Rolfe Canal Hydro
Merrimack County, New Hampshire · EIA plant ID 50351 · Operator: Briar-Hydro Associates
Nameplate4MWSummer 4 MW
Generators1in service
Net generation16GWh12 mo to Dec 2025
Capacity factor43%hydro units, summer MW
Heat rate—thermal plants only
First online1987
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 | 12.5 | 33.2% | — |
| 2002 | 16.5 | 43.8% | — |
| 2003 | 23.5 | 62.5% | — |
| 2004 | 20.8 | 55.1% | — |
| 2005 | 27.1 | 71.9% | — |
| 2006 | 30.2 | 80.1% | — |
| 2007 | 19 | 50.3% | — |
| 2008 | 26.9 | 71.3% | — |
| 2009 | 28.3 | 75.0% | — |
| 2010 | 19.2 | 51.0% | — |
| 2011 | 26.7 | 70.8% | — |
| 2012 | 19 | 50.2% | — |
| 2013 | 20 | 53.2% | — |
| 2014 | 24.4 | 64.8% | — |
| 2015 | 17.6 | 46.8% | — |
| 2016 | 14.5 | 38.5% | — |
| 2017 | 22.5 | 59.7% | — |
| 2018 | 15.1 | 40.1% | — |
| 2019 | 21.1 | 56.0% | — |
| 2020 | 18.4 | 48.8% | — |
| 2021 | 23.2 | 61.6% | — |
| 2022 | 19.1 | 50.7% | — |
| 2023 | 27.8 | 73.8% | — |
| 2024 | 17.3 | 45.7% | — |
| 2025 | 16.3 | 43.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 4.3 | 4.3 | Dec 1987 | Operating | — | coming soon |
Owner / operator
Operator: Briar-Hydro Associates. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Briar-Hydro Associates | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Penacook Upper Falls Hydro | 3 MW | 1 km |
| Penacook Lower Falls | 5 MW | 1.4 km |
| Wheelabrator Concord Facility | 14 MW | 2.6 km |
| Garvins Falls | 12 MW | 14.3 km |
| EHC West Hopkinton | 1 MW | 15 km |
| Merrimack | 496 MW | 18.4 km |