The Illinois Commerce Commission has approved Ameren Illinois’ modified multi-year grid plan, authorizing $83 million in system enhancements to improve power grid reliability and support clean energy goals. This decision represents a significant reduction from the initially proposed $333 million, aligning with the Climate and Equitable Jobs Act mandates for cost-effectiveness and consumer affordability. Ameren’s grid plan is consolidated with its multi-year rate plan (2024-2027) to determine which system maintenance and upgrade costs can be passed on to ratepayers “at a reasonable cost.” In accordance with the Public Utilities Act, these costs are only recoverable if the utility demonstrates they are reasonable and prudent.
“After extensive review, the Commission is confident that both Ameren and ComEd have the tools necessary to make needed investments to drive the clean energy transition and continue modernizing Illinois’ electric grid. These plans are a key component to meeting the goals of CEJA and represent significant improvement in meeting its requirements,” said ICC Chairman Doug Scott. “The investments approved today will deliver significant benefits to the utilities’ customers in an affordable, cost-effective manner.”
“Grid planning is not a one-time task. It is a dynamic, iterative process that will require continued refinement and adaptation in future grid plans,” said ICC Commissioner Stacey Paradis. “The grid of the future will be shaped by emerging technologies, evolving regulatory review, and changing energy demands. To meet these challenges, the utilities, ICC staff, advocacy groups, and other stakeholders must continue to work together.”