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Illinois Commerce Commission adopts edits to Ameren rate design, rejects mandatory peak usage charge
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Summary
The Illinois Commerce Commission adopted edits to Amerens revenue-neutral rate design, approving a sliding-scale low-income option for Rider ESDA, directing compliance timelines and rejecting a mandatory residential peak usage charge while asking Ameren to propose DTOU and education plans.
The Illinois Commerce Commission on Aug. 7 adopted substantive edits to Amerens revenue-neutral rate design in Docket 25-0083, including a low-income sliding-scale option for Rider ESDA and a directive that staff and the company file implementation and compliance materials on a set schedule.
The edits, moved by Mr. Scott (the chairman) and seconded by Commissioner Paradis, adopt Amerens Option 2 low-income proposal, described by the Commission as a "sliding scale PIPP-like program" designed to achieve a maximum 3 percent or 6 percent energy burden for low-income customers. The Commission also rejected Amerens proposed mandatory demand-based peak usage charge for residential and small commercial customers.
Why it matters: The adopted low-income structure and reporting requirements are aimed at balancing customer affordability and program goals under Public Act 102-0662 and related statutory provisions cited in the record. The Commissions actions set deadlines intended to accelerate compliance while preserving consumer protections, and they steer Ameren toward voluntary time-differentiated or volumetric approaches rather than a mandatory demand charge.
Key actions and timelines adopted by the Commission include: the adoption of Option 2 for Rider ESDA; a requirement that staff file a report with the Commission no later than one year from the final order; a directive that Ameren submit a compliance filing within 60 days detailing efforts to mitigate BE plan costs for low-income customers distinct from residential customers as a whole; and an implementation date for Rider ESDA of June 1, 2026, with an implementation report due within 90 days of the final order. The Commission also directed Ameren to engage stakeholders and file a "strawman" proposal for a DTOU or bundled rate (including a customer education and communications plan) within 180 days.
Commission discussion and disposition: The transcript shows Mr. Scott moved "the edits" and Commissioner Paradis seconded; Mr. Scott asked for objections and, hearing none, the edits and the order as edited were approved by unanimous consent. The record reflects that staff will be asked to investigate allocation of supply and delivery costs and to provide additional reporting as requested in the edits.
Public comment and context: Earlier in the meeting, Christiane Rey of Third Act Illinois urged the Commission to direct ComEd to employ renewable energy in planning and to account for affordability and environmental justice, saying the Commission should "consider Illinois residents like Mrs. K" who cannot afford to run air conditioning. That public comment occurred during the public comment period and does not form part of the evidentiary record of Docket 25-0083 but provides context for public concern about affordability and clean-energy planning.
What the order does not do: The Commission declined to adopt Amerens proposed mandatory demand-based peak usage charge as presented and rejected certain proposed changes to Rider EVCP and distribution delivery charges tied to that proposal. The Commission did not adopt numeric vote tallies in the transcript; approval was recorded by unanimous voice/consent with no objections noted.
Next steps: Staff must file the required report within one year and Ameren must make the compliance filing and subsequent implementation filings according to the deadlines above. The Commission also directed further stakeholder engagement on DTOU structures and customer education.