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Southern Co’s (SO.N) Georgia Power unit on Thursday said it delayed the start dates for two reactors under construction at the Vogtle nuclear plant in Georgia and that its share of the cost would rise by $460 million to an estimated $9.2 billion.

Georgia Power, which owns 45.7% of Vogtle, said Unit 3 was now on track to enter service in the second quarter of 2022 and Unit 4 in the first quarter of 2023.

Previously, the company said both reactors, which are already billions of dollars over budget and years behind schedule, were expected to enter service next year with Unit 3 in the first quarter of 2022 and Unit 4 by its regulatory-approved in service date of November 2022. read more

The Vogtle reactors are the only nuclear units under construction in the United States and will be the country’s first new reactors to enter service since 2016, when Tennessee Valley Authority finished Watts Bar 2 after 40 years of starts and stops.

[Scott DiSavino]

More: Southern delays Georgia Vogtle reactors startup, boosts costs

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