Solar + battery installation in Illinois
Battery-coupled solar is the package that closes most often in Illinois. Federal Clean Tech ITC (30%) on storage stacks with state net metering. Free quote, ~2 minutes.
Get my free solar + battery quote- 7.5 kW
- Average system size
- $2.85/W
- Average cost (USD)
- 8 yrs
- Average payback
- 200+
- Local installers
Why solar in Illinois
Illinois homeowners are going solar to cut a rising ComEd or Ameren Illinois bill, and the state has one of the stronger solar incentive stacks in the Midwest. Illinois Shines (the Adjustable Block Program) lets Approved Vendors pass REC incentive payments on to you through reduced installation pricing, and both major utilities credit the power your panels send back through net metering. Note that the 30 percent federal residential tax credit (Section 25D) ended for systems placed in service after December 31, 2025, so most 2026 homeowner purchases cannot claim it; a lease or PPA may let the provider pass through part of the business credit. With an 8-year average payback and a large installer network across Chicago, the suburbs, and downstate markets, Illinois is one of the better places in the country to go solar. We are a matching service: describe your home and we connect you with vetted local installers who compete for your project, we do not install ourselves.
Incentives & rebates
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Federal solar tax credit (Section 25D, ended for 2026 purchases)
The 30 percent federal residential tax credit (Section 25D) applied through December 31, 2025 and is not available for a purchased home system placed in service after that date, so most 2026 homeowner purchases cannot claim it. If you go solar through a lease or a power purchase agreement, the provider may still claim the business version of the credit (Section 48E) and pass part of the value through in your rate. Confirm your eligibility with your installer and a tax advisor.
Illinois Shines (Adjustable Block Program)
Illinois Shines is the state-administered solar incentive program run by the Illinois Power Agency. Under the Distributed Generation track, Approved Vendors receive Renewable Energy Credit (REC) payments from utilities and may pass those savings on to homeowners through reduced equipment or installation costs. The program was expanded by the Climate and Equitable Jobs Act (2021), which created new capacity blocks and reopened the program. When shopping installers, ask each vendor for their Disclosure Form showing exactly how much of the Illinois Shines REC payment they are passing on to you. Participation requires using an Approved Vendor; your installer confirms current block availability and pricing at quote time.
Illinois Solar for All
Illinois Solar for All is a separate state program for income-eligible residents. Qualifying households receive solar through terms that guarantee their electricity costs are lower than they would have been without solar, either through on-site panels or community solar subscriptions. The program serves homeowners, renters (via community solar), and multifamily building owners. Eligibility is income-based; check the program website to see if your household qualifies before getting a quote.
Net metering: Net metering (ICC-regulated, ComEd and Ameren Illinois)
Illinois requires investor-owned utilities to offer net metering under Illinois Commerce Commission (ICC) rules. Excess power your panels send to the grid is credited against what you draw at other times. ComEd and Ameren Illinois are the two major providers serving most of the state. Illinois net metering rules have been subject to ongoing ICC proceedings as part of broader distributed generation policy updates, so credit rates and program terms can change. Your installer confirms the current net-metering tariff and any applicable charges for your utility before your project is quoted.
Why solar + battery in Illinois
Illinois homeowners are going solar to cut a rising ComEd or Ameren Illinois bill, and the state has one of the stronger solar incentive stacks in the Midwest. Illinois Shines (the Adjustable Block Program) lets Approved Vendors pass REC incentive payments on to you through reduced installation pricing, and both major utilities credit the power your panels send back through net metering. Note that the 30 percent federal residential tax credit (Section 25D) ended for systems placed in service after December 31, 2025, so most 2026 homeowner purchases cannot claim it; a lease or PPA may let the provider pass through part of the business credit. With an 8-year average payback and a large installer network across Chicago, the suburbs, and downstate markets, Illinois is one of the better places in the country to go solar. We are a matching service: describe your home and we connect you with vetted local installers who compete for your project, we do not install ourselves.
Start your Illinois quote
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How payback works in Illinois
- System cost
- $21,375
- After 30% federal tax credit
- $14,962
- Estimated payback
- ~9.2 years
- 25-year net savings
- ~$25,538
These figures are illustrative; your actual quote reflects your roof, sun exposure, and local utility rates.
Cities we serve in Illinois
9cities with vetted local solar + battery installers.
Frequently asked questions
How much do solar panels cost in Illinois?
A typical Illinois home solar system runs around $2.85 per watt installed, so a 7.5 kW system costs roughly $21,375 before incentives. Illinois Shines REC payments passed through by an Approved Vendor can reduce the effective cost depending on the installer and current block availability; ask any installer for their Disclosure Form showing how much they are passing on. The 30 percent federal residential tax credit (Section 25D) ended for systems placed in service after December 31, 2025, so most 2026 homeowner purchases cannot claim it. Your actual quote depends on roof type, shading, how much of the Shines payment the installer passes on, and your utility.
What solar incentives are available in Illinois?
Illinois has one of the stronger incentive stacks in the Midwest. Illinois Shines (the Adjustable Block Program) pays REC incentives to Approved Vendors, who can pass those savings on through reduced installation pricing; ask any installer for their Disclosure Form showing exactly how much they are passing on. Both ComEd and Ameren Illinois offer net metering under ICC rules, so excess generation offsets future bills. Income-eligible homeowners can also check Illinois Solar for All for additional savings guarantees. The 30 percent federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so most 2026 homeowner purchases cannot claim it; if you go solar through a lease or PPA the provider may still pass through part of the business credit. Confirm eligibility with your installer and a tax advisor.
Is solar worth it in Illinois?
For most Illinois homeowners, yes. A 7.5 kW system at current costs typically pays back in around 8 years, led by Illinois Shines savings passed through by the installer and ongoing net metering credits, then continues producing for 17 or more years after that. The Chicago area and downstate Illinois both get enough sun to make solar worthwhile, and the state has a large enough installer market that competition keeps pricing competitive. Pairing panels with a battery adds backup value if your area sees outages. We connect you with vetted installers who model your specific roof, utility rate, and usage so you see real numbers before committing.