Shoreham
Suffolk County, New York · EIA plant ID 2518 · Operator: National Grid Generation LLC
Nameplate72MWSummer 66 MW
Generators2in service
Net generation1GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate17,523Btu/kWhfossil units, electric fuel, HHV
First online1966Runs as rarely runs
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 10.1 | 1.8% | 14,182 |
| 2002 | 12.1 | 2.1% | 15,444 |
| 2003 | 9.7 | 1.7% | 14,092 |
| 2004 | 1.7 | 0.3% | 16,313 |
| 2005 | 4.2 | 0.8% | 16,056 |
| 2006 | 3.9 | 0.7% | 15,963 |
| 2007 | 2.5 | 0.4% | 15,561 |
| 2008 | 1.2 | 0.2% | 17,427 |
| 2009 | 0.8 | 0.1% | 23,107 |
| 2010 | 2.7 | 0.5% | 17,372 |
| 2011 | 0.8 | 0.1% | 25,298 |
| 2012 | 0.6 | 0.1% | 26,054 |
| 2013 | 3.1 | 0.5% | 16,615 |
| 2014 | 0.6 | 0.1% | 25,444 |
| 2015 | 2 | 0.4% | 16,931 |
| 2016 | 5.3 | 0.9% | 14,783 |
| 2017 | 0.7 | 0.1% | 20,547 |
| 2018 | 2.4 | 0.4% | 14,986 |
| 2019 | 0.9 | 0.2% | 18,691 |
| 2020 | 1.3 | 0.2% | 19,038 |
| 2021 | 4 | 0.7% | 15,554 |
| 2022 | 0.9 | 0.1% | 20,028 |
| 2023 | 0.8 | 0.1% | 22,269 |
| 2024 | 0.4 | 0.1% | — |
| 2025 | 1 | 0.2% | 17,523 |
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 |
|---|---|---|---|---|---|---|---|---|
| GT1 | Petroleum Liquids | GT | 52.9 | 49.8 | Jul 1971 | Operating | — | coming soon |
| GT2 | Petroleum Liquids | GT | 18.6 | 15.9 | Apr 1966 | Operating | — | coming soon |
Owner / operator
Operator: National Grid Generation LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| National Grid Generation LLC | 100.0% | 72 MW |
Nearby plants
Within 80 km.
| KCE NY 31, LLC | — | 0.4 km |
| Shoreham Energy LLC | 100 MW | 0.5 km |
| Wading River | 239 MW | 1.2 km |
| Shoreham Solar Commons | 25 MW | 3.6 km |
| Sutter Greenworks LLC | 5 MW | 8.7 km |
| Leavenworth Greenworks LLC | 10 MW | 9.4 km |