New Hampshire Solar Guide 2026
Everything New Hampshire homeowners need to know: costs, incentives, net metering policy, and what makes this state unique for solar.
Key fact about New Hampshire solar
New Hampshire's high electricity rates (~$0.24/kWh) and full retail net metering make the math work despite limited sun. NH has among the fastest-growing solar markets in New England on a per-capita basis.
Peak sun hours
4
hrs/day avg
Avg electricity rate
24.0¢
per kWh
Median install cost
$3.15/W
before incentives
Typical payback
9 yrs
8 kW system, avg usage
Typical 8 kW system in New Hampshire
Annual production
11,680 kWh
Year-1 savings
$2,803
System cost (est.)
$25,200
No federal tax credit — Section 25D expired December 31, 2025.
New Hampshire Net Metering Policy
Full retail net metering
New Hampshire requires full retail net metering under RSA 362-A:9. Eversource NH and Unitil must credit excess at retail. Unused monthly credits roll for 12 months before annual settlement at avoided cost.
New Hampshire Solar Incentives
Available in addition to any utility rebates. Federal 25D credit is $0 for homeowner-owned systems from 2026.
- ✓NH Electric Co-op rebate programs
- ✓Property tax exemption
- ✓Clean Energy Fund low-interest loans
Top Utilities in New Hampshire
Interconnection timeline: 5–10 weeks
Calculate your New Hampshire solar economics
Our calculators are pre-filled with New Hampshire data. Run any tool below.