Peoples Gas filed a $202.3 million annual rate increase request in January 2026 to fund replacement of over 1,000 miles of aging iron gas mains in Chicago. Typical residential bills would rise $10–11/month if approved.

25-0213ElectricActiveUpdated Jan 1, 2025

ComEd Energy Efficiency Portfolio Plan 2026–2030

Docket No. 25-0213

Commonwealth Edison's energy efficiency program portfolio plan for 2026–2030, filed with the ICC in 2025 pursuant to the Climate and Equitable Jobs Act.

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State Intelligence

Updated Jun 1, 2026

Utility Landscape

Commonwealth Edison (ComEd)

IOU

Northern Illinois including Chicago metro and surrounding suburbs, approximately 4 million customers

Operates under a multiyear rate plan framework established by the Climate and Equitable Jobs Act (CEJA). Subject to ongoing ICC scrutiny following a federal bribery investigation involving parent Exelon; compliance and ethics conditions remain part of its regulatory posture.

Ameren Illinois

IOU

Central and southern Illinois, serving approximately 1.2 million electric and 815,000 natural gas customers

Actively pursuing grid modernization investments under its Modernization Action Plan (MAP) and formula rate structure. Filed a major electric rate case in 2025 seeking significant distribution infrastructure cost recovery amid rising capital expenditures.

Nicor Gas (Southern Company Gas)

IOU

Northern Illinois suburbs of Chicago, approximately 2.2 million natural gas customers

Filed a general rate case in 2024–2025 seeking recovery of pipeline safety and infrastructure replacement costs. Facing ICC scrutiny on gas supply planning amid state decarbonization goals under CEJA.

Peoples Gas (WEC Energy Group)

IOU

City of Chicago natural gas distribution, approximately 850,000 customers

Under sustained ICC oversight due to the controversial and cost-escalating Peoples Gas System Modernization Program (SMP), a multi-billion-dollar cast iron pipe replacement initiative with costs exceeding initial estimates by several billion dollars.

Illinois Rural Electric Cooperative (IREC) / Southwestern Electric Cooperative

coop

Rural southwestern and central Illinois counties not served by IOUs

Cooperatives in Illinois are largely self-regulated through their boards but interact with ICC on interconnection and siting matters; increasingly engaged in ICC proceedings related to renewable energy integration and distributed generation access rules.

City of Springfield (CWLP – City Water, Light and Power)

muni

City of Springfield and portions of Sangamon County, electric and water utility

As a municipal utility, CWLP is not subject to ICC retail rate regulation but participates in ICC proceedings on wholesale power, interconnection, and transmission policy. Navigating coal plant retirement timelines under state clean energy mandates.

Key Issues

—
Peoples Gas System Modernization Program (SMP) cost overruns: The ICC continues to evaluate cost prudency for the SMP, now projected to exceed $10 billion total, with ongoing proceedings examining ratepayer protection mechanisms, contractor oversight failures, and potential disallowances of imprudently incurred costs.
—
CEJA implementation and clean energy standard compliance: The ICC is administering rulemakings and proceedings to implement the Climate and Equitable Jobs Act's 100% clean energy by 2045 mandate, including the Illinois Solar for All expansion, clean energy jobs and workforce equity requirements, and utility carbon emissions reporting obligations.
—
ComEd multiyear rate plan (MYRP) performance metrics and grid investment reconciliation: The ICC is reviewing ComEd's performance under its CEJA-authorized multiyear rate plan, including reconciliation of actual versus projected grid modernization expenditures and whether performance incentive mechanisms are functioning as intended.
—
Ameren Illinois electric distribution rate case: Ameren's 2025 rate case filing seeking recovery of substantial distribution infrastructure and vegetation management investments is proceeding before the ICC, with intervenors challenging the prudency and rate impact of proposed capital additions.
—
Natural gas infrastructure transition and stranded asset risk: The ICC and stakeholders are engaged in proceedings examining long-term gas utility planning obligations, the risk of stranded pipeline assets as building electrification accelerates, and how to equitably allocate those costs under CEJA's decarbonization trajectory.

Upcoming

2026-07-15

Estimated deadline for ICC final order in Ameren Illinois electric distribution rate case (Docket No. 25-XXXX); order expected to set new base rates and address capital investment recovery — specific date estimated based on standard 11-month statutory clock from a mid-2025 filing.

2026-08-01

Estimated ICC evidentiary hearing sessions in Peoples Gas SMP prudency review; Staff and intervenor direct testimony filing deadlines expected in summer 2026 as the commission advances its multi-phase cost disallowance inquiry — date estimated.

2026-09-30

Estimated deadline for ICC annual report and reconciliation order under ComEd's multiyear rate plan, covering performance metric attainment and grid investment spend reconciliation for the prior plan year — date estimated based on CEJA statutory timelines.

2026-11-01

Estimated opening of ICC rulemaking comment period on updated Illinois Solar for All and Community Solar program rules, as part of ongoing CEJA implementation; ICC has indicated intent to finalize updated program parameters before end of 2026 — date estimated.

Commissioner Watch

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Feb 26, 2025Reappointment

Doug ScottChair

The Illinois Senate confirmed Doug Scott to a new five-year term as ICC Chairman on February 26, 2025, following his reappointment by Gov. Pritzker in January 2024.

Full Commissioner Watch ↗

Staff

129

Name	Title	Phone
Jim Agnew	Director, Consumer Services Division	(312) 814-2850
Bill Atwood	—	(312) 814-2850
Torsten Clausen	Director of Policy	(312) 814-2850
Natalia Delgado	General Counsel	(312) 773-6063
Matthew L. Harvey	Senior Trial Attorney	(312) 814-2850
Michelle Kelm	Director of Governmental Affairs	(312) 814-2850
Phillip Kosanovich	Ethics Officer and Director, Office of Ethics & Accountability	(708) 380-6888
Eric Lounsberry	Directory of Safety	(312) 814-2850
Sam McClerren	Rate Analyst	(312) 814-2850
Joy Nicdao-Cuyugan	Director of Utility Research & Analytics	(217) 785-8861
Katie Papadimitriu	Deputy Executive Director - Policy	(312) 814-2850
Bill Riley	Manager in Charge Pipeline Safety	(312) 814-2850

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