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Illinois EPA issues Taylorville Energy Center its final air permit

The Illinois Environmental Protection Agency (IEPA) has issued the final amended air permit for the Taylorville Energy Center, managed by Tenaska. When completed, the 716 MW plant in Taylorville, Ill. is expected to emit 1/40th the level of sulfur dioxide and nitrogen oxides of an average U.S. coal-fired power plant.

Following the release of a draft air permit on Oct. 17, IEPA received numerous comments that have been addressed with the issuance of this final permit. IEPA made many changes to the draft permit, the most significant of which lowered permissible mercury emissions by 90 percent following a request from Tenaska. Also requested by Tenaska was a binding limit on carbon emissions.

As IEPA was considering public comments on the TEC permit, the U.S. EPA proposed the New Source Performance Standards for Greenhouse Gas Emissions for new power plants on March 27. With certain exceptions, the proposed standards would limit CO2 emissions from any new fossil-fueled power plant to 1,000 lbs. per megawatt hour. This final air permit for TEC includes a power block CO2 emissions limit of 827 lbs/MWh (gross).

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