Hiram
Cumberland County, Maine · EIA plant ID 1493 · Operator: Brookfield White Pine Hydro LLC
Nameplate11MWSummer 12 MW
Generators2in service
Net generation31GWh12 mo to Dec 2025
Capacity factor31%hydro units, summer MW
Heat rate—thermal plants only
First online1917
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 | 34.1 | 39.0% | — |
| 2002 | 43.2 | 42.5% | — |
| 2003 | 107.7 | 105.9% | — |
| 2004 | 49.9 | 49.0% | — |
| 2005 | 56 | 55.1% | — |
| 2006 | 62.7 | 61.7% | — |
| 2007 | 46.7 | 46.0% | — |
| 2008 | 63.5 | 62.4% | — |
| 2009 | 59.3 | 58.3% | — |
| 2010 | 53.8 | 53.0% | — |
| 2011 | 51.5 | 50.7% | — |
| 2012 | 55.7 | 54.7% | — |
| 2013 | 44.2 | 43.5% | — |
| 2014 | 49.6 | 48.8% | — |
| 2015 | 42.5 | 41.8% | — |
| 2016 | 40.8 | 40.0% | — |
| 2017 | 39.1 | 38.4% | — |
| 2018 | 40 | 39.3% | — |
| 2019 | 46 | 45.3% | — |
| 2020 | 46.6 | 45.8% | — |
| 2021 | 39.3 | 38.7% | — |
| 2022 | 37.6 | 37.0% | — |
| 2023 | 53.8 | 52.9% | — |
| 2024 | 40.2 | 39.4% | — |
| 2025 | 31.3 | 30.8% | — |
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 | 2.4 | 3.1 | Jan 1917 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 8.1 | 8.5 | Jan 1985 | 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% | 11 MW |
Nearby plants
Within 80 km.
| West Baldwin Solar Station | — | 1.9 km |
| Baldwin | 5 MW | 7.3 km |
| 549 Doles Ridge Rd Solar LLC | — | 20.5 km |
| Naples | 2 MW | 22 km |
| Fryeburg | 5 MW | 22.7 km |
| Standish | 5 MW | 23 km |