04 September 2013 - Duke Energy has reached a settlement with the Sierra Club, Citizens Action Coalition, Save the Valley and Valley Watch over outstanding issues with the Edwardsport power plant air permits. The settlement also addresses deadlines for retiring units at Duke Energy's Wabash River Station in West Terre Haute. Prior to the settlement, the company had announced it planned to retire four, 1950s-vintage units totaling 350 MW at the station by the 2015 federal mercury rule deadline. In the agreement, the company agrees to complete the retirements by the compliance deadline or, if the mercury rule is vacated or delayed, by 1 June 2018, whichever occurs first. Duke Energy also had been exploring converting another unit at Wabash River Station to natural gas, and, under the settlement, the company agrees to cease burning coal at that 318 MW unit by 1 June 2018. The deadline will not prevent Duke Energy from converting the unit to natural gas earlier.
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