Cost & Savings Breakdown
Based on $150/month electric bill in Billings
System Size
10.7 kW
Annual Production
14,747 kWh
Gross System Cost
$33,312
Federal Tax Credit (30%)
-$9,994
State Incentive
-$500
Net Cost
$22,818
Monthly Savings
$122
CO₂ Offset/yr
13,568 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$0.099/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
Montana State Incentive — Montana offers a $500 tax credit for residential solar.
Common Questions
How much does solar cost in Billings?
Solar in Billings, Montana costs approximately $33,312 for a 10.7 kW system. After the 30% federal tax credit, your net cost is about $22,818.
What is the solar payback period in Billings?
The estimated payback period for solar in Billings is 15.6 years, based on a $150/month electric bill and local sun hours of 4.7 hrs/day.
Does NorthWestern Energy offer net metering?
NorthWestern Energy offers Full Retail net metering. Full retail rate.