Solar Panel Cost in Billings, MT
Updated 2026 guide to solar panel prices, savings, and payback period in Billings.
Estimated Solar Savings
Solar Panel System Costs in Billings, MT
Below are estimated costs for different solar panel system sizes in Billings, including the 30% federal solar tax credit.
| System Size | Cost Before Incentives | Federal Tax Credit (30%) | Net Cost | Est. Annual Production |
|---|---|---|---|---|
| 4 kW | $12,200 | -$3,660 | $8,540 | 6,570 kWh |
| 6 kWMost Popular | $18,300 | -$5,490 | $12,810 | 9,855 kWh |
| 8 kW | $24,400 | -$7,320 | $17,080 | 13,140 kWh |
| 10 kW | $30,500 | -$9,150 | $21,350 | 16,425 kWh |
| 12 kW | $36,600 | -$10,980 | $25,620 | 19,710 kWh |
What Affects Solar Panel Cost in Billings?
The average cost of solar panels in Billings, MT is approximately $305/watt before incentives. For a typical 6kW residential system, that means a total cost of about $18,300 before the federal tax credit.
After applying the 30% federal Investment Tax Credit (ITC), your net cost drops to approximately $12,810.Billings homeowners typically see a payback period of 10 years and save an estimated $25,000 over 25 years.
Factors that affect your cost in Billings:
- System size: Larger systems cost more but have a lower cost per watt
- Equipment quality: Premium panels and inverters cost more but offer better efficiency
- Roof complexity: Steep roofs, multiple levels, or shading can increase installation costs
- Local labor rates: Installation costs vary within the Billings metro area
- Local permits: Permitting costs and requirements vary by municipality in Billings
- Incentives: State and local programs can significantly reduce your out-of-pocket cost
Solar Incentives Available in Billings
Federal Solar Investment Tax Credit
30% Federal Tax Credit (ITC)
Montana homeowners can claim the 30% federal ITC along with a state tax credit for solar installations.
State & Local Incentives
Montana Alternative Energy System Tax Credit
Tax CreditMontana offers a state income tax credit for residential alternative energy systems including solar.
Property Tax Exemption
Property TaxMontana exempts solar energy equipment from property taxes for 10 years after installation.
Net Metering
Montana requires NorthWestern Energy and other utilities to offer net metering for residential solar customers with systems up to 50 kW.
AvailableSRECs
Montana does not have an SREC market, though the state has a Renewable Portfolio Standard.
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Top Solar Companies in Billings, MT
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Solar Panel Cost FAQ - Billings, MT
The average cost of solar panels in Billings is approximately $3.05 per watt before incentives. A typical 6kW residential system costs about $18,300 before the 30% federal tax credit, bringing the net cost to around $12,810.
The typical payback period for solar panels in Billings is approximately 10 years. After that, you'll enjoy free electricity for the remaining 15-20+ years of your system's life, saving an estimated $25,000 over 25 years.
Billings homeowners can take advantage of the 30% federal solar tax credit, which reduces your system cost by 30%. Montana also offers net metering, and various state-level incentive programs. Check our incentives page for the complete list.
Billings homeowners can save an estimated $25,000 over 25 years by going solar. Actual savings depend on your electricity usage, system size, roof orientation, and available incentives. With electricity rates averaging $0.12/kWh in Montana, solar provides significant long-term savings.
Solar Costs in Other Montana Cities
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