Solar Panels in New Hampshire2026 Cost Guide & Incentives
Average cost, state incentives, payback estimates, and how to find certified installers in New Hampshire.
$18,000–$31,000
Avg system cost
$12,600–$21,700
After 30% ITC
4.2 hrs/day
Peak sun hours
$0.238/kWh
Avg rate
Is Solar Worth It in New Hampshire?
Based on a home with a $150/month electric bill in New Hampshire
Est. system size
4.5 kW
Gross cost
$13,163
Federal tax credit
−$3,949
Net cost
$9,214
Year-1 savings
$1,800
20-year savings
$45,911
Estimated payback: 5.1 years — then 14 years of free electricity.
* Estimates assume $2.90/W installed, 92% solar offset, and 3% annual electricity rate inflation. Get an installer quote to confirm your actual savings.
New Hampshire Solar Incentives & Policies
Federal
Investment Tax Credit (ITC)
30%
of total system cost — off your federal tax bill
Available through 2032
New Hampshire State
State Incentive
Property & sales tax exemptions + NHEC rebates
Additional New Hampshire Solar Policies
Net Metering: Available — excess energy credited to your bill
Property Tax Exemption: Solar system value exempt from property taxes
Sales Tax Exemption: Solar equipment exempt from state sales tax
Solar Installation Cost in New Hampshire by System Size
| System size | Gross cost | After 30% ITC | Year-1 savings |
|---|---|---|---|
| 5 kW | $12,272,800 | $8,590,960 | $1,678,328/yr |
| 7 kW | $17,181,920 | $12,027,344 | $2,349,660/yr |
| 9 kW | $22,091,040 | $15,463,728 | $3,020,991/yr |
| 12 kW | $29,454,720 | $20,618,304 | $4,027,988/yr |
* Costs based on $2.90/W national average. New Hampshire installer pricing may vary ±15%.
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Frequently Asked Questions — Solar in New Hampshire
How much do solar panels cost in New Hampshire?
Solar installation in New Hampshire typically costs $18,000–$31,000 before incentives. After the 30% federal tax credit, most homeowners pay $12,600–$21,700 net.
Is solar worth it in New Hampshire?
Yes — New Hampshire homeowners benefit from 4.2 average peak sun hours per day and relatively high electricity rates ($0.238/kWh). The 30% federal ITC combined with property & sales tax exemptions + nhec rebates make the financial case strong for most homeowners.
What state incentives are available for solar in New Hampshire?
Property & sales tax exemptions + NHEC rebates. On top of state incentives, all New Hampshire homeowners qualify for the federal 30% Investment Tax Credit (ITC). Your solar system is also exempt from property tax assessment. Solar equipment is exempt from sales tax in ${s.name}.
How long is the payback period for solar in New Hampshire?
Based on New Hampshire's average electricity rate of $0.238/kWh and 4.2 peak sun hours, most homeowners see payback in 5.1–7 years. Systems then produce free electricity for 15–20+ more years.
Does New Hampshire have net metering?
Yes — New Hampshire has a net metering policy that credits your utility bill for excess electricity your system sends back to the grid. This significantly improves your ROI.