International Paper Woronoco Mill
Hampden County, Massachusetts · EIA plant ID 50166 · Operator: Eagle Creek RE LLC
Nameplate3MWSummer 3 MW
Generators3in service
Net generation7GWh12 mo to Dec 2025
Capacity factor30%hydro units, summer MW
Heat rate—thermal plants only
First online1913
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) |
|---|---|---|---|
| 2019 | 6.7 | 30.7% | — |
| 2020 | 8.6 | 39.1% | — |
| 2021 | 9.3 | 42.4% | — |
| 2022 | 5.7 | 26.0% | — |
| 2023 | 6.2 | 28.4% | — |
| 2024 | 5.4 | 24.6% | — |
| 2025 | 6.6 | 30.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 0.5 | 0.4 | Jan 1916 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 1.8 | 1.7 | Jan 1913 | Operating | — | coming soon |
| GEN2A | Conventional Hydroelectric | HY | 0.5 | 0.4 | Jan 1916 | Operating | — | coming soon |
Owner / operator
Operator: Eagle Creek RE LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Woronoco Hydro, LLC | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Russell (MA) | 3 MW | 2.1 km |
| Indian River Hydro | 1 MW | 3.2 km |
| Cobble Mountain | 33 MW | 6 km |
| CED Westfield Solar, LLC | 2 MW | 6.1 km |
| Holiday Hill Community Wind | 5 MW | 6.5 km |
| Twiss Street Solar | 2 MW | 6.8 km |