Solar cost & payback in Montana
Short answer
In Montana, a home with a $150/month electric bill needs about a 11 kW solar system — roughly $23,026 after the 30% federal tax credit, saving about $1,801/year and paying back in ~12.8 years.
System size
11 kW
Cost after 30% credit
$23,026
Payback
12.8 yrs
20-yr net savings
$22,979
Solar in Montana
Montana averages about 4.5 peak sun hours a day and pays roughly 12.5¢/kWh. The figures above assume a $150/month bill and ~$3/watt installed, with the 30% federal tax credit. A bigger bill needs a bigger system; shading, roof orientation, and net-metering rules change the payback.
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Frequently asked questions
How much do solar panels cost in Montana?
For a $150/month bill, about a 11 kW system — roughly $32,895 before incentives, or $23,026 after the 30% federal tax credit. Larger bills need bigger, pricier systems.
Is solar worth it in Montana?
Montana gets about 4.5 peak sun hours a day and pays ~12.5¢/kWh. A typical system pays back in ~12.8 years and saves about $22,979 net over 20 years — a longer payback, so run your own numbers.
What is the solar tax credit in Montana?
The 30% federal Residential Clean Energy Credit applies everywhere, including Montana — about $9,868 on the example system. Montana may add its own state incentives on top; check current programs.