Oconee
Nuclear power plant in Oconee County, South Carolina. 2,666.7 MW of nameplate capacity across 3 generators, operated by Duke Energy Carolinas, LLC.
Also known as Oconee Nuclear Station · EIA plant 3265
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2,666.7 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- July 1973First generator online
- Operator
- Duke Energy Carolinas, LLCEIA operator ID 5416
- Grid
- DUKBalancing authority DUK
- Price nodes
- None linkedNo verified ISO node
- Location
- Oconee County, SC34.7939, −82.8986
- EIA plant ID
- 3265EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Oconee produces
Free · EIA-923Net generation, 2025
22.4 TWh
22,420,221 MWh, final
Capacity factor, 2025
Not reported
2024: 92.6%
January to July 2026
13.0 TWh
Provisional
Range, 2015 to 2025
21.1–22.4
TWh a year. Low 2022, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 20,386,294 | Not reported | 12 of 12 |
| 2001 | 19,040,496 | Not reported | 12 of 12 |
| 2002 | 20,685,092 | Not reported | 12 of 12 |
| 2003 | 19,128,731 | Not reported | 12 of 12 |
| 2004 | 18,667,495 | Not reported | 12 of 12 |
| 2005 | 20,621,576 | Not reported | 12 of 12 |
| 2006 | 19,919,098 | Not reported | 12 of 12 |
| 2007 | 20,564,650 | Not reported | 12 of 12 |
| 2008 | 20,181,101 | Not reported | 12 of 12 |
| 2009 | 20,892,237 | Not reported | 12 of 12 |
| 2010 | 20,943,025 | 89.7% | 12 of 12 |
| 2011 | 20,333,965 | 87.0% | 12 of 12 |
| 2012 | 20,647,480 | 88.1% | 12 of 12 |
| 2013 | 21,021,244 | 90.0% | 12 of 12 |
| 2014 | 21,193,381 | 90.7% | 12 of 12 |
| 2015 | 21,939,740 | 93.9% | 12 of 12 |
| 2016 | 21,177,103 | 90.4% | 12 of 12 |
| 2017 | 21,798,744 | 93.3% | 12 of 12 |
| 2018 | 21,294,245 | 91.2% | 12 of 12 |
| 2019 | 21,884,681 | 93.7% | 12 of 12 |
| 2020 | 21,542,267 | 92.0% | 12 of 12 |
| 2021 | 22,206,463 | 95.1% | 12 of 12 |
| 2022 | 21,125,129 | 90.4% | 12 of 12 |
| 2023 | 22,246,735 | 95.2% | 12 of 12 |
| 2024 | 21,698,342 | 92.6% | 12 of 12 |
| 2025 | 22,420,221 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 12,985,017 | 95.7% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
976,533
million gallons
Consumption, 2024
0
million gallons
Source
Lake Keowee
Surface, Fresh. Once-through
Watershed stress
Low · 0.201
USGS SUI, HUC12 Outlet Keowee River
36 of 36 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Nuclear | 886.7 | July 1973 |
| 2 | Nuclear | 886.7 | September 1974 |
| 3 | Nuclear | 893.3 | December 1974 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Duke Energy Carolinas, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Oconee
More plants operated by Duke Energy Carolinas, LLC
Questions about Oconee
How much power does Oconee produce?
Oconee reported 22,420,221 MWh (22.4 TWh) of net generation in 2025. From January to July 2026 it reported 13.0 TWh, which is provisional.
Where is Oconee?
Oconee is in Oconee County, South Carolina, at 34.7939, −82.8986. It is in the Duke Energy Carolinas balancing area (DUK).
Who operates Oconee?
EIA-860M for August 2026 lists Duke Energy Carolinas, LLC as the operator (EIA operator ID 5416). The operator is not always the owner.
When did Oconee start operating?
Its first generator began operating in July 1973, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page