Cataract Hydro
York County, Maine · EIA plant ID 1486 · Operator: Brookfield White Pine Hydro LLC
Nameplate7MWSummer 8 MW
Generators1in service
Net generation23GWh12 mo to Dec 2025
Capacity factor33%hydro units, summer MW
Heat rate—thermal plants only
First online1937
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 | 30.1 | 54.8% | — |
| 2002 | 35.7 | 50.9% | — |
| 2003 | 36.4 | 66.3% | — |
| 2004 | 24.5 | 44.5% | — |
| 2005 | 0 | 0.0% | — |
| 2006 | 19.9 | 36.3% | — |
| 2007 | 38.1 | 69.1% | — |
| 2008 | 47 | 66.9% | — |
| 2009 | 52.9 | 75.5% | — |
| 2010 | 39.9 | 56.9% | — |
| 2011 | 43.1 | 61.4% | — |
| 2012 | 40.5 | 57.6% | — |
| 2013 | 33.1 | 47.3% | — |
| 2014 | 37.6 | 53.6% | — |
| 2015 | 30.7 | 43.8% | — |
| 2016 | 23.4 | 33.3% | — |
| 2017 | 25.5 | 36.4% | — |
| 2018 | 19.9 | 28.4% | — |
| 2019 | 9.7 | 13.9% | — |
| 2020 | 17 | 24.1% | — |
| 2021 | 0 | 0.0% | — |
| 2022 | 0 | 0.0% | — |
| 2023 | 2 | 2.8% | — |
| 2024 | 28.5 | 40.5% | — |
| 2025 | 23.1 | 33.0% | — |
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 | 6.6 | 8 | Jan 1937 | Operating | — | coming soon |
Owner / operator
Operator: Brookfield White Pine Hydro LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Brookfield White Pine Hydro LLC | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| MEVS Waterhouse | 2 MW | 10.8 km |
| Skelton | 17 MW | 12.3 km |
| BWC Beech Ridge Brook, LLC | 5 MW | 13.6 km |
| Bar Mills | retired | 15.6 km |
| South Portland ESS, LLC | — | 17 km |
| Larson | 5 MW | 17.4 km |