Effley
Lewis County, New York · EIA plant ID 2557 · Operator: Erie Boulevard Hydropower LP
Nameplate3MWSummer 3 MW
Generators4in service
Net generation14GWh12 mo to Dec 2025
Capacity factor54%hydro units, summer MW
Heat rate—thermal plants only
First online1902
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 | 21.9 | 87.5% | — |
| 2002 | 18.3 | 73.2% | — |
| 2003 | 15 | 60.1% | — |
| 2004 | 4 | 15.8% | — |
| 2005 | 12.7 | 50.0% | — |
| 2006 | 17.5 | 68.6% | — |
| 2007 | 14.6 | 59.6% | — |
| 2008 | 15.9 | 64.5% | — |
| 2009 | 17.7 | 72.0% | — |
| 2010 | 14.5 | 59.1% | — |
| 2011 | 17.1 | 69.5% | — |
| 2012 | 12.9 | 52.5% | — |
| 2013 | 15.7 | 61.9% | — |
| 2014 | 18.3 | 72.0% | — |
| 2015 | 13 | 51.0% | — |
| 2016 | 14 | 55.0% | — |
| 2017 | 19.2 | 75.6% | — |
| 2018 | 16.7 | 65.6% | — |
| 2019 | 19.7 | 77.5% | — |
| 2020 | 12.1 | 47.3% | — |
| 2021 | 13.7 | 54.1% | — |
| 2022 | 15.9 | 62.6% | — |
| 2023 | 16.6 | 65.3% | — |
| 2024 | 14.5 | 57.0% | — |
| 2025 | 13.8 | 54.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 0.4 | 0.4 | Jan 1902 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.4 | 0.4 | Jan 1907 | Operating (Out of service, expected back within the year) | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 0.6 | 0.4 | Jan 1910 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 1.6 | 1.7 | Jan 1923 | 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.
| Elmer | 2 MW | 1 km |
| Soft Maple | 16 MW | 2.8 km |
| Taylorville | 4 MW | 3.6 km |
| Belfort | 2 MW | 4.4 km |
| Eagle | 6 MW | 6.3 km |
| High Falls - Croghan NY | 6 MW | 7.6 km |