Illinois Net Metering and Solar Export Credits

What ComEd pays for exported solar

For a new rooftop system, ComEd credits exported energy at about 8.41¢ per kWh^[1], against an average Illinois residential price of 19.23¢^[2]. Every exported kWh earns this credit, which covers the supply part of the bill but not delivery charges.

Other Illinois utilities, co-ops and municipal utilities set their own rates; check your utility's current tariff.

State rules that apply

What it means for sizing and batteries

When exports earn much less than retail, each kWh you use at home as it is produced is worth more than one you export. Size to your daytime and evening use, shift loads (laundry, dishwasher, EV charging) to sunny hours or the plan's off-peak window, and price a battery against the gap between the retail and export rates.

The calculator uses the statewide rule until we add utility rates. See what solar costs in Illinois.