Watts Bar-1, United States
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| Reactor Type | Commercial Reactor |
| Process | PWR |
| Vendor | Westinghouse |
| Owner | Tennessee Valley Authority |
| Model | W (4-loop) (ICECND) |
| Operator | Tennessee Valley Authority |
| Capacity Net | 1123 MWe |
| Capacity Gross | 1210 MWe |
| Capacity Thermal | 3459 MWt |
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| Start Construction | 23 January 1973 |
| Criticality | 1 January 1996 |
| Grid Connection | 6 February 1996 |
| Commercial Operation | 27 May 1996 |
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| Output Life | 146.65 TWh |
| Capacity Factor Life | 89.7 % |