ComEd says the increase is needed “to sustain improvements in reliability for residential and commercial customers and support the transition to 100% clean energy.”

The rate hike would be the largest in eight years.

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State regulators in December 2021 approved the second of two rate hikes for ComEd that together added $100 million to customer bills, Crain’s reported, with nonresidential customers paying $70 million of the total in rate hikes that took effect this year.

Formula rates will expire after 2022—the last in which ComEd will retain the authority under a law enacted in 2011.

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