Orono Hydro Station
Penobscot County, Maine · EIA plant ID 57184 · Operator: Brookfield Black Bear Hydro, LLC
Nameplate3MWSummer 3 MW
Generators4in service
Net generation6GWh12 mo to Dec 2025
Capacity factor26%hydro units, summer MW
Heat rate—thermal plants only
First online2009
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) |
|---|---|---|---|
| 2009 | 14.5 | 65.6% | — |
| 2010 | 17.3 | 73.4% | — |
| 2011 | 17 | 71.8% | — |
| 2012 | 18.2 | 76.7% | — |
| 2013 | 11 | 46.4% | — |
| 2014 | 12.9 | 54.7% | — |
| 2015 | 12.3 | 51.9% | — |
| 2016 | 7.4 | 31.2% | — |
| 2017 | 7.2 | 30.4% | — |
| 2018 | 7.2 | 30.4% | — |
| 2019 | 9.7 | 41.0% | — |
| 2020 | 9.3 | 39.0% | — |
| 2021 | 12.6 | 53.4% | — |
| 2022 | 9.9 | 41.9% | — |
| 2023 | 11.6 | 49.2% | — |
| 2024 | 5.8 | 24.5% | — |
| 2025 | 6.2 | 26.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 0.5 | 0.5 | Mar 2009 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.6 | 0.6 | Mar 2009 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 0.8 | 0.8 | Jan 2009 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 0.8 | 0.8 | Jan 2009 | Operating | — | coming soon |
Owner / operator
Operator: Brookfield Black Bear Hydro, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Brookfield Black Bear Hydro, LLC | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Orono B | 4 MW | 0.5 km |
| Stillwater Hydro Station | 2 MW | 3.6 km |
| Stillwater B | 2 MW | 3.9 km |
| Red Shield Envir Old Town Facility | 29 MW | 4.8 km |
| ME CDG 005 | 2 MW | 5.3 km |
| Milford Hydro Station | 8 MW | 7 km |