Wateree Hydro
Kershaw County, South Carolina · EIA plant ID 3270 · Operator: Duke Energy Carolinas, LLC
Nameplate91MWSummer 74 MW
Generators5in service
Net generation137GWh12 mo to Dec 2025
Capacity factor21%hydro units, summer MW
Heat rate—thermal plants only
First online1919
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 | 88.1 | 12.1% | — |
| 2002 | 118.6 | 15.9% | — |
| 2003 | 385.8 | 51.8% | — |
| 2004 | 227.5 | 30.5% | — |
| 2005 | 234.2 | 31.4% | — |
| 2006 | 174 | 23.4% | — |
| 2007 | 138 | 18.5% | — |
| 2008 | 112.4 | 15.1% | — |
| 2009 | 234.8 | 31.5% | — |
| 2010 | 202 | 27.1% | — |
| 2011 | 136 | 18.3% | — |
| 2012 | 125.8 | 16.9% | — |
| 2013 | 303.9 | 40.8% | — |
| 2014 | 232.8 | 31.3% | — |
| 2015 | 238.4 | 32.0% | — |
| 2016 | 187.8 | 25.2% | — |
| 2017 | 170.3 | 22.9% | — |
| 2018 | 336 | 45.1% | — |
| 2019 | 319.4 | 42.9% | — |
| 2020 | 401.2 | 53.7% | — |
| 2021 | 228.4 | 30.7% | — |
| 2022 | 188.4 | 25.3% | — |
| 2023 | 201.3 | 31.1% | — |
| 2024 | 255.3 | 39.3% | — |
| 2025 | 137.3 | 21.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 18.1 | 17 | Oct 1919 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 18.1 | 17 | Oct 1919 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 18.1 | 17 | Oct 1919 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 18.1 | 17 | Oct 1919 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 18.1 | 6 | Oct 1919 | Operating | — | coming soon |
Owner / operator
Operator: Duke Energy Carolinas, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Duke Energy Carolinas, LLC | 100.0% | 91 MW |
Nearby plants
Within 80 km.
| Camden South Carolina | 19 MW | 12.1 km |
| Longtown Energy Storage | — | 17.7 km |
| Richland County Landfill | 9 MW | 27.1 km |
| Cedar Creek | 45 MW | 27.9 km |
| Dearborn | 45 MW | 30.3 km |
| Great Falls (SC) | 12 MW | 30.3 km |