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🦅 Illinois Solar Panel Calculator 2025

Illinois has a generous net metering policy and strong solar incentive programs statewide.

$
$20$800+

Avg rate: $0.155/kWh · 4.8 peak sun hrs/day

Your Solar Estimate for Illinois

8.3 kW

System Size

recommended

9.3 yrs

Payback Period

break-even

$48,807

25-Year Savings

net profit

4.5t

CO₂ Offset

per year

Estimated installation cost$24,028
US Federal Tax Credit (30% IRA)− $7,208
Net cost to you$16,819
Annual electricity savings$1,800/yr

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Illinois Solar Facts (2025)

$0.155/kWh

Avg Electricity Rate

4.8 hours

Daily Peak Sun Hours

30% Federal Tax Credit (IRA)

Federal Incentive

Net Metering in Illinois

Illinois offers full net metering — you receive full retail credit for excess solar energy sent back to the grid. This maximizes your savings and shortens your payback period.

Frequently Asked Questions

Is solar worth it in Illinois?+
Illinois has a generous net metering policy and strong solar incentive programs statewide. With a payback period calculated from local rates of $0.155/kWh and 4.8 peak sun hours per day, solar can be a strong investment in Illinois.
What is the solar tax credit in Illinois for 2025?+
Illinois homeowners qualify for the federal 30% Investment Tax Credit (ITC) under the Inflation Reduction Act, valid through 2032. This means 30% of your total installation cost is deducted directly from your federal tax bill.
How long does solar take to pay back in Illinois?+
Payback period in Illinois depends on your monthly electricity bill, roof orientation, and system size. Use the calculator above with your actual monthly bill to get a personalized estimate based on local rates of $0.155/kWh.

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