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Alliant Energy will retire the Columbia Energy Center by the end of 2024 -- the last of its coal-fired facilities in Wisconsin.
Alliant had closed its Cassville plant in 2015. Its Sheboygan facility is slated to retire at the end of 2022.
The retirement of the almost 50-year-old Columbia facility will bring Alliant closer to its goal of reducing carbon emissions by 50 percent by 2030 and elimina...