Solar Panel Cost in New Hampshire (2026)
In New Hampshire, home solar installs for roughly $2.85/watt in 2026. A typical 8 kW system runs about $22,800, with an estimated payback near 8.4 years at the state's ~27¢/kWh electricity rate.
| System size | Est. cost | Est. annual savings | Payback |
|---|---|---|---|
| 6 kW | $17,100 | $2,000/yr | 8.4 yrs |
| 8 kW | $22,800 | $2,700/yr | 8.4 yrs |
| 11 kW | $31,400 | $3,700/yr | 8.4 yrs |
Estimates use ~$2.85/watt installed and New Hampshire's ~27¢/kWh rate. Before any state/local incentives.
New Hampshire solar notes
New Hampshire credits exports at roughly the default-service energy rate plus a portion of distribution charges, and high retail prices support solar despite limited state rebates.
Heads up: the 30% federal tax credit for purchased home solar ended Dec 31, 2025. Leased/PPA systems may still qualify through 2027, and New Hampshire may offer its own incentives — check locally.
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