Dearborn
Chester County, South Carolina · EIA plant ID 3256 · Operator: Duke Energy Carolinas, LLC
Nameplate45MWSummer 42 MW
Generators3in service
Net generation70GWh12 mo to Dec 2025
Capacity factor19%hydro units, summer MW
Heat rate—thermal plants only
First online1923
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 | 73.6 | 20.0% | — |
| 2002 | 89.9 | 24.4% | — |
| 2003 | 232.4 | 63.2% | — |
| 2004 | 173.4 | 47.0% | — |
| 2005 | 192.4 | 52.3% | — |
| 2006 | 140.6 | 38.2% | — |
| 2007 | 106.2 | 28.9% | — |
| 2008 | 86.1 | 23.4% | — |
| 2009 | 154.5 | 42.0% | — |
| 2010 | 143.9 | 39.1% | — |
| 2011 | 121.5 | 33.0% | — |
| 2012 | 104.2 | 28.2% | — |
| 2013 | 202.8 | 55.1% | — |
| 2014 | 138.3 | 37.6% | — |
| 2015 | 145.3 | 39.5% | — |
| 2016 | 141.8 | 38.4% | — |
| 2017 | 135.6 | 36.9% | — |
| 2018 | 222.1 | 60.4% | — |
| 2019 | 166.3 | 45.2% | — |
| 2020 | 167.3 | 45.3% | — |
| 2021 | 107 | 29.1% | — |
| 2022 | 109.4 | 29.7% | — |
| 2023 | 86.9 | 23.6% | — |
| 2024 | 91.5 | 24.8% | — |
| 2025 | 70.2 | 19.1% | — |
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 | 15 | 14 | Mar 1923 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 15 | 14 | Mar 1923 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 15 | 14 | Mar 1923 | 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% | 45 MW |
Nearby plants
Within 80 km.
| Great Falls (SC) | 12 MW | 0.1 km |
| Cedar Creek | 45 MW | 2.4 km |
| Fishing Creek | 42 MW | 4.6 km |
| Longtown Energy Storage | — | 15.9 km |
| Crown | 3 MW | 18.6 km |
| Wateree Hydro | 91 MW | 30.3 km |