this week that the 1,114-megawatt Unit 4 nuclear power reactor at Plant Vogtle near Waynesboro, Georgia, entered into commercial operation after connecting to the power grid in. The commercial start of Unit 4 completes the 11-year expansion project at Plant Vogtle. No nuclear reactors are under construction now in the United States., surpassing the 4,210-MW Palo Verde plant in Arizona and making Vogtle’s four units the largest nuclear power plant in the United States..
The commercial operating date is when builders hand over a reactor to the plant owner or operator, declaring the reactor to be officially in commercial operation.of about 97 GW, the largest commercial nuclear generating fleet of any country is located in the United States. The fleet of operating nuclear power reactors accounted for nearly 19% of domestic electricity production in 2023, making nuclear the second-largest source of U.S.
Vogtle Units 3 and 4 are the first and only U.S. deployments of the AP1000 Generation III+ reactor. Two other Westinghouse AP1000 reactors were planned for a nuclear power plant in South Carolina, but utilities there halted construction in 2017. The EIA collects, analyzes, and disseminates independent and impartial energy information to promote sound policymaking, efficient markets, and public understanding of energy and its interaction with the economy and the environment.