Hannawa
St. Lawrence County, New York · EIA plant ID 2571 · Operator: Erie Boulevard Hydropower LP
Nameplate7MWSummer 7 MW
Generators2in service
Net generation44GWh12 mo to Dec 2025
Capacity factor70%hydro units, summer MW
Heat rate—thermal plants only
First online1914
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 | 45.7 | 65.2% | — |
| 2002 | 46.2 | 65.9% | — |
| 2003 | 48.9 | 69.7% | — |
| 2004 | 4.6 | 6.5% | — |
| 2005 | 49.6 | 75.8% | — |
| 2006 | 50.3 | 76.9% | — |
| 2007 | 43.1 | 65.5% | — |
| 2008 | 53.7 | 81.6% | — |
| 2009 | 54.6 | 83.1% | — |
| 2010 | 53.8 | 81.9% | — |
| 2011 | 18.2 | 27.7% | — |
| 2012 | 24.9 | 37.8% | — |
| 2013 | 12.3 | 18.7% | — |
| 2014 | 47 | 71.6% | — |
| 2015 | 38.2 | 58.2% | — |
| 2016 | 46.2 | 70.1% | — |
| 2017 | 56.2 | 85.6% | — |
| 2018 | 46.5 | 70.8% | — |
| 2019 | 52.9 | 83.9% | — |
| 2020 | 43 | 68.0% | — |
| 2021 | 45.1 | 71.4% | — |
| 2022 | 52.2 | 82.8% | — |
| 2023 | 53.9 | 85.5% | — |
| 2024 | 52.5 | 83.0% | — |
| 2025 | 44.1 | 69.9% | — |
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 | 3.6 | 3.6 | Jan 1914 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 3.6 | 3.6 | Jan 1920 | 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% | 7 MW |
Nearby plants
Within 80 km.
| Sugar Island | 4 MW | 2.6 km |
| Colton | 30 MW | 4.1 km |
| Clarkson Solar | 2 MW | 6.2 km |
| NY Potsdam 28 Hamilton St. Solar | 4 MW | 6.7 km |
| NY Lancaster Shisler Rd Site 2 Solar CSG | 5 MW | 6.7 km |
| Sissonville Hydro | 3 MW | 7.7 km |