Solar System Sizing Tool — Illinois
Determine the right solar system size for your home in Illinois. With an average electricity rate of 17.5¢/kWh and 4.2 peak sun hours per day, homeowners here typically need a system tailored to local conditions. Select your city for a more precise recommendation.
17.5¢
Avg Rate / kWh
4.2h
Peak Sun Hours / Day
$145
Avg Monthly Bill
1,850
Avg Home Size (sq ft)
Select Your City in Illinois
Chicago
18¢/kWh · 4h sun/day
Avg bill: $148/mo · ComEd (Commonwealth Edison)
Aurora
17.5¢/kWh · 4.1h sun/day
Avg bill: $142/mo · ComEd (Commonwealth Edison)
Naperville
17.5¢/kWh · 4.1h sun/day
Avg bill: $155/mo · ComEd (Commonwealth Edison)
Rockford
17¢/kWh · 4h sun/day
Avg bill: $135/mo · ComEd (Commonwealth Edison)
Springfield
16.5¢/kWh · 4.2h sun/day
Avg bill: $138/mo · City Water, Light and Power
Peoria
17¢/kWh · 4.2h sun/day
Avg bill: $140/mo · Ameren Illinois
Joliet
17.5¢/kWh · 4.1h sun/day
Avg bill: $145/mo · ComEd (Commonwealth Edison)
Related Resources
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