Duke Energy Carolinas LLC has notified regulators that on Dec. 31 it will retire two units consisting of 434 MW of capacity at its 860-MW G.G. Allen coal-fired plant in North Carolina.
The Duke Energy Corp. subsidiary on Dec. 3 filed notices of the revised retirement dates for units 2 and 4 at the Allen plant in Gaston County, N.C., with the North Carolina Utilities Commission and the Public Service Commission of South Carolina.
The 167-MW unit 2 was placed in service in November 1957 with the 267-MW unit 4 placed in service in October 1960, according to S&P Global Market Intelligence data. Duke Energy previously planned to retire unit 2 on Dec. 31, 2024, followed by unit 4 on Dec. 31, 2026.
The preferred portfolio in the integrated resource plans for Duke Energy Carolinas and affiliate utility Duke Energy Progress LLC called for the retirement of Allen units 2 and 4 in 2022, followed by units 1 and 5 in 2024. Unit 3 at the Allen plant was retired in March.
“Based upon the units’ condition and economic evaluations, the company has determined that Allen Units 2 and 4 will no longer provide economic and reliable commercial service to customers, and the units will be retired effective December 31, 2021,” Duke Energy wrote in its filings.