Arthur Kill Generating Station
Richmond County, New York · EIA plant ID 2490 · Operator: NRG Arthur Kill Operations Inc
×18 MW natural gas retired since 2020 (latest May 2025)
Nameplate878MWSummer 877 MW
Generators2in service
Net generation1,458GWh12 mo to Aug 2026
Capacity factor19%gas/coal/oil units, summer MW
Heat rate10,941Btu/kWhfossil units, electric fuel, HHV
First online1959Runs as peaking
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), 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 | 2,466.8 | — | — |
| 2002 | 1,294.9 | — | — |
| 2003 | 673.5 | 9.1% | 11,779 |
| 2004 | 873.9 | 11.8% | 11,982 |
| 2005 | 1,354.6 | 18.4% | 11,486 |
| 2006 | 930.1 | 12.6% | 11,869 |
| 2007 | 1,389.4 | 18.9% | 11,492 |
| 2008 | 1,176 | 15.9% | 11,707 |
| 2009 | 892 | 12.1% | 11,656 |
| 2010 | 924.4 | 12.6% | 11,510 |
| 2011 | 1,591.6 | 21.6% | 11,243 |
| 2012 | 1,654.8 | 22.0% | 10,881 |
| 2013 | 1,356.3 | 18.0% | 11,015 |
| 2014 | 1,098 | 14.6% | 11,257 |
| 2015 | 1,051 | 14.0% | 11,250 |
| 2016 | 1,095.3 | 14.5% | 11,361 |
| 2017 | 827.1 | 11.0% | 11,282 |
| 2018 | 989.8 | 13.2% | 11,674 |
| 2019 | 903.3 | 11.8% | 11,700 |
| 2020 | 870.4 | 11.4% | 11,689 |
| 2021 | 875.5 | 11.5% | 11,196 |
| 2022 | 961.3 | 12.5% | 11,424 |
| 2023 | 1,044.3 | 13.3% | 11,252 |
| 2024 | 1,272 | 16.2% | 11,147 |
| 2025 | 2,056.5 | 26.8% | 10,573 |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Natural Gas Steam Turbine | ST | 342 | 358.2 | Sep 1959 | Operating | — | coming soon |
| 3 | Natural Gas Steam Turbine | ST | 535.5 | 518.4 | Jun 1969 | Operating | — | coming soon |
| GT1 | Natural Gas Fired Combustion Turbine | GT | 18 | — | Jan 1970 | Retired May 2025 | — | coming soon |
Owner / operator
Operator: NRG Arthur Kill Operations Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Arthur Kill Power LLC | 100.0% | 878 MW |
Nearby plants
Within 80 km.
| Elevate Arthur Kill | — | 0.2 km |
| IOS - ERW9 | 5 MW | 2.1 km |
| Amazon JFK8 Solar Project | 5 MW | 3.2 km |
| Port Reading 8 Solar | 1 MW | 3.3 km |
| Amazon | 4 MW | 3.3 km |
| Linden Solar Farm | 3 MW | 3.4 km |