Nuclear reactors and cooling towers of the four units of Plant Vogtle, a nuclear plant near Waynesboro, Ga., are shown on July 31, 2023. Georgia Power Co. announced Thursday, Aug. 17, 2023, that Unit 4, at far right, is loading fuel, with the aim of sending power to the grid reliably by March 2024. Unit 4 and the now-operating Unit 3 and Unit 4 are the first new American reactors built from scratch in decades. (Arvin Temkar/Atlanta Journal-Constitution via AP, File)