Big biz challenges ComEd surcharge: An association including AbbVie and ADM is asking regulators to overturn a decision allowing ComEd to claw back more than $100 million in credits it previously made to customers.

An association representing more than 120 corporations, including high-profile locally based heavyweights like drugmaker AbbVie and agribusiness giant Archer Daniels Midland, has asked state regulators to overturn a Commonwealth Edison surcharge that they say is collectively costing them more than $100 million. Those credits, which turned out to be wildly and overly generous, were tied to payments under the 2021 clean-energy law that nuclear power generator Constellation Energy Group made to ComEd under provisions to bail out three nukes in Illinois. [Extracted from the article]