Are Solar Panels Worth It in New Hampshire? (2026)

Yes — solar is worth it in New Hampshire. — a 6.0 kW rooftop system in New Hampshire pays back in about 7.6 years and delivers $22,434 in net 20-year savings after install cost and the federal tax credit. Payback comfortably inside panel warranty life. Get 3 quotes to lock in the best installed price.

Payback7.6 yrs

Annual savings$1,815

Net install (after ITC)$13,860

20-yr net$22,434

Assumes 6 kW system at $3.30/watt (state avg), 3.9 peak sun hours/day in New Hampshire, and 27.24¢/kWh electricity rate (April 2026).

The short answer

For most New Hampshire homeowners planning to stay 8+ years, rooftop solar pencils out clearly positive over 20 years.

The 4 things that actually determine "worth it"

Electricity rate. New Hampshire: 27.24¢/kWh. National avg: 18.83¢. You’re 45% above average — solar looks strong here.
Sunshine. New Hampshire: 3.9 peak sun hours/day. National avg: 4.5. Below average — you’ll need a slightly larger system for the same production.
Install cost in New Hampshire. $3.30/watt (state avg). Above national $3.00/W — market is smaller / labor more expensive.
Incentive stack. Federal ITC 30% applies universally. No state income-tax credit in New Hampshire. Net metering: Yes, 1:1 for systems <100 kW Full incentive breakdown →

Where New Hampshire ranks nationally

Across all 51 states, New Hampshire ranks #10 of 51 by 20-year net solar savings (1 = best). The top states are dominated by combinations of high electricity rates and high sunshine (CA, HI, MA, NY, CT). The bottom are cheap-power / cloudy-sky states (WA, OR, ID, ND).

See the full national ranking.

Break-even analysis

Your solar system in New Hampshire needs to save $13,860 in electricity to pay for itself. At $1,815/year savings, that’s 7.6 years. Panels are warrantied for 25 years and typically last 30+ — meaning 22.4+ years of free electricity after breakeven.

Common objections addressed

“What if I move before payback?”

Homes with paid-off solar typically sell for ~$15,000-$25,000 more than comparable homes without. If you owe money on the panels (loan), the sale is more complex. Cash or fully-paid-off systems recover most or all of the remaining "unused" value at sale.

“Won’t rates drop?”

U.S. residential electricity rates have risen ~4%/year over the past decade. Even if rates flatline, the payback above holds. If rates rise, your solar looks better in retrospect.

“What about hail / storms?”

Solar panels are rated for 1-inch hail at 50 mph. Damage claims are covered by homeowner’s insurance in almost all cases (verify with your carrier).