Illinois had big plans to turn a bunch of old coal plant sites into solar and battery farms. The program was supposed to lead to at least six significant solar and battery storage arrays and five larger stand-alone battery banks. “The clean energy transition and how we incorporate a just transition and energy community reinvestment is new. The diagnosis Only two companies had sites eligible for the Illinois program: NRG Energy and Vistra, which helped craft the initiative and pushed legislators to include it in the state’s 2021 clean energy law. Illinois has a larger incentive program for solar that offers flexible credit prices.