Carthage Energy LLC
Jefferson County, New York · EIA plant ID 10620 · Operator: Carthage Energy LLC
Nameplate63MWSummer 61 MW
Generators2in service
Net generation7GWh12 mo to Dec 2025
Capacity factor1%gas/coal/oil units, summer MW
Heat rate9,768Btu/kWhfossil units, electric fuel, HHV
First online1991Runs 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 | 73.9 | — | — |
| 2002 | 79.2 | — | — |
| 2003 | 31.7 | 5.8% | 9,786 |
| 2004 | 5.7 | 1.0% | 9,451 |
| 2005 | 12.5 | 2.3% | 9,617 |
| 2006 | 11.8 | 2.1% | 9,457 |
| 2007 | 25.1 | 4.6% | 9,469 |
| 2008 | 4.8 | 1.0% | 9,761 |
| 2009 | 4.8 | 0.9% | 9,473 |
| 2010 | 12.4 | 2.4% | 9,753 |
| 2011 | 6.8 | 1.3% | 9,453 |
| 2012 | 24.4 | 4.7% | 9,460 |
| 2013 | 3.1 | 0.6% | 9,825 |
| 2014 | 11.4 | 2.2% | 9,974 |
| 2015 | 10.1 | 1.9% | 9,927 |
| 2016 | 10.4 | 2.0% | 9,832 |
| 2017 | 4.9 | 0.9% | 9,989 |
| 2018 | 19.9 | 3.9% | 9,757 |
| 2019 | 3.2 | 0.6% | 10,021 |
| 2020 | 4.6 | 0.9% | 10,021 |
| 2021 | 4.9 | 0.9% | 9,793 |
| 2022 | 2.8 | 0.5% | 10,000 |
| 2023 | 2.3 | 0.4% | 10,306 |
| 2024 | 3.3 | 0.6% | 9,835 |
| 2025 | 6.7 | 1.2% | 9,768 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusListed in EIA-860, no liquid burn in 36 months
Liquid fuel burned · 36 mo0 MMBtu
Last month with liquid burn—
Switch while operatingYes
Net summer MW on gas40
Net summer MW on oil40
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combined Cycle | CT | 40.9 | 40.1 | Nov 1991 | Operating | — | coming soon |
| GEN2 | Natural Gas Fired Combined Cycle | CA | 22 | 21 | Nov 1991 | Operating | — | coming soon |
Owner / operator
Operator: Carthage Energy LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Carthage Energy LLC | 100.0% | 63 MW |
Nearby plants
Within 80 km.
| West End Dam Hydroelectric Project | 4 MW | 0.2 km |
| Longfalls Facility | 3 MW | 0.4 km |
| Tannery Island Power | 2 MW | 0.9 km |
| Carthage B | 3 MW | 3.2 km |
| NY 26 Carthage CSG | 5 MW | 3.2 km |
| Carthage A | 5 MW | 3.6 km |