Illinois’ electric grid may face power shortages and rising prices in the coming years as fossil fuel plants retire and electricity demand surges, according to a new report released by three state agencies. The report, issued jointly by the Illinois Power Agency, Illinois Environmental Protection Agency and the Illinois Commerce Commission, warns that projected shortfalls could begin as early as 2029 in the Commonwealth Edison service territory in northern Illinois. Similar issues could follow by 2031 in the Ameren service area, which serves most of downstate Illinois.
State officials say the situation could worsen over time without action, increasing Illinois’ reliance on imported energy and placing additional strain on consumers.
According to the report, the challenges stem from a combination of accelerating electricity demand and shrinking generation capacity. Load growth is being driven largely by power-hungry data centers tied to artificial intelligence, along with increased transportation electrification and industrial expansion. At the same time, many coal, gas and oil-fired power plants are scheduled to retire due to age, economic pressures and emissions regulations. The findings are expected to influence an upcoming statewide grid planning process and could spark legislative debate over how — or whether — lawmakers should regulate large data centers and other major energy users.
The warning comes as electricity prices rose again recently during a procurement event affecting northern Illinois customers, underscoring concerns about reliability and affordability as demand continues to climb.