Gaston Shoals
Cherokee County, South Carolina · EIA plant ID 3258 · Operator: Northbrook Carolina Hydro II, LLC
×1 MW hydro retired since 2020 (latest Jul 2025)
Nameplate5MWSummer 7 MW
Generators3in service
Net generation5GWh12 mo to Dec 2025
Capacity factor8%hydro units, summer MW
Heat rate—thermal plants only
First online1908
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 | 10.9 | 26.4% | — |
| 2002 | 12.5 | 30.5% | — |
| 2003 | 17 | 41.3% | — |
| 2004 | 18.3 | 44.4% | — |
| 2005 | 23.1 | 56.0% | — |
| 2006 | 15.3 | 37.1% | — |
| 2007 | 12.5 | 30.3% | — |
| 2008 | 10.8 | 26.2% | — |
| 2009 | 18 | 43.6% | — |
| 2010 | 13.8 | 33.5% | — |
| 2011 | 14.7 | 35.8% | — |
| 2012 | 16.2 | 39.3% | — |
| 2013 | 17.1 | 41.5% | — |
| 2014 | 9.9 | 24.1% | — |
| 2015 | 9 | 21.8% | — |
| 2016 | 10 | 16.3% | — |
| 2017 | 5.8 | 8.8% | — |
| 2018 | 14.7 | 22.4% | — |
| 2019 | 14.9 | 22.7% | — |
| 2020 | 30.7 | 46.6% | — |
| 2021 | 26.6 | 40.5% | — |
| 2022 | 20.1 | 30.6% | — |
| 2023 | 19.3 | 29.4% | — |
| 2024 | 12.9 | 19.6% | — |
| 2025 | 5 | 8.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 4 | Conventional Hydroelectric | HY | 1.4 | 2 | Aug 1908 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 1.4 | 2 | May 1908 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 2.5 | 2.5 | Aug 1927 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 1.4 | 1 | Aug 1908 | Retired Jul 2025 | — | coming soon |
Owner / operator
Operator: Northbrook Carolina Hydro II, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Northbrook Carolina Hydro II, LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Mohea Solar Energy Center, LLC | 5 MW | 6 km |
| Broad River Energy Center | 985 MW | 6.9 km |
| Cherokee County Cogen | 118 MW | 7.4 km |
| Beetle Solar | 4 MW | 7.6 km |
| Cherokee Falls | 4 MW | 9.5 km |
| Lafayette Solar I, LLC | 2 MW | 10.9 km |