TVA's newest reactor reaches 100 percent power

as Unit 2 comes online at the TVA Watts Bar Nuclear Plant on Thursday, Oct. 22, 2015, near Spring City, Tenn.
photo The TVA Watts Bar Nuclear Plant is photographed on Thursday, Oct. 22, 2015, near Spring City, Tenn., as Unit 2 begins producing electricity for the first time, 43 years after construction began at the site.

The Tennessee Valley was powered this week by a record amount of electricity generated from splitting atoms.

With TVA's newest nuclear unit at the Watts Bar Nuclear Plant reaching 100 percent power this week, the seven reactors in the TVA fleet accounted for more than 40 percent of TVA's power generation this week for the first time in TVA's 83-year history.

The Watts Bar Unit 2 reactor reached full power after TVA restarted the new unit on Monday following a four-week outage caused by a fire at one of the main transformer's in the Watts Bar switch yard last month, TVA spokesman Jim Hopson said Friday.