Question 1

How much sun is there in Illinois?

Accepted Answer

Illinois averages approximately 4.5 peak sun hours per day, providing a robust solar resource that has led to some of the highest yearly production growth in the Midwest region. Solar panels in Illinois generate substantial energy across all four seasons.

Question 2

Are solar panels worth it in Illinois?

Accepted Answer

Yes, particularly with recent proposed updates that significantly increase the value of renewable energy credits for local owners. A typical residential system can pay for itself in 7 to 9 years while delivering decades of energy savings.

Question 3

How much do solar panels cost in Illinois?

Accepted Answer

In 2026, the average cost is approximately $2.95 per watt. A standard 9 kW system in Illinois costs around $18,585 after federal incentives, with the Illinois Shines program providing additional per-watt rebates that can further lower the net cost.

Question 4

Does Illinois offer net metering?

Accepted Answer

Yes. Illinois requires all investor-owned utilities to offer net metering, allowing solar customers to receive full retail-rate credits for excess energy. This policy is a major driver of the financial case for solar panels in Illinois.

Question 5

What are the primary solar incentives in Illinois?

Accepted Answer

The Illinois Shines incentive program provides upfront rebates, and enhanced REC values reward customer-owned systems. Combined with localized city rebates, the 30% Federal Tax Credit, and sales tax exemptions, Illinois offers one of the most attractive incentive stacks in the Midwest.

Solar Equipment Procurement for Illinois Professionals