Cost & Savings Breakdown
Based on $150/month electric bill in Great Falls
System Size
10.2 kW
Annual Production
14,314 kWh
Gross System Cost
$31,658
Federal Tax Credit (30%)
-$9,498
State Incentive
-$500
Net Cost
$21,661
Monthly Savings
$122
CO₂ Offset/yr
13,169 lbs
25-Year Savings Projection
Utility & Net Metering
Local UtilityNorthWestern Energy
Net Metering PolicyFull Retail
Compensation RateFull retail rate
Capacity LimitNo overall limit
Electricity Rate$0.102/kWh
Peak Sun Hours4.8 hrs/day
Available Incentives
30%
Federal ITC — Deduct 30% of your system cost from federal taxes. Available through 2032.
$500
Montana State Incentive — Montana offers a $500 tax credit for residential solar.
Common Questions
How much does solar cost in Great Falls?
Solar in Great Falls, Montana costs approximately $31,658 for a 10.2 kW system. After the 30% federal tax credit, your net cost is about $21,661.
What is the solar payback period in Great Falls?
The estimated payback period for solar in Great Falls is 14.8 years, based on a $150/month electric bill and local sun hours of 4.8 hrs/day.
Does NorthWestern Energy offer net metering?
NorthWestern Energy offers Full Retail net metering. Full retail rate.