Johnsonville Dam
Rensselaer County, New York · EIA plant ID 2580 · Operator: Erie Boulevard Hydropower LP
Nameplate4MWSummer 3 MW
Generators2in service
Net generation4GWh12 mo to Dec 2025
Capacity factor19%hydro units, summer MW
Heat rate—thermal plants only
First online1909
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 | 9.5 | 54.0% | — |
| 2002 | 11.5 | 65.6% | — |
| 2003 | 10.2 | 58.1% | — |
| 2004 | 1.1 | 6.3% | — |
| 2005 | 9.2 | 42.0% | — |
| 2006 | 14.1 | 64.2% | — |
| 2007 | 10.3 | 47.0% | — |
| 2008 | 8.6 | 39.0% | — |
| 2009 | 0.3 | 1.5% | — |
| 2010 | 7.5 | 34.1% | — |
| 2011 | 4.5 | 20.5% | — |
| 2012 | 3.5 | 15.9% | — |
| 2013 | 6.6 | 30.0% | — |
| 2014 | 10.1 | 46.0% | — |
| 2015 | 4.9 | 22.4% | — |
| 2016 | 4.7 | 21.6% | — |
| 2017 | 6.7 | 30.5% | — |
| 2018 | 7.3 | 33.2% | — |
| 2019 | 6.1 | 27.8% | — |
| 2020 | 7.1 | 32.5% | — |
| 2021 | 11.8 | 53.7% | — |
| 2022 | 7 | 31.7% | — |
| 2023 | 13.6 | 62.3% | — |
| 2024 | 8 | 36.3% | — |
| 2025 | 4.2 | 19.0% | — |
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 | 2 | 1.1 | Jan 1909 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 2 | 1.4 | Jan 1909 | Operating (Out of service, expected back within the year) | — | 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% | 4 MW |
Nearby plants
Within 80 km.
| Valley Falls Hydroelectric Facility | 3 MW | 4.7 km |
| Czub CSG | 2 MW | 7.1 km |
| NY8 - Darby Solar | 20 MW | 7.6 km |
| Schaghticoke | 16 MW | 7.7 km |
| NY8 - Branscomb Solar | 20 MW | 7.9 km |
| Northline Solar CSG | 4 MW | 10.4 km |