This case does not change what a household pays today, but it is the main tool Illinois regulators are using to try to stop the cost of new grid equipment for data centers from landing on residential bills.
no figure yet
ComEd multi-year integrated grid plan, 2024-2027
Approved Base rate case, docket 24-0181 before the Illinois Commerce Commission.
No residential dollar figure published yet
The filing does not state a typical-bill impact we can verify. We will add one when the commission staff or the consumer advocate publishes it.
Fileddate not published
Hearingheld or waived
DecisionDec 19, 2024
On billsdate not published
The Illinois Commerce Commission approved ComEd's refiled four year plan for grid upgrades and reliability spending through 2027, worth a 606 million dollar rate increase over that period, about 11 percent less than ComEd requested. Regulators cut roughly 25 percent from the utility's proposed 2 billion dollars in spending. ComEd separately filed its next four year grid plan in January 2026, which is expected to address the newer surge of data center connection requests.
What it means for your bill: This is the base multi-year plan that sets the delivery portion of a ComEd household bill through 2027, separate from the newer data center specific tariff cases.
- Status
- Approved
- Utility
- Commonwealth Edison
- Commission
- Illinois Commerce Commission
- Docket
- 24-0181
- Decided
- December 19, 2024
- Last checked
- August 29, 2026
Sources
- CUB Statement on ComEd's Amended Grid Plan, Rate Hike, Citizens Utility Board, 2024-12-19
- $606M rate increase approved for ComEd's revised energy plan by state regulators. What does it mean for customers?, WGN-TV
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Other Commonwealth Edison matters
This is a routine annual true up of ComEd's delivery charges, not something tied to data centers, and it adds a few dollars a month to a typical bill.
+$3a month
This is the single biggest reason ComEd bills jumped in summer 2025 and again in 2026, and PJM and consumer groups both tie it directly to data center demand growth.
+$11a month