G. G. Allen Steam Station was a 1.140 GW coal-fired electricity generating facility, located in South Point Township, Gaston County, North Carolina, on man-made Lake Wylie (part of the Catawba River).

[1] Named for George Garland Allen, a former president and first chairman of the board for Duke Power, the Allen facility is the only Duke Energy station with five units under one roof.

In February 2021, Duke Energy in a filing to the North Carolina Utilities Commission advanced their planned closure for Unit 3 from December 31, 2021 to March 31, 2021.

[2][3] Two additional units were retired in 2021, followed by another in September 2023, and the final in December of 2024.

[4] G. G. Allen Steam Station is still a major air and water polluter in the region.