Electric

Electric
Authority
Electric
The ICC currently regulates four investor-owned public utilities that provide electric distribution service:
Ameren Illinois Company
(Ameren IL),
Commonwealth Edison Company
(ComEd),
MidAmerican Energy Company
(MEC), and
Mt. Carmel Public Utility Company
The ICC is also responsible for overseeing the siting of electric transmission lines, which includes reviewing applications for and issuing Certificates of Public Convenience and Necessity under
Section 8-406
of the Public Utilities Act. As part of this process, the ICC may also consider and approve requests for eminent domain authority when necessary to obtain rights-of-way for approved transmission routes.
Additionally, the ICC certifies and licenses the following:
Alternative Retail Electric Suppliers
(ARES)
Agents, Brokers, and Consultants
- involved in retail electric service
Installers of Distributed Generation
Installers of Energy Efficiency Measures
Installers of Utility-Scale Solar Projects
Installers of Electric Vehicle Charging Stations
Electric service is composed of three parts:
SUPPLY
- the electricity generated by a power plant.
TRANSMISSION
– the conveyance of electricity over high voltage lines from the power plant to your local public utility.
DISTRIBUTION
– the delivery of electricity over electric lines from your local public utility to the customer’s location.
Electric customers of Ameren IL, ComEd and MEC can choose who provides their electric supply: their electric public utility or an ARES. For more information, go to
Plug In Illinois: Power of Choice
Electric customers can also choose a certified meter service provider other than their local public utility. For more information, go to
Meter Service Provider
List of Certified Electric
Certified Electric
Notice of Inquiry
26-NOI-01
Notice of Inquiry regarding the potential development, expansion, and uprates of nuclear generation facilities in Illinois, issued pursuant to Executive Order 2026-01 to gather information necessary to inform the evaluation of such resources in relation to Illinois’ resource adequacy, reliability, and affordability goals.
Notice of Inquiry Date: April 9, 2026
List All Notice of Inquiries
Programs and Initiatives
Climate and Equitable Jobs Act Implementation
Electric Utility Emergency Response Plan
Electricity Procurement Process
ICC Comments to FERC
Illinois Statewide Technical Reference Manual for Energy Efficiency
Initiative on Plug-In Electric Vehicles
Interconnection Working Group
Office of Diversity and Community Affairs
Office of Retail Market Development
One-Call Enforcement
Post 2006 Initiative
Potential Nuclear Plant Closing in Illinois
Real Time Pricing
Tenaska Clean Coal Facility Analysis
The University of Chicago | Harris Public Policy | Policy Labs: Carbon Pricing in Illinois
Uniform System of Accounts
List All Programs and Initiatives
Rulemakings
2025 Carbon Capture and Sequestration Rulemaking Workshops
2020 Code Parts 466 and 467 Electric Interconnection of Distributed Generation Workshops
2013-2014 Net Metering Rulemaking
List All Rulemakings
Informal Processes
Consumer Intervenor Compensation Fund
Supply Delivery Cost Allocation
2026 Integrated Resource Plan (IRP)
2026 Illinois Line Extension
2025 Virtual Power Plant & Community Solar Storage Workshops - ComEd
2025 Supply and Delivery Cost Allocation Workshops
2025 Solution Sourcing Opportunities Workshop
2025 Resource Adequacy Workshops
2025 Resource Adequacy Study
2025 Renewable Energy Access Plan (REAP)
2025 Performance Metrics and Grid Plan Workshops
2025 Energy Storage Procurement Workshops
2025 Customer Data Access Workshops
2023-2024 Thermal Energy Network Workshops
2022-2023 Equitable Energy Upgrade Program Workshops
2022 Low-Income Discount Rates (Electric & Gas) Customers
2021-2022 Multi-Year Integrated Grid Plan Workshops
2021-2022 Energy Storage Program Workshops
2021-2022 Beneficial Electrification Workshops
2021 Residential Customer-Owned Overhead Primaries Workshop – ComEd Customers
2020 Distributed Generation Rebate Value Workshops - Ameren IL Customers
2018 Distributed Generation Valuation and Compensation Workshops
2017-2018 MISO Zone 4 Workshops
2017 Ameren IL Energy Savings Goal Workshops
2016 eTariff Electronic Filing System Workshops
2013-2014 Energy Efficiency Workshops
2012 and 2014 Energy Efficiency Coordination
2008 Energy Efficiency Workshops
2007 General Account Agency (EDI) Workshop
2005 Retail Competition Workshop
List All Informal Processes
Forms
External User Account Request Form
Neutral Fact Finder Hourly Pricing Data Forms
Form 21 ILCC - Annual Report of Electric Utilities Licensees and/or Natural Gas Utilities
Gross Revenue Tax Return for Public Utilities and Rail Carriers
U-1 Accident Report Form
U-2 Accident Report Form
U-3 Accident Report Form
List All ICC Forms
Industry Reports
Bi-Annual Reports on IIJA and IRA
Credit, Collections, and Arrearages Reports
Electric Reliability
Electric Switching Statistics
Environmental Disclosure Statements
Environmental Disclosure Statements Archive
Future Energy Rate Impact Reports
Infrastructure Investment Plans
List All Industry Reports
Reporting Requirements
NOTICE: The information on this page is provided only as a convenience to the reader and does not necessarily represent the full extent of a company's reporting obligations under the relevant statutes and rules. It is the responsibility of the service provider to determine and comply with the applicable reporting requirements.
Report
Electric
Annual Reports
Due: Annually March 31st
83 Ill. Adm. Code 210.30
220 ILCS 5/5-109
83 Ill. Adm. Code 210.30 Check List
Form 21 ILCC - Annual Report of Electric Utilities Licensees and/or Natural Gas Utilities
Form 22 ILCC - Annual Report of Water and/or Sewer Utilities
Form 23A - Annual Report - Incumbents
Form AR-13 - Annual Report of Certain Telecommunications Carriers
View Filings
Designated Agent Report - Annual Filing
Due: Annually after January 1 and before January 31st
83 Ill. Adm. Code 215.10(a)
83 Ill. Adm. Code 215 Instructions
Designated Agent Report
Due: 15 days after any change to the DA
83 Ill. Adm. Code 215.50
83 Ill. Adm. Code 215 Instructions
Accident Reporting
Due: Occurrence Based
83 Ill. Adm. Code 220.10
83 Ill. Adm. Code 220.20
U-1 Accident Report Form
U-2 Accident Report Form
U-3 Accident Report Form
Report of Issuance and Sale or Disposal of Securities and Application of Proceeds
Due: Quarterly until company’s Final Report is issued
83 Ill. Adm. Code 240
Reporting of suspected violations of Damage Prevention Act
Due: Within 45 days of occurrence
83 Ill. Adm. Code 265.100(b)
Implementation Plan
Due: January 1st, 2015, and every 120 days after initial approval
83 Ill. Adm. Code 280.15
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Disconnection Implementation Plan
(4)
Due: December 1st
83 Ill. Adm. Code 280.135(j)
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Winter Reconnection Data
Due: November 20th and May 20th
83 Ill. Adm. Code 280.180(h)
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Public Utility Electronic Tariff Filing
Due: Occurrence Based
83 Ill. Adm. Code 290.70
Code Part 290 Instructions
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Informational Packets(Right-of-Way Acquisitions)
Due: Prior to Contact with Landowner
83 Ill. Adm. Code 300.20
Money Pool Agreements
(3)
Due: Quarterly
83 Ill. Adm. Code 340.60
Call Center Information Reports
Due: Annually, March 1st
83 Ill. Adm. Code 410.45(c)
220 ILCS 5/16-123
Electric Utilities must report on sampling plan used and meter sample testing results
Due: Annually, March 31st
83 Ill. Adm. Code 410.180(e)
Electric Reliability
Due: Annually, Before June 1st
83 Ill. Adm. Code 411.120(b)
83 Ill. Adm. Code 411.210(b)
Electric Reliability
View Filings
Biennial Internal Audits - Electric
Due: Annually, December 1st, even years
83 Ill. Adm. Code 416.30
Premature Destruction or Loss of Records
(8)
Due: Occurrence Based
83 Ill. Adm. Code 420.70
Environmental Disclosure
Due: Quarterly
83 Ill. Adm. Code 421.30(c)
Login to File
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Fuel Adjustment Clause – Reconciliation statement
Due: Monthly and Annually
83 Ill. Adm. Code 425.50
Revised Standard Energy Rates
Due: Annually, June 30
83 Ill. Adm. Code 430.110(a)
Qualified Solid Waste
Due: Annually
83 Ill. Adm. Code 445.50
Lists of Affiliated Interests and ARES
Due: Occurrence Based
83 Ill. Adm. Code 450.130(b)
Biennial Internal Audits - Electric
Due: By December 1st of succeeding even numbered years
83 Ill. Adm. Code 452.135(c)
Net Metering Report
Due: Annually, April 1st
83 Ill. Adm. Code 465.40
File Electronically
View Filings
Electric Interconnection of Distributed Generation Facilities
Due: Annually
83 Ill. Adm. Code 466.140(b)
Electric Interconnection of Large Distributed Generation Facilities
Due: Annually
83 Ill. Adm. Code 467.90(b)
Interruptions of Service Report
Due: Annually, April 1st
83 Ill. Adm. Code 501.520(b)
Public Utilities Fund Tax (PUF Tax) (Annual Gross Revenue Tax Return)
Due: Annually by March 31st
220 ILCS 5/2-202
Gross Revenue Tax Return for Public Utilities and Rail Carriers
Annual Security Policy Affidavit
Due: Annually
220 ILCS 5/4-101
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Creation of Chief Ethics and Compliance Officer
Due: Once - Please use the Designated Agent form to update the Chief Ethics and Compliance Officer
220 ILCS 5/4-604(d)(1)
Annual Ethics and Compliance Report
Due: Annually, May 1st
220 ILCS 5/4-604(f)
Credit, Collections and Arrearages Annual Reporting
Due: Annually May 1st
220 ILCS 5/8-201.10 (a)
Instructions for 220 ILCS 5/8-201.10
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Credit, Collections, and Arrearages Monthly Reporting
Due: Monthly - 15th each month beginning October 15, 2021
220 ILCS 5/8-201.10 (b)
Instructions for 220 ILCS 5/8-201.10
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Performance Metrics
(10)
Due: Annually
220 ILCS 5/16-108.5(f-5)
Electric Infrastructure Investment Plans
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Infrastructure Investment Plan
(10)
Due: Annually, April 1st
220 ILCS 5/16-108.5(b)(2)
Electric Infrastructure Investment Plans
View Filings - Infrastructure Investment Plan
View Filings - Jobs Creation
Jobs Creation
(10)
Due: Quarterly
220 ILCS 5/16-108.5(b)(2)
Electric Infrastructure Investment Plans
View Filings - Infrastructure Investment Plan
View Filings - Jobs Creation
EIMA Customer Assistance Reports
(10)
Due: Annually
220 ILCS 5/16-108.5(b-10)
View Filings
Advanced Metering Infrastructure ("AMI")
(10)
Due: Annually
220 ILCS 5/16-108.6(e)
Ameren - Advanced Metering Infrastructure
ComEd - Advanced Metering Infrastructure
View Filings
Test Bed
(10)
Due: Quarterly
220 ILCS 5/16-108.8(i)
Electric Infrastructure Investment Plans
Large Commercial Rate Impact Report
(12)
Due: Annually, Before April 30th
220 ILCS 5/16-108(m)(1)
View Filings
Residential Rate Impact Report
(11)
Due: Annually, February 15
220 ILCS 5/16-108.15
Future Energy Rate Impact Reports
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Commercial Rate Impact Report
(11)
Due: Annually, Before June 30th
220 ILCS 5/16-108.16
Future Energy Rate Impact Reports
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Annual Non-Utility Supplier Diversity Reports
Due: Annually June 1st
220 ILCS 5/16-111.11
2025 Supplier Diversity Report Form
Instructions
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Electric Switching Statistics
Due: Monthly
ICC 03-0303
Electric Switching Statistics
(3)
Only required for Utilities that serve more than 100,000 customers.
(4)
A utility that has a plan on file with the Commission need not resubmit a new plan each year. However, any alteration of the plan on file must be submitted prior to December 1 of any year.
(8)
Certified statement filed within 90 - days from the date of discovery of destruction indicating the records that were destroyed and the circumstances of such destruction.
(10)
Required for electric utilities serving more than 1,000,000 customers that are participating utilities, making infrastructure investment and other commitments, pursuant to Section 16-108.5 of the Illinois Public Utilities Act.
(11)
Applicable to electric utilities that serve more than 500,000 retail customers in Illinois.
(12)
Applicable to electric utilities that recover costs of procuring zero emission credits through a cents-per-kilowatt hour charge and that have customers exempt from the energy efficiency provisions of 220 ILCS 5/8-103B.
NOTICE: The information on this page is provided only as a convenience to the reader and does not necessarily represent the full extent of a company's reporting obligations under the relevant statutes and rules. It is the responsibility of the service provider to determine and comply with the applicable reporting requirements.
ICC Reports
Ameren IL Wind and Ice Storm Preparedness and Restoration Investigation
Analysis of Electric Utilities' Workforce: Staffing and Training Benchmarks
[220 ILCS 5/4-602(a)]
Annual Report Office of Retail Market Development
[220 ILCS 5/20-110]
Annual Report on Electric, Gas, and Water Sewer Utilities
[220 ILCS 5/4-304]
Arbitrators
[83 Ill. Adm. Code 202.220(e)]
Comparison of Electric Sales Statistics
Competition in the Illinois Retail Electric Markets
[220 ILCS 5/16-120(b)]
Consumer Services Annual Report
Coordination Between Gas and Electric Utility Energy Efficiency Programs
[220 ILCS 5/8-104(k)]
Electric Residential Bills Study - Ameren IL and ComEd, 2007-2024
Energy Infrastructure Modernization Act Report Dec 2017
[220 ILCS 5/16-108.5(h)]
Energy Storage Procurement Report
[220 ILCS 5/16-135(g)]
Energy Storage Program Report
[220 ILCS 5/16-135(d)]
Experimental Programs Initiated By Electric Utilities Under Section 16-106
[220 ILCS 5/16-106]
HJR 59 Cybersecurity Task Force
ICC Analysis of the Taylorville Energy Center Facility Cost Report
[220 ILCS 3855/1-75(d)(4)(ii)]
ICC Staff Report on Utility Customer Disconnections, Credit, and Collections: 2022 – 2023
[220 ILCS 5/8-201.10(b)]
ICC Staff Report on Utility Customer Disconnections, Credit, and Collections: 2022 – 2024
Illinois Statewide Smart Grid Collaborative Report
[ICC Docket No. 07-0566 Order]
JULIE Enforcement Statistics
Low-Income Discount Rate Study Report
[220 ILCS 5/9-241]
MISO Zone 4 Resource Adequacy Report
Municipal Aggregation in Illinois
[220 ILCS 5/16-120(c)]
Nuclear Decommissioning Funding Assurance Status Reports
[220 ILCS 5/8-508.1(g)]
Office of Accountability and Ethics Annual Ethics Audits
[220 ILCS 5/4-604]
Potential Nuclear Plant Closings in Illinois
[House Resolution 1146 adopted May 29, 2014]
Rate Case History Report
Report and Recommendations Regarding On-Bill Financing Programs
[220 ILCS 5/16-111.7(g)]
[220 ILCS 5/19-140(g)]
Report to the General Assembly in Compliance with Section 1-75(d-5) of the Illinois Power Agency Act
[20 ILCS 3855/1-75(d-5)(F)(2)]
Resource Adequacy Study 2025
[415 ILCS 5/9.15(o)]
Results of MidAmerican Energy Efficiency Programs
[220 ILCS 5/8-408]
Retail and Wholesale Competition in Illinois Electric Industry
[220 ILCS 5/16-120(a)]
September 3, 2025 Staff Report
Spending Limits on Electricity Generated by Clean Coal Facilities
[220 ILCS 3855/1-75(d)(2)]
Spending Limits on Energy Efficiency and Demand-Response Measures
[220 ILCS 5/8-103(d)]
Spending Limits on Renewable Energy Resource Procurement
[220 ILCS 3855/1-75(c)]
Summary of Annual Reports Filed By Electric Utilities Regarding the Transition to a Competitive Electric Industry
[220 ILCS 5/16-130]
Supplier Diversity Annual Report
Thermal Energy Network - Final Report
[220 ILCS 5/4-610]
List All ICC Reports