Commercial Solar in Illinois

Solar for businesses, schools, churches, and nonprofits. Reduce demand charges, lock in energy costs, and leverage commercial ITC and MACRS depreciation for maximum ROI. Specifically designed for Illinois homeowners with ComEd service and federal solar tax credit (30%).

$0.15/kWh

Avg. Rate

7–10 years (with Illinois Shines RECs)

Payback

4.0–4.8 peak sun hrs/day

Sun Hours

17+

Cities Served

Commercial Solar in Illinois: What You Need to Know

Incentives & Rebates

Illinois offers Federal Solar Tax Credit (30%), Illinois Shines (Adjustable Block Program), utility smart inverter rebates. The 30% federal solar tax credit applies to all eligible solar and battery storage installations in Illinois, significantly reducing your net investment.

Utility & Net Metering

Illinois is served by ComEd, Ameren Illinois, MidAmerican. As of Jan 1, 2025: supply-only net metering / Smart Solar Billing for new customers; legacy grandfathered We handle all interconnection paperwork with your utility to ensure your commercial solar is properly connected and credited.

Climate & Production

Illinois receives 4.0–4.8 peak sun hrs/day, which requires slightly larger systems than sunnier states but still delivers strong annual production. Our designs account for local weather patterns and seasonal variation.

Benefits of Commercial Solar in Illinois

60-90% energy cost reduction

Commercial ITC + MACRS

Demand charge mitigation

25+ year energy cost stability

ESG/sustainability goals

Enhanced property value

Commercial Solar in Illinois Cities

We provide commercial solar across 17+ Illinois communities.

Chicago Aurora Naperville Elgin Joliet Rockford Peoria Bloomington Champaign Springfield Schaumburg Arlington Heights Orland Park Bolingbrook Wheaton Downers Grove

View all Illinois cities

Commercial Solar in Illinois FAQs

How much does commercial solar cost in Illinois?

In Illinois, commercial solar costs vary by system size and location. With $0.15/kWh average electricity rates and 7–10 years (with Illinois Shines RECs) payback periods, Illinois offers strong ROI for solar investments. The 30% federal tax credit and federal solar tax credit (30%) reduce costs further.

Are there Illinois incentives for commercial solar?

Yes. Illinois offers Federal Solar Tax Credit (30%), Illinois Shines (Adjustable Block Program), utility smart inverter rebates. Additionally, the 30% federal solar tax credit applies to eligible systems. Our team handles all incentive paperwork for Illinois customers.

How does commercial solar work with ComEd?

ComEd customers in Illinois operate under As of Jan 1, 2025: supply-only net metering / Smart Solar Billing for new customers; legacy grandfathered. We handle all utility interconnection paperwork and ensure your system meets ComEd requirements for commercial solar.

Which cities in Illinois do you serve for commercial solar?

We serve 17+ cities across Illinois, including Chicago, Aurora, Naperville, Elgin, and many more. Find your city on our Illinois solar page.

Get Your Free Illinois Commercial Solar Quote

Get a free, no-pressure consultation with a solar expert. We'll analyze your energy usage, design a custom system, and show you exactly how much you'll save.

Get Free IL Quote Calculate Savings

Or call us at (800) 555-SOLAR