Cost & Savings Breakdown
Based on $150/month electric bill in Joliet
System Size
7.5 kW
Annual Production
9,669 kWh
Gross System Cost
$23,329
Federal Tax Credit (30%)
-$6,999
State Incentive
-$10,000
Net Cost
$6,331
Monthly Savings
$122
CO₂ Offset/yr
8,895 lbs
25-Year Savings Projection
Utility & Net Metering
Local UtilityComEd
Net Metering PolicyFull Retail
Compensation RateFull retail rate
Capacity LimitNo overall limit
Electricity Rate$0.151/kWh
Peak Sun Hours4.4 hrs/day
Available Incentives
30%
Federal ITC — Deduct 30% of your system cost from federal taxes. Available through 2032.
$10,000
Illinois State Incentive — Illinois offers a Solar Renewable Energy Credit (SREC) program worth up to $10,000.
Common Questions
How much does solar cost in Joliet?
Solar in Joliet, Illinois costs approximately $23,329 for a 7.5 kW system. After the 30% federal tax credit, your net cost is about $6,331.
What is the solar payback period in Joliet?
The estimated payback period for solar in Joliet is 4.3 years, based on a $150/month electric bill and local sun hours of 4.4 hrs/day.
Does ComEd offer net metering?
ComEd offers Full Retail net metering. Full retail rate.