Solar Companies in Illinois
4.0 hrs/day
Peak Sun Hours
$0.15/kWh
Electricity Rate
$14,000
Avg. System Cost (6kW)
Illinois has become a Midwest solar leader thanks to its Adjustable Block Program, which pays homeowners for Solar Renewable Energy Credits (SRECs) generated by their systems. The Prairie State receives about 4 peak sun hours daily, and strong incentives more than compensate for its moderate solar resources.
ComEd and Ameren Illinois, the state's two major utilities, both offer full retail net metering. The Illinois Shines Adjustable Block Program provides upfront or ongoing SREC payments that can be worth $4,000-$8,000 over the life of a residential system. Illinois also exempts solar equipment from sales tax and provides a property tax exemption.
Chicago, Springfield, and Peoria are among the top markets for residential solar. With SRECs, federal tax credits, and high electricity rates in the ComEd territory, Illinois homeowners frequently achieve payback periods of 6-9 years.
Solar Incentives in Illinois
Federal ITC: 30% tax credit on total system cost (through 2032)
Net Metering: Full Retail
State Tax Credit: No state-level credit
Illinois offers full retail net metering, Solar Renewable Energy Credits (SRECs) through the Adjustable Block Program, and sales tax exemptions.
City-level data for Illinois coming soon. Check back as we expand our directory.