Catawba
York County, South Carolina · EIA plant ID 6036 · Operator: Duke Energy Carolinas, LLC
Nameplate2,410MWSummer 2,310 MW
Generators2in service
Net generation18,300GWh12 mo to Aug 2026
Capacity factor90%nuclear units, summer MW
Heat rate—thermal plants only
First online1985
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), nuclear 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 | 18,551.1 | 93.8% | — |
| 2002 | 19,653.9 | 99.4% | — |
| 2003 | 17,496.1 | 88.4% | — |
| 2004 | 18,546.8 | 93.5% | — |
| 2005 | 19,276.4 | 97.5% | — |
| 2006 | 16,894.2 | 85.4% | — |
| 2007 | 18,418.3 | 93.1% | — |
| 2008 | 18,976.5 | 95.7% | — |
| 2009 | 17,912.3 | 90.6% | — |
| 2010 | 18,964.1 | 95.9% | — |
| 2011 | 18,778.6 | 94.9% | — |
| 2012 | 17,829.3 | 89.9% | — |
| 2013 | 19,166 | 95.5% | — |
| 2014 | 18,711.5 | 93.3% | — |
| 2015 | 18,377.5 | 91.6% | — |
| 2016 | 19,558.3 | 96.4% | — |
| 2017 | 19,706.7 | 97.4% | — |
| 2018 | 18,779.7 | 92.8% | — |
| 2019 | 19,593.6 | 96.8% | — |
| 2020 | 19,356.7 | 95.4% | — |
| 2021 | 18,585.7 | 91.8% | — |
| 2022 | 18,962.9 | 93.7% | — |
| 2023 | 19,165.5 | 94.7% | — |
| 2024 | 18,465.6 | 91.0% | — |
| 2025 | 19,414.4 | 95.9% | — |
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 | Nuclear | ST | 1,205.1 | 1,160 | Jun 1985 | Operating | — | coming soon |
| 2 | Nuclear | ST | 1,205.1 | 1,150.1 | Aug 1986 | 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).
| North Carolina Mun Power Agny #1 | 37.5% | 904 MW |
| North Carolina El Member Corp | 30.8% | 741 MW |
| Duke Energy Carolinas, LLC | 19.3% | 464 MW |
| Piedmont Municipal Power Agny | 12.5% | 301 MW |
Nearby plants
Within 80 km.
| Wylie | 60 MW | 6.5 km |
| Sediver | 3 MW | 14.4 km |
| Allen 1 Battery Energy Storage System | 50 MW | 15.9 km |
| G G Allen | retired | 16.2 km |
| Allen 2 BESS | — | 16.5 km |
| Pineville Delivery 1 | 2 MW | 17.9 km |