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2.9avg. commissioner years of serviceSource: AEE
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12.24¢avg. price per kWhSource: EIA
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12legislative session length, monthsSource: Legislative Session
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22%residential market share of the largest utilitySource: August 2022, AEE
breakdown of market shareUtility Percentage Market Share in Illinois
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Commonwealth Edison Co
Market Share22% -
Ameren Illinois Company
Market Share12%
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4governor years servedSource: August 2022, AEE
Utilities
Illinois Utilities
In most cases, we only provide profiles for the largest five utilities with more than 100,000 total customers.
Policy AreaMulti-Year Integrated Grid Plan
ScheduleEach electric utility shall, no later than January 20, 2023, submit its first Multi-Year Integrated Grid Plan. No later than January 20, 2026, and every 4 years thereafter, the utility shall submit its subsequent Plan.
Policy AreaEnergy Efficiency and Demand Response Plan
ScheduleUtilities must file 4-year energy efficiency plans by March 1st every four years, starting on March 1, 2021.
Source§ 220 ILCS 5/8-103
Policy AreaRenewable Resources Procurement Plan
ScheduleThe Illinois Power Agency must submit an annual procurement plan detailing renewable energy resources and credits used to achieve the renewable energy standard.
Ameren Illinois Company
Ownership TypeInvestor Owned
Balancing AuthorityMidcontinent Independent Transmission System Operator, Inc..
NERC Regional EntitySERC Reliability Corporation (SERC)
Holding Company
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in IL12%
Commonwealth Edison Co
Ownership TypeInvestor Owned
Balancing AuthorityPJM Interconnection, LLC
NERC Regional EntityReliabilityFirst Corporation (RFC)
Holding Company
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in IL22%