Electric Rates

What Makes Up Your Electric Bill

Monthly Charges

Residential Electric Utility customers pay a monthly customer charge and a monthly energy usage charge per kilowatt hour (kWh). The monthly customer charge provides a stable revenue source to cover the utility's fixed costs, while energy charges are based on customers’ energy usage.

In addition to these charges, certain commercial customers also see a monthly demand charge on their bills.

2024 Rates

In 2021, the Electric Utility conducted a rate study to determine the appropriate amounts to charge through 2024 to cover the cost of operating the utility. All customer classes had a 0.5% increase in 2024.

As of January 2024, the average residential electric customer pays $107.83 per month, which is still 16% lower than ComEd’s residential rates.

Below is a table outlining current charges to the most common customer classes. Commercial customers are encouraged to utilize the averages provided to help calculate their bills, as bills can vary widely from one business to the next. Customers wanting more information specific to their business or organization are encouraged to contact Customer Connections Manager Maher Diab at (630) 420-4184.

Customer Class 2024 Rates
  Monthly Customer Charge Energy Charge (kWh) Demand Charge (kWd) Average Monthly Electric Bill

Average kWh = 844

$17.00 $0.10762 N/A $107.83
Small Commercial (GS1)
Average kWh = 1,865
$33.65 $0.10869 N/A $236.35

Large Commercial (GS2)
Average kWh = 2,500
Average kWd = 100

$90.00 $0.04582 $21.65 $2,369.55

Very Large Commercial (GS2)
Average kWh = 50,000
Average kWd = 225

$90.00 $0.04582 $21.65 $7,252.25

Extra Large Commercial (GS2)
Average kWh = 220,000
Average kWd = 750

$90.00 $0.04582 $21.65 $26,407.90

Purchased Power Adjustment 

The Purchased Power Adjustment (PPA) is a monthly adjustment on your electric bill based on actual power costs. The PPA changes monthly and is based on a six-month rolling average. During each utility rate study, the PPA baseline is adjusted to account for projected electricity costs so that the PPA is ultimately revenue neutral to the utility.

Please look at the graphic below to learn more about what a PPA means for your monthly electric bills. 

infographic describing how a purchased power adjustment may impact a utility bill