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Oconee 3 - Plant Information & Status

Detailed technical specifications, licensing info, and upcoming refueling outage schedules for the Oconee 3 nuclear power facility.

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Oconee 3 Lifecycle: Commissioned Reactor: ONLINE

Duke Energy · Oconee
Melissa Cogdill and Kevin Robinson
Melissa Cogdill and Kevin Robinson

Contact Information

Address: 155 East Pickens Highway
Seneca, SC 29672
Phone: (864) 885-3000

Technical Specifications

Reactor Type: PWR ( PWR-DRYAMB)
Net Output: 859 MWe
Thermal Power: 2610 MWt
Efficiency: 32.91%

Licensing & Regulatory Details

Docket #: 05000287
License #: DPR-55 ( OL-FP)
Construction Permit: 1967-11-06
Operating License: 1974-07-19
License Renewed: 2000-05-23
Commercial Ops: 1974-12-16
Expiration Date: 2034-07-19

Site History & Construction

NSS Supplier: B&W LLP
Constructor: DUKE
Architect Engineer: DBDB

Current Reactor Status (NRC Data)

100%
ONLINE
Report Date:
March 20, 2026
Lifecycle: Commissioned | Reactor: ONLINE
Recent Power History
Date Power Level Visual
Mar 20 100%
Mar 19 100%
Mar 18 100%
Mar 17 100%
Mar 16 100%
Mar 13 100%
Mar 12 100%
Mar 11 100%
Mar 10 100%
Mar 9 100%
Mar 6 100%
Mar 5 100%
Mar 4 100%
Mar 3 100%

Upcoming Outage

Start Date Duration
2026-05-01 24 Days

Facility Statistics

Lifecycle & Tenure
Op. Age: 51.3 Yrs
Build Time: 7.1 Yrs
Lic. Remain: 8.3 Yrs
Production & Power
Lifetime CF: 92.4%
Efficiency: 32.9%
Generated: 189.2 TWh
Reliability & Outages
Record Run: 728 Days
Refuelings (Since '99): 15
Prediction Acc: 67%