Sugar Island
St. Lawrence County, New York · EIA plant ID 2616 · Operator: Erie Boulevard Hydropower LP
Nameplate4MWSummer 4 MW
Generators2in service
Net generation23GWh12 mo to Dec 2025
Capacity factor63%hydro units, summer MW
Heat rate—thermal plants only
First online1924
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 | 30.9 | 88.3% | — |
| 2002 | 20 | 57.0% | — |
| 2003 | 25.4 | 72.5% | — |
| 2004 | 2.3 | 6.6% | — |
| 2005 | 25.4 | 71.8% | — |
| 2006 | 30 | 84.9% | — |
| 2007 | 23.9 | 66.5% | — |
| 2008 | 26.6 | 73.8% | — |
| 2009 | 28.8 | 80.2% | — |
| 2010 | 28.1 | 78.3% | — |
| 2011 | 22.9 | 63.9% | — |
| 2012 | 22.3 | 62.0% | — |
| 2013 | 30.9 | 86.0% | — |
| 2014 | 27 | 75.3% | — |
| 2015 | 25.2 | 70.3% | — |
| 2016 | 24.4 | 67.7% | — |
| 2017 | 31.8 | 88.6% | — |
| 2018 | 24.5 | 68.1% | — |
| 2019 | 28.3 | 78.7% | — |
| 2020 | 22.4 | 62.1% | — |
| 2021 | 23.5 | 65.5% | — |
| 2022 | 29.5 | 82.2% | — |
| 2023 | 29.7 | 82.7% | — |
| 2024 | 28.1 | 78.1% | — |
| 2025 | 22.7 | 63.2% | — |
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 | 2 | 2.1 | Jan 1924 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 2 | 2 | Jan 1924 | 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% | 4 MW |
Nearby plants
Within 80 km.
| Hannawa | 7 MW | 2.6 km |
| Clarkson Solar | 2 MW | 3.9 km |
| NY Lancaster Shisler Rd Site 2 Solar CSG | 5 MW | 4.2 km |
| NY Potsdam 28 Hamilton St. Solar | 4 MW | 4.2 km |
| Sissonville Hydro | 3 MW | 5.3 km |
| Colton | 30 MW | 6.6 km |