Are solar panels worth it in Illinois? The honest 2026 answer
Illinois Shines REC income stacked on ComEd or Ameren net metering makes Illinois one of the strongest Midwest solar markets — despite moderate sun. For Chicago-area homeowners especially, the financial case is clear.
Illinois is a better solar market than most people outside the state realize. The Illinois Shines Adjustable Block Program creates a guaranteed income stream from your solar production for 15 years — stacked on top of ComEd or Ameren net metering credits. This double-stacking is what makes Illinois stand out among Midwest states that lack large solar incentives.
For Chicago and northern Illinois homeowners on ComEd, the financial case is strongest. ComEd’s retail rates ($0.17–$0.22/kWh) are higher than downstate Ameren rates, and the Chicago metro has a competitive installer market with lower prices. Payback for a well-sized Chicago-area system with Illinois Shines: typically 7 to 9 years.
For downstate Illinois homeowners on Ameren, electricity rates are lower and sun hours similar, which extends payback somewhat. Illinois Shines SREC income remains available and helps the case. Payback for downstate systems: typically 9 to 12 years.
Solar is NOT worth it in Illinois if you rent, plan to sell within 4 to 5 years, have a heavily shaded roof, or your installer is not enrolled in Illinois Shines (which means you would lose the SREC income).