Solar System Sizing Tool — St. George, UT
Use our interactive tool to determine the right solar system size for your home in St. George. Adjust your monthly electricity bill and home size to see a personalized recommendation based on local solar conditions.
Size Your Solar System
Local rate: 12.8¢/kWh
Peak sun hours: 6.2h/day
5.2
System Size (kW)
13
Panels Needed
234
Roof Space (sq ft)
$14,758
Est. Cost
11,719
Annual kWh
100%
Energy Offset
How We Calculate Your System Size
Your recommended solar system size is based on several factors specific to St. George, UT:
- Electricity usage: Your monthly bill is converted to annual kWh consumption using the local rate of 12.8¢/kWh.
- Solar irradiance: St. George receives an average of 6.2 peak sun hours per day, which determines how much energy each panel produces.
- Panel specifications: We use 400W panels, each requiring approximately 18 sq ft of roof space, which is standard for modern residential installations.
- Roof space: The total roof area needed depends on the number of panels. The average home in St. George is 2,000 sq ft.
Solar at a Glance: St. George, UT
12.8¢
Avg Rate / kWh
6.2h
Peak Sun Hours / Day
5.2 kW
Avg Recommended Size
13
Avg Panels Needed
$14,758
Est. Cost (before incentives)
City of St. George Energy Services
Utility Provider
Other Cities in Utah
Related Resources
Ready to Go Solar in St. George, UT?
Get a Custom Solar Design for St. George
Our experts will assess your roof, energy needs, and local conditions to design the perfect system for your St. George home.
Get Your Free Quote