Cost & Savings Breakdown
Based on $150/month electric bill in O'Fallon
System Size
10.1 kW
Annual Production
13,905 kWh
Gross System Cost
$29,382
Federal Tax Credit (30%)
-$8,815
State Incentive
-$500
Net Cost
$20,067
Monthly Savings
$122
CO₂ Offset/yr
12,792 lbs
25-Year Savings Projection
Utility & Net Metering
Local UtilityAmeren Missouri
Net Metering PolicyFull Retail
Compensation RateFull retail rate
Capacity LimitNo overall limit
Electricity Rate$0.105/kWh
Peak Sun Hours4.7 hrs/day
Available Incentives
30%
Federal ITC — Deduct 30% of your system cost from federal taxes. Available through 2032.
$500
Missouri State Incentive — Missouri offers a property tax exemption for solar installations.
Common Questions
How much does solar cost in O'Fallon?
Solar in O'Fallon, Missouri costs approximately $29,382 for a 10.1 kW system. After the 30% federal tax credit, your net cost is about $20,067.
What is the solar payback period in O'Fallon?
The estimated payback period for solar in O'Fallon is 13.7 years, based on a $150/month electric bill and local sun hours of 4.7 hrs/day.
Does Ameren Missouri offer net metering?
Ameren Missouri offers Full Retail net metering. Full retail rate.