Wisconsin Public Service Corp wins approval for new type of emissions control system

The Wisconsin Public Service Commission has approved the use of regenerative activated coke technology, or ReACT, at a coal-fired power plant near Wausau, Wisc., according to the Milwaukee Journal Sentinel. The plant will be the first in the U.S. to use the emissions control system, which will cost around $275 million.

The system will be installed at the 321 MW Weston 3 boiler owned by Wisconsin Public Service Corp. The company had filed for a Certificate of Authority to install the system in May 2012. According to the Journal Sentinel, the commission applauded the utility’s decision to try to find a pollution control system that is more cost effective than other alternatives. The system is expected to reduce plant sulfur dioxide emissions by more than 90 percent, mercury by more than 90 percent, and nitrogen oxide by 20 to 60 percent.

The technology has been used in Japan for many years and successfully demonstrated in the U.S. as part of an Electric Power Research Institute project hosted by Sierra Pacific Power at its North Valmy Station.

The emissions control system is being installed as part of a settlement with the U.S. Environmental Protection Agency, and installation is expected to begin this year and be completed in 2017.

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