Electricity rates by utility · Illinois
ComEd commercial electricity rates, from the filed tariff
Commonwealth Edison Company
An independent summary by DEKALOS of Commonwealth Edison Company's filed rate schedules. DEKALOS is not affiliated with or endorsed by Commonwealth Edison Company.
Service area: Chicago and northern Illinois (ComEd service area). Prices last checked against the utility’s filed tariff on September 24, 2026.
Your schedule: Small Load Medium Load
These are the base charges in ComEd's commercial rate schedules that DEKALOS covers, from what Commonwealth Edison Company filed with its state regulator: the fixed charge, the demand charge and the energy charge, each with the date it took effect and the sheet it comes from. Where a sheet splits one charge into parts, the price here is their sum. The schedule on a bill is printed near the meter readings, as the rate, the rate schedule or the service classification.
Small Load — Small Load Delivery Class, secondary voltage
| Charge | Applies to | Price with adjustment factors applied |
|---|---|---|
| Customer and metering charges | Each month | $21.77 a month |
| Distribution facilities charge | Every kW of billing demand | $12.907425 a kW |
| Energy charge | Every kWh | $0.001176 a kWh |
These factors apply to September through December 2026 bills; ComEd resets them after that.
Medium Load — Medium Load Delivery Class, secondary voltage
| Charge | Applies to | Price with adjustment factors applied |
|---|---|---|
| Customer and metering charges | Each month | $36.54 a month |
| Distribution facilities charge | Every kW of billing demand | $13.000635 a kW |
| Energy charge | Every kWh | $0.001157 a kWh |
These factors apply to September through December 2026 bills; ComEd resets them after that.
What these prices leave out
These prices are DEKALOS's arithmetic: each base charge Commonwealth Edison Company filed, adjusted by the adjustment factors it filed (IDUFN, DRAF, EDAF, TPAF, RBAF and the DG Rebate Adjustment; the bill marks the adjusted lines "& ADJ"). A bill may print the base charge and the adjustment as separate lines. Other riders, surcharges, taxes and the supply of the electricity itself are not included, so they are not a bill’s total, and a gap between the two is not by itself a mistake.
In this state you can buy the electricity itself from a supplier of your choice, so ComEd's schedules price delivery only. The supply half of the bill is priced by your supplier's contract or the utility's default service, and is not on this page.
Price one month on your own schedule
Type the month’s kWh and billed kW from your bill, and the checker writes out that month’s base charges on your schedule, line by line. Nothing you type leaves the page.