Solar Savings Calculator for Illinois

Illinois homeowners pay an average of $145/month for electricity at 17.5¢/kWh. With 4.2 peak sun hours per day, solar can dramatically cut your energy costs.

$145
Avg Monthly Bill
17.5¢/kWh
Electricity Rate
4.2h/day
Peak Sun Hours
$47,031
Est. 25-Year Savings

Calculate Your Savings in Illinois

Adjust Your Details for Illinois

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$50$1,000
50010,000
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Your Estimated Solar Savings

System Size
6.8 kW
Panel Count
17 panels
Total System Cost
$19,380
Federal Tax Credit (30%)
-$5,814
Net Cost
$13,566
Annual Savings
$1,740
Payback Period
7.8 years
25-Year Savings
$47,031
Return on Investment
347%

* Estimates based on 4.2 peak sun hours/day in Illinois, system cost of $2.85/watt, 30% federal ITC, 3% annual electricity inflation, and 0.5% annual panel degradation over 25 years. Actual results may vary.

Solar Incentives in Illinois

Federal Solar Investment Tax Credit (ITC)

Reduces federal income tax liability by 30% of the total cost of a solar energy system, including equipment and installation.

30% of system cost

Illinois SREC (Adjustable Block Program)

Long-term contracts for Renewable Energy Credits through the Illinois Shines program.

$60-90 per REC (15-year contract)

Cities in Illinois

Select your city for a more precise estimate with local electricity rates and utility information.

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)

More Solar Resources for Illinois

Illinois Solar IncentivesTax credits, rebates, and SRECsIllinois Cost ComparisonSolar vs. grid costs over 25 yearsIllinois System SizingHow many panels your home needsIllinois Permits & RegulationsLocal permit requirements and HOA rulesIs Solar Worth It in Illinois?Data-driven analysis for your stateIllinois Financing OptionsCompare loans, leases, and PPAs
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