Chasm
Franklin County, New York · EIA plant ID 2550 · Operator: Erie Boulevard Hydropower LP
Nameplate3MWSummer 2 MW
Generators3in service
Net generation21GWh12 mo to Dec 2025
Capacity factor148%!hydro units, summer MW
Heat rate—thermal plants only
First online1913
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 | 20.6 | 82.4% | — |
| 2002 | 23.6 | 94.4% | — |
| 2003 | 22.3 | 84.8% | — |
| 2004 | 2.3 | 8.8% | — |
| 2005 | 22.6 | 74.2% | — |
| 2006 | 23.2 | 76.1% | — |
| 2007 | 21.8 | 82.9% | — |
| 2008 | 21.2 | 80.4% | — |
| 2009 | 21.3 | 81.2% | — |
| 2010 | 21.9 | 83.3% | — |
| 2011 | 19.3 | 73.3% | — |
| 2012 | 13.5 | 51.1% | — |
| 2013 | 9.2 | 65.6% | — |
| 2014 | 8 | 57.2% | — |
| 2015 | 13 | 92.9% | — |
| 2016 | 19 | 135.0% | — |
| 2017 | 21.1 | 150.4% | — |
| 2018 | 21.9 | 156.6% | — |
| 2019 | 23.8 | 169.4% | — |
| 2020 | 20.7 | 147.5% | — |
| 2021 | 17.3 | 123.6% | — |
| 2022 | 21.5 | 153.4% | — |
| 2023 | 26.9 | 191.8% | — |
| 2024 | 27.4 | 195.0% | — |
| 2025 | 20.7 | 147.8% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 1 | 0.5 | Jan 1913 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 1 | 0.5 | Jan 1913 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 1 | 0.6 | Jan 1926 | Operating | — | coming soon |
Owner / operator
Operator: Erie Boulevard Hydropower LP. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Erie Boulevard Hydropower LP | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Franklin Solar Site | 2 MW | 14.6 km |
| Malone Solar Site | 1 MW | 14.9 km |
| Macomb | 1 MW | 15.5 km |
| Willis Battery Storage | 20 MW | 16.9 km |
| Jericho Rise Wind Farm LLC | 78 MW | 17.5 km |
| OYA State Route 122 | 5 MW | 19.1 km |