Devon Station
New Haven County, Connecticut · EIA plant ID 544 · Operator: Devon Power LLC
Nameplate223MWSummer 132 MW
Generators5in service
Net generation-1GWh12 mo to Dec 2025
Capacity factor-0%!gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1985Runs 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 | 749.7 | — | — |
| 2002 | 489.3 | — | — |
| 2003 | 299.9 | 9.7% | 11,351 |
| 2004 | 52 | 1.7% | 13,545 |
| 2005 | 12.7 | 0.4% | 15,266 |
| 2006 | 43.8 | 1.4% | 11,822 |
| 2007 | 8.4 | 0.3% | 17,663 |
| 2008 | 4 | 0.3% | 13,947 |
| 2009 | 9.4 | 0.8% | 11,868 |
| 2010 | 12.4 | 1.1% | 11,843 |
| 2011 | 5.2 | 0.4% | 10,711 |
| 2012 | 3.1 | 0.3% | 10,792 |
| 2013 | 3.4 | 0.3% | 11,078 |
| 2014 | 6.2 | 0.5% | 10,707 |
| 2015 | 1.5 | 0.1% | 11,660 |
| 2016 | 3.8 | 0.3% | 10,817 |
| 2017 | 10.3 | 0.9% | 10,144 |
| 2018 | 11.8 | 1.0% | 11,254 |
| 2019 | -0.5 | -0.1% | — |
| 2020 | -0.1 | -0.0% | — |
| 2021 | -1.2 | -0.1% | — |
| 2022 | 0.6 | 0.1% | — |
| 2023 | 0.1 | 0.0% | — |
| 2024 | -0.6 | -0.1% | — |
| 2025 | -1.4 | -0.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 10 | Petroleum Liquids | GT | 18.6 | 14.4 | Jan 1985 | Operating | — | coming soon |
| 11 | Petroleum Liquids | GT | 51 | 29.2 | Jul 1996 | Operating | — | coming soon |
| 12 | Petroleum Liquids | GT | 51 | 29.2 | Jul 1996 | Operating | — | coming soon |
| 13 | Petroleum Liquids | GT | 51 | 29.9 | Jul 1996 | Operating | — | coming soon |
| 14 | Petroleum Liquids | GT | 51 | 29.7 | Jul 1996 | Operating | — | coming soon |
| 7 | Petroleum Liquids | ST | 103.5 | 107 | Jan 1957 | Retired Nov 2007 | — | coming soon |
| 8 | Petroleum Liquids | ST | 103.5 | 107 | Jan 1957 | Retired Nov 2007 | — | coming soon |
Owner / operator
Operator: Devon Power LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Devon Power LLC | 100.0% | 223 MW |
Nearby plants
Within 80 km.
| GenConn Devon LLC | 242 MW | 0.2 km |
| Milford Power Project | 578 MW | 1.8 km |
| Sikorsky Aircraft CHP | 10 MW | 4.6 km |
| Digital Fairfield | retired | 4.6 km |
| Emerald Gardens PKI, LLC | 2 MW | 7 km |
| Dynamic Energy CT STAG | 2 MW | 7.5 km |