Wyman Hydro
Somerset County, Maine · EIA plant ID 1511 · Operator: Brookfield White Pine Hydro LLC
Nameplate72MWSummer 89 MW
Generators3in service
Net generation295GWh12 mo to Dec 2025
Capacity factor38%hydro units, summer MW
Heat rate—thermal plants only
First online1930
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 | 276.7 | 46.2% | — |
| 2002 | 238.1 | 32.8% | — |
| 2003 | 318.2 | 43.8% | — |
| 2004 | 344.4 | 47.2% | — |
| 2005 | 511.3 | 70.3% | — |
| 2006 | 458 | 63.0% | — |
| 2007 | 381.2 | 52.4% | — |
| 2008 | 514.6 | 70.6% | — |
| 2009 | 450.8 | 62.0% | — |
| 2010 | 405.6 | 55.8% | — |
| 2011 | 397.3 | 54.6% | — |
| 2012 | 359.1 | 49.3% | — |
| 2013 | 383.4 | 52.7% | — |
| 2014 | 384.4 | 52.9% | — |
| 2015 | 369.3 | 50.8% | — |
| 2016 | 298.7 | 38.4% | — |
| 2017 | 412.7 | 53.2% | — |
| 2018 | 353 | 45.5% | — |
| 2019 | 391.1 | 50.4% | — |
| 2020 | 343.8 | 44.2% | — |
| 2021 | 229.7 | 29.6% | — |
| 2022 | 384.6 | 49.6% | — |
| 2023 | 501.6 | 64.7% | — |
| 2024 | 337.1 | 43.4% | — |
| 2025 | 295.2 | 38.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WY1 | Conventional Hydroelectric | HY | 24 | 29.4 | Jan 1930 | Operating | — | coming soon |
| WY2 | Conventional Hydroelectric | HY | 24 | 29.9 | Jan 1931 | Operating | — | coming soon |
| WY3 | Conventional Hydroelectric | HY | 24 | 29.2 | Jan 1940 | 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% | 72 MW |
Nearby plants
Within 80 km.
| MEVS Clark LLC | 5 MW | 1.8 km |
| Moscow | 59 MW | 9 km |
| Bingham Wind | 186 MW | 11.9 km |
| Cenergy - Kiger | 1 MW | 11.9 km |
| Williams Hydro | 13 MW | 12.7 km |
| ME-EDFR-Phase I-Embden | 5 MW | 13.7 km |