Fuel Mix and Emissions Disclosure

August 10, 2023


As part of the state's 1997 electric utility restructuring legislation, Illinois established provisions for the disclosure of fuel mix and emissions data. All electric utilities and alternative retail electric suppliers must provide details of their fuel mix and emissions to customers within bills on a quarterly basis. This information is also posted to the Illinois Commerce Commission's website.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Illinois
Incentive Type: Generation Disclosure
Web Site: https://www.icc.illinois.gov/industry-reports/environmental-disclosure
Start Date:
Eligible Renewable/Other Technologies:
Fuel Mix: Must be disclosed
Emissions: Must be disclosed
Distribution and Frequency: Distributed to customers quarterly
Standard Format Required: Yes


Name: 220 ILCS 5/16-127
Date Enacted: 12/16/1997 (subsequently amended)
Effective Date: 1/1/1999
Name: 83 Ill. Adm. Code 421
Effective Date: 12/15/1998


Name: General Customer Contact
Organization: Illinois Commerce Commission
Address: 527 East Capitol
Springfield IL 62794-9280
Phone: (180) 052-4079

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.