S C Moore
Grafton County, New Hampshire · EIA plant ID 2351 · Operator: Great River Hydro, LLC
Nameplate195MWSummer 193 MW
Generators5in service
Net generation255GWh12 mo to Dec 2025
Capacity factor15%hydro units, summer MW
Heat rate—thermal plants only
First online1957
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 | 207.3 | 17.7% | — |
| 2002 | 271.4 | 16.9% | — |
| 2003 | 259.5 | 16.1% | — |
| 2004 | 238.6 | 14.2% | — |
| 2005 | 339 | 20.2% | — |
| 2006 | 368.2 | 22.0% | — |
| 2007 | 305.4 | 17.9% | — |
| 2008 | 381.5 | 22.3% | — |
| 2009 | 314.3 | 18.5% | — |
| 2010 | 302.4 | 17.8% | — |
| 2011 | 332.2 | 19.5% | — |
| 2012 | 230.6 | 13.8% | — |
| 2013 | 267.1 | 16.0% | — |
| 2014 | 280.9 | 16.8% | — |
| 2015 | 268.2 | 16.2% | — |
| 2016 | 233.4 | 14.1% | — |
| 2017 | 317.1 | 19.2% | — |
| 2018 | 266.4 | 16.1% | — |
| 2019 | 336.2 | 20.3% | — |
| 2020 | 241.1 | 14.5% | — |
| 2021 | 170.5 | 10.3% | — |
| 2022 | 248.8 | 15.0% | — |
| 2023 | 327.6 | 19.7% | — |
| 2024 | 341.5 | 20.1% | — |
| 2025 | 254.7 | 15.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 47.7 | 47.2 | Jan 1957 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 47.7 | 47.2 | Jan 1957 | Operating | — | coming soon |
| GEN3 | Conventional Hydroelectric | HY | 47.7 | 47.2 | Jan 1957 | Operating | — | coming soon |
| GEN4 | Conventional Hydroelectric | HY | 47.7 | 47.2 | Jan 1957 | Operating | — | coming soon |
| GEN5 | Conventional Hydroelectric | HY | 4.6 | 4.6 | Oct 2023 | Operating | — | coming soon |
Owner / operator
Operator: Great River Hydro, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Great River Hydro, LLC | 100.0% | 195 MW |
Nearby plants
Within 80 km.
| Comerford | 168 MW | 10.2 km |
| East Barnet | 2 MW | 12.9 km |
| Golden Solar | 2 MW | 13.4 km |
| Gilman Mill | 5 MW | 14.7 km |
| GSPP Gilman, LLC | 2 MW | 15.4 km |
| Pinetree Power | 18 MW | 15.5 km |