Duke Energy will retire five coal-fired power plants in western Indiana by June 2018 under a settlement with environmental and citizens groups.
The settlement overseen by a state administrative law judge was signed Wednesday by Duke Energy, the Sierra Club, Citizens Action Coalition, Valley Watch and Save the Valley.
It commits Duke to retiring by June 1, 2018, four coal-fired power stations at its Wabash River Station in West Terre Haute that the utility had previously announced it planned to shutter.
Duke has also agreed to stop burning coal at a fifth station there by the same date.
The five stations together generate 668 megawatts of power.
The settlement ends the activist groups' challenge of Duke's air permit for its new $3.5 billion, 618-megawatt coal-gasification plant in southwestern Indiana.
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