Watts Bar
Watts Bar, nuclear power plant in United States, operates 2 pressurized water reactors with 2,321 MW net installed capacity and has been in service since 1996.
Unit Watts Bar 1 has been operating for 30 years, since 1996. Its 2,321 MW net are enough to supply about 7,310,000 households.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- 2,321 MWe
- First grid connection
- 1996
- Operator
- Tennessee Valley Authority
- Owner
- Tennessee Valley Authority
- Status
- Operating
See also: alerts for this plant · every plant in United States · Nuclear power plants in Tennessee · Vendor: Westinghouse · every PWR reactor · how a PWR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Licence until | Load factor |
|---|---|---|---|---|---|---|---|---|---|---|
| Watts Bar 1 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Operating | 1,157 | 3,459 | Jul 20, 1973 | Feb 6, 1996 | — | Nov 9, 2035 | 84.1 % (2024) |
| Watts Bar 2 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Operating | 1,164 | 3,411 | Sep 1, 1973 | Jun 3, 2016 | — | Oct 21, 2055 | 99.8 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Watts Bar 1, a 1,157 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1973, was connected to the grid in 1996 and is still operating, with a 84.1% load factor in 2024.
Watts Bar 2, a 1,164 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1973, was connected to the grid in 2016 and is still operating, with a 99.8% load factor in 2024.
Operator: Tennessee Valley Authority.