Many Northern Illinois residents got sticker shock upon opening their ComEd electric bills for the month of June. A record heat wave and a rise in wholesale electricity prices drove up costs.

CHICAGO — Many Chicagoland residents will see a higher utility bill this summer. Customers of ComEd, the primary electric utility in Chicagoland and the largest in Illinois, will see an increase to ...

After a summer of sky-high electric bills, ComEd is offering Chicago customers some relief next year with $803 million in state-mandated nuclear energy credits and a new low-income discount program.

Commonwealth Edison's residential customers will get rebates averaging about $65 next year, which will help take some of the sting out of rising electricity bills.

Illinois regulators rejected millions of dollars in spending requests from ComEd and Ameren, citing wasteful expenses ...

ComEd once found its fate tied so crucially to the Illinois Legislature dominated by Michael J. Madigan that the utility’s CEO was known to declare bluntly, “What’s important to the Speaker is ...

When ComEd bungled the launch of a new computer billing system in February, it left millions of customers unable to see their balances or pay online for more than a week before it was ostensibly ...