CHICAGO – Attorney General Kwame Raoul announced that some Ameren Illinois (Ameren) customers in central and southern Illinois will receive a credit on their upcoming power bills. The credits are the result of a $38 million settlement Raoul’s office reached with Dynegy Inc. (Dynegy), a subsidiary of Texas-based Vistra Corporation. The Federal Energy Regulatory Commission (FERC) approved the settlement in August 2025, resolving 10 years of investigation and litigation by the Attorney General’s office and other parties. It stems from the 2015 electricity capacity auction conducted by the Midcontinent Independent System Operator (MISO), which resulted in an electricity capacity price that was 40 times higher than all other MISO zones and nearly nine times higher than the prior year’s price. “

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