The generator at Vogtle Unit 3 has generated electricity for the first time, and the unit has successfully synchronized and connected to the electric grid. Meanwhile, at Vogtle Unit 4, nuclear operators began hot functional testing last month. Both achievements represent significant steps toward operations.
Connecting to the electric grid is part of ongoing startup testing for Vogtle Unit 3, and operators will continue to raise reactor power for electricity generation while performing tests at various power levels. This Unit 3 milestone follows initial criticality, reached on March 6, when operators safely started the nuclear reaction inside the reactor, generating nuclear heat to produce steam. Once all startup testing is successfully completed and the unit is available for reliable dispatch, the unit will enter commercial operation.
The in-service date for Unit 3 is projected during May or June 2023. Vogtle Unit 4 is projected to enter service in late fourth quarter 2023 or first quarter 2024.
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