Lyons Falls Hydroelectric
Lewis County, New York · EIA plant ID 56703 · Operator: Northbrook Lyons Falls LLC
Nameplate6MWSummer 6 MW
Generators5in service
Net generation27GWh12 mo to Dec 2025
Capacity factor56%hydro units, summer MW
Heat rate—thermal plants only
First online1923
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) |
|---|---|---|---|
| 2008 | 31.8 | 65.9% | — |
| 2009 | 30.5 | 63.2% | — |
| 2010 | 26.5 | 55.0% | — |
| 2011 | 29.2 | 60.5% | — |
| 2012 | 23.6 | 48.8% | — |
| 2013 | 26.1 | 54.1% | — |
| 2014 | 27.6 | 57.3% | — |
| 2015 | 27.4 | 56.9% | — |
| 2016 | 29.9 | 61.9% | — |
| 2017 | 30.5 | 63.2% | — |
| 2018 | 25 | 51.9% | — |
| 2019 | 29.2 | 60.6% | — |
| 2020 | 20.5 | 42.4% | — |
| 2021 | 24.3 | 50.3% | — |
| 2022 | 22 | 45.6% | — |
| 2023 | 28.3 | 58.7% | — |
| 2024 | 28.1 | 58.1% | — |
| 2025 | 27.1 | 56.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 1 | 1 | Dec 1923 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 1.2 | 1.2 | Apr 1963 | Operating | — | coming soon |
| 7 | Conventional Hydroelectric | HY | 1.2 | 1.2 | May 1966 | Operating | — | coming soon |
| 8 | Conventional Hydroelectric | HY | 1.3 | 1.2 | Mar 1974 | Operating | — | coming soon |
| 9 | Conventional Hydroelectric | HY | 0.9 | 0.9 | Apr 1971 | Operating | — | coming soon |
Owner / operator
Operator: Northbrook Lyons Falls LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Northbrook Lyons Falls LLC | 100.0% | 6 MW |
Nearby plants
Within 80 km.
| Moose River | 13 MW | 1.6 km |
| Gouldtown | 2 MW | 1.7 km |
| Kosterville | 1 MW | 2.1 km |
| Black River Hydro Associates | 6 MW | 3.3 km |
| Port Leyden Hydroelectric Project | 1 MW | 4.2 km |
| Lyonsdale Associates | 3 MW | 4.3 km |