FILE -- Views of units 3, from left, and 4 at Plant Vogtle near Waynesboro, Ga., on Monday, July 31, 2023. Georgia Power Co. announced on Thursday, Feb. 1, 2024 that commercial operation of Unit 4 will be delayed into 2024's second quarter after the company detected and fixed a vibration problem in the reactor's cooling system. (Arvin Temkar/Atlanta Journal-Constitution via AP, file)