Illinoisans can expect a summer electricity price spike according to a report from the power grid operator for most of Illinois, Midcontinent Independent System Operator (MISO). State Representative Dan Swanson is reporting the report looked at the price levels charged by peak-load electrical generation suppliers which supply electricity online during times of peak summer demand.
Ameren, which is the largest utility supplying power to many parts of central Illinois, warned customers that it expects to pay about 50% more this summer for electricity, with costs going from 8 cents per kilowatt hour up to 12 cents. As these costs are passed along, the average summer 2025 consumer electric bill will be somewhere between 18% and 22% higher than last year. The price hike will apply to the four-month period from June 1 until September 30.
With the end of the summer peak-demand period on October 1, the price structure from MISO will expire and the billing surcharges may be partly reduced.
