If your ComEd bill seems higher than expected, you're not alone. Many northern Illinois residents experience bill shock, especially during extreme weather months. Understanding the components of your bill can help you identify what's driving the costs.
Chicago's extreme weather—hot humid summers and frigid winters—drives significant energy use. Air conditioning in summer and electric heating or heat pump usage in winter can double or triple your typical bill.
Delivery Charges
ComEd's delivery charges make up a significant portion of your bill. These include:
- Customer Charge: A fixed monthly fee (around $12-15)
- Distribution Charges: Based on your kWh usage
- Transmission Charges: For moving power across the grid
- Environmental Cost Recovery: For clean energy programs
Supply Charges
If you haven't chosen an alternative supplier, you're on ComEd's default supply rate. This rate fluctuates based on wholesale market prices and can vary significantly month to month.
Illinois is deregulated—you can shop for electricity supply on the Illinois Power Agency's website to potentially find better rates.
Rider Charges and Taxes
Illinois has various riders (surcharges) that appear on your bill:
- Energy Efficiency Programs
- Renewable Energy Standard
- Zero Emission Standard (nuclear plant support)
- Various state and local taxes
How to Lower Your ComEd Bill
- Compare Suppliers: Illinois is deregulated—shop for electricity supply on PlugInIllinois.org
- Enroll in Budget Billing: Spreads your annual costs evenly across 12 months
- Use ComEd's Hourly Pricing: If you can shift usage to off-peak hours, this program can save money
- Check for Rebates: ComEd offers rebates on efficient appliances, smart thermostats, and weatherization
- Review Your Rate: Make sure you're on the best rate for your usage pattern