Discover your exact solar savings potential in Illinois. We factor in local utility rates, sun hours, and state-specific incentives to give you an accurate ROI estimate.
DISCLAIMER: All estimates are approximations based on regional averages. Actual savings vary by location, roof orientation, utility provider, and installer. This calculator does not guarantee specific savings.
Electricity rates last updated: August 2026 (source: EIA)
Find out how much you can save based on your location and current energy usage.
Illinois' average residential electricity rate is roughly 23.85¢/kWh — among the higher rates in the nation. Every kilowatt-hour your solar system produces replaces costly grid power, which supports payback. Confirm your specific rate with ComEd or Ameren before estimating savings.
Illinois offers the Illinois Shines adjustable block program (SREC-based payments for solar generation) and a property tax special assessment for solar equipment. There is no upfront state solar rebate, no sales tax exemption, and no state income tax credit. The 30% federal residential solar tax credit (Section 25D) expired December 31, 2025 and does not apply to systems installed in 2026 or later.
Illinois averages roughly 4.5 peak sun hours per day — near the national average. Production is reasonable; ask a local installer for a site-specific production estimate using your actual roof conditions.
Everything you need to know about solar incentives, costs, and savings in your area.