Farm LLC
Nameplate32MWSummer 32 MW
Generators1in service
Net generation38GWh12 mo to Aug 2026
Capacity factor14%solar units, summer MW
Heat rate—thermal plants only
First online2011
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2011 | 6.4 | 27.5% | — |
| 2012 | 52.7 | 19.1% | — |
| 2013 | 51.8 | 18.8% | — |
| 2014 | 50.8 | 18.4% | — |
| 2015 | 52.3 | 18.9% | — |
| 2016 | 53.7 | 19.4% | — |
| 2017 | 47.3 | 17.2% | — |
| 2018 | 48.8 | 17.7% | — |
| 2019 | 50.6 | 18.4% | — |
| 2020 | 48.5 | 17.5% | — |
| 2021 | 50.1 | 18.1% | — |
| 2022 | 50.2 | 18.2% | — |
| 2023 | 45.6 | 16.5% | — |
| 2024 | 47.9 | 17.3% | — |
| 2025 | 42.8 | 15.5% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 9WUBN | Solar Photovoltaic | PV | 31.5 | 31.5 | Dec 2011 | Operating | — | coming soon |
Owner / operator
Operator: Long Island Solar Farm LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Long Island Solar Farm LLC | 100.0% | 32 MW |
Nearby plants
Within 80 km.
| Calabro Airport North Solar Project | 1 MW | 4.9 km |
| Calabro Airport South Solar Project | 1 MW | 5.6 km |
| Manorville II | — | 6.3 km |
| Shoreham Solar Commons | 25 MW | 8.8 km |
| William Floyd School District | 4 MW | 9.4 km |
| Brookhaven Landfill Solar Farm 1 | 5 MW | 9.4 km |