Integrated Resource Plan (IRP) Informal Processes Integrated Resource Plan (IRP) An integrated resource plan (IRP) is a roadmap for meeting forecasted electricity demand. New Illinois law tasks the Illinois Commerce Commission (ICC) Staff, the Illinois Power Agency, the Illinois Finance Authority, and the Illinois Environmental Protection Agency (collectively, the Agencies) with proposing an IRP that is likely to serve Illinois customers in a manner that is adequate, safe, reliable, affordable, efficient, environmentally sustainable, at the lowest cost over time, and consistent with the energy policy goals of the State. The IRP process provides regulators and stakeholders with information on power demand, reliability, resource adequacy, costs, risks, and other important factors affecting Illinois utility customers. Workshops February 18, 2026 Workshop (In-Person) 1-3 pm, ICC Main Hearing Room located at 160 N. La Salle, 8th floor, Chicago, IL Workshop Agenda and Presentations Workshop Recording Agenda Presentation - Jim Zolnierek Presentation - Scott Metzger Presentation - Tim Hermann Presentation - Nicole Luckey April 7, 2026 Workshop (Virtual) 11 am – 1 pm. CT (Registration is required to attend this virtual workshop) April 7 Workshop Presentation April 7 Workshop Recording This combined IRP and Mitigation Plan virtual workshop will focus on scenario design. An overview of stakeholder feedback received during prior ICC and IPA workshops will be provided as well as draft recommendations for scenario topics and key drivers for modeling purposes. Stakeholders will be invited to provide input on the proposed recommendations. Workshop materials are expected to be released approximately one week in advance, with a follow-up communication issued once materials are available. April 10, 2026 Workshop (Virtual) 11 am – 1 pm. CT (Registration is required to attend this virtual workshop.) April 10 Workshop Presentation April 10 Workshop Recording Illinois Resource Cost Workbook (Assumptions Workbook) This combined IRP and Mitigation Plan virtual workshop will focus on proposed updates to the candidate resource types to be used, including Distributed Energy Resources (DERs) and Virtual Power Plant (VPP) definitions. Stakeholder feedback on the proposals, along with supporting data and modeling assumptions (e.g., VPP modeling), including development timelines and cost assumptions for emerging technologies will be invited. Workshop materials are expected to be released approximately one week in advance, with a follow-up communication issued once materials are available. Request for Comments When preparing your responses for submission, please ensure they meet accessibility requirements as outlined in the Accessibility Guides , pursuant to the Illinois Information Technology Accessibility Act . The Accessibility Guides include links to guides for various file types. The most commonly submitted files are Word documents (see Word Accessibility ) and Excel spreadsheets (see Excel Accessibility ). Request for Comments #1 Due on February 9, 2026 Parties who want to reply to any or all of the 21 responses received to the first Request for Comments, are invited to do so by March 16. Please email your reply comments to june.poon@illinois.gov . All reply comments will be posted to this web page Responses Advanced Energy Response Ameren Illinois Response American Council for an Energy Efficient Economy Response Clean Grid Alliance Response Climate Jobs Illinois Response ComEd Response Constellation Energy Generation Response Earthrise Energy Response Form Energy Response Illinois Clean Jobs Coalition Response Illinois Farm Bureau Response Illinois Industrial Energy Consumers Response Illinois Manufacturers’ Association Response Invenergy Response Midwest Energy Efficiency Alliance Response Nicor Gas Responses Peoples Gas & North Shore Gas Response REACT Response SOO Green HVDC Response Vistra Corp Response Zenobe Response Reply Comments Ameren Illinois Comments Clean Grid AllianceComments Illinois Clean Jobs Coalition (ICJC) Comments Illinois Industrial Energy Consumers (IIEC) Comments Invenergy Comments Oracle Comments REACT Comments SOO Green HVDC Link Comments Get Involved Stay up to date with the IRP process by joining our distribution list: Join The Distribution List Background The Clean and Reliable Grid Affordability Act (CRGA, Public Act 104-0458 ) was enacted on January 8, 2026, and will be effective June 1, 2026. CRGA amends the Illinois Public Utilities Act (220 ILCS 5) to include, among other things, Sections 16-201 and 16-202, which pertain to IRPs that will “plan for sufficient electricity resources to serve Illinois customers in a manner that is adequate, safe, reliable, affordable, efficient, environmentally sustainable, at the lowest cost over time, and consistent with the energy policy goals of the State, including, but not limited to, the clean energy policy established by Public Act 102-0662.” The Agencies, coordinated by ICC Staff, are required to propose an IRP, the first of which is due to the ICC on November 15, 2026. The second IRP report will be due September 30, 2029, with subsequent reports every four years thereafter. The ICC has 180 days from the IRP report submission to approve the IRP, with or without modification. If needed, the ICC may extend the IRP approval process by an additional 180 days. To access materials from prior related engagements, the following links are provided below: Resource Adequacy Study Renewable Energy Access Plan