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SHOCK: Filing Shows Residential, Small C&I ComEd Default Service Rate Will Nearly Double In May, With Increase Of 8¢/kWh!
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Commonwealth Edison has filed with the Illinois Commerce Commission a monthly update to the bypassable Purchased Electricity Adjustment Factor (PEA), which serves as a reconciliation factor for electricity default service and which, although bypassable, is not part of the official price to compare
Per an informational sheet tariff filing from ComEd, the PEA for non-hourly default service customers (such as residential and small C&I) will be a charge of 8.166 cents per kWh for the May 2026 Monthly Billing Period.
EnergyChoiceMatters.com stresses that the reporting of the value for the May 2026 PEA reflects the tariff as filed by ComEd with the Illinois Commerce Commission and is taken as facially correct.
An 8.166 cents per kWh PEA, in any direction, would be about 4 times higher than the historically largest PEA adjustment at ComEd (an Ameren PEA had been a 5 cent per kWh credit for one month)
Currently, the ComEd non-hourly PEA is 1.159 cents per kWh
The current ComEd residential price to compare is 9.660 cents per kWh. As noted above, the bypassable PEA is not included in the price to compare
The PEA is typically adjusted monthly.
The ComEd PEA had formerly been subject to a limit of 0.5 cents per kWh in either a charge or credit to customers, but such limit does not appear to still apply. In the past year, PEAs have been as high as approximately 2 cents per kWh. ComEd in a June 2023 tariff filing had stated that the 0.5 cents per kWh PEA limit was being removed due to Illinois Power Agency procurement changes
The impact of the PEA has generally been said to be offset by ComEd's Rider Carbon-Free Resource Adjustment (CFRA) given the nature of ComEd's hedging and wholesale prices which impact both the PEA and CFRA in generally opposite directions; however, Rider CFRA (which is generally a credit) applies to all customers, while the PEA is only charged to default service customers
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April 16, 2026
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Copyright 2026 EnergyChoiceMatters.com
Reporting by Paul Ring • ring@energychoicematters.com
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