Chasm Hydro Partnership
Franklin County, New York · EIA plant ID 50315 · Operator: Chasm Hydro Partnership
Nameplate2MWSummer 1 MW
Generators2in service
Net generation2GWh12 mo to Dec 2025
Capacity factor17%hydro units, summer MW
Heat rate—thermal plants only
First online1982
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), hydro 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) |
|---|---|---|---|
| 2001 | 0 | 0.1% | — |
| 2002 | 6.5 | 68.7% | — |
| 2003 | 6.5 | 68.7% | — |
| 2005 | 0 | 0.1% | — |
| 2006 | 5.3 | 56.5% | — |
| 2007 | 6.9 | 78.7% | — |
| 2008 | 6.7 | 76.5% | — |
| 2009 | 4.9 | 55.5% | — |
| 2010 | 6.5 | 74.2% | — |
| 2011 | 6.8 | 77.0% | — |
| 2012 | 6.5 | 74.0% | — |
| 2013 | 7 | 79.9% | — |
| 2014 | 5.2 | 59.2% | — |
| 2015 | 4.9 | 55.4% | — |
| 2016 | 3.9 | 43.8% | — |
| 2017 | 0.2 | 2.6% | — |
| 2018 | 0 | 0.0% | — |
| 2019 | 0 | 0.0% | — |
| 2020 | 0 | 0.0% | — |
| 2021 | 0 | 0.0% | — |
| 2022 | 0.9 | 9.8% | — |
| 2023 | 4.7 | 53.6% | — |
| 2024 | 4.4 | 50.6% | — |
| 2025 | 1.5 | 17.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1100 | Conventional Hydroelectric | HY | 1 | 0.5 | Mar 1982 | Operating | — | coming soon |
| 2600 | Conventional Hydroelectric | HY | 0.6 | 0.5 | Oct 1984 | Operating | — | coming soon |
Owner / operator
Operator: Chasm Hydro Partnership. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Chasm Hydro Partnership | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Brookside Solar | — | 1.4 km |
| AES Glengarry Farms Solar CSG | 5 MW | 3.2 km |
| Chateaugay High Falls Hydro | 2 MW | 3.2 km |
| Jericho Rise Wind Farm LLC | 78 MW | 4.8 km |
| Willis Battery Storage | 20 MW | 4.9 km |
| NSF Chateaugay Site 2 | 4 MW | 5.3 km |