Wisconsin Power and Light Co., along with co-owners Wisconsin Public Service Corp. and Madison Gas and Electric Co., received oral approval from the Public Service Commission of Wisconsin to install additional emissions reduction technology at the two-unit, 1,023 MW Columbia Energy Center.

This project is designed to reduce mercury emissions through an activated carbon injection system and baghouse to comply with Wisconsin’s mercury rule. It also is designed to reduce sulfur dioxide emissions through dry flue gas desulfurization systems. The utility said this equipment will provide flexibility in complying with state and federal SO2 emissions requirements such as the Clean Air Interstate Rule, the EPA’s proposed Clean Air Transport Rule and the Clean Air Visibility Rule.

WPL’s share of the entire project is expected to cost $290 million excluding allowance for funds used during construction. 

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