New Hampshire's high regional rates and a residential rebate make solar a sound investment across the state. Here are New Hampshire's 2026 solar incentives, electricity rates, net metering rules and typical payback — plus tools to run your own numbers.
SCReviewed by Sarah Chen, Energy AnalystSources: DSIRE, EIA, IRS
Solar economics in New Hampshire are shaped by an average rate near ~29¢/kWh and moderate sunshine. Photo: American Public Power Association / Unsplash
Updated October 2026 — federal credits have ended. The One Big Beautiful Bill Act (signed July 4, 2025) ended the 30% federal Residential Clean Energy Credit (25D: solar, batteries, geothermal) and the Energy Efficient Home Improvement Credit (25C: air-source heat pumps, up to $2,000) for anything installed after December 31, 2025. Systems completed by Dec 31, 2025 can still be claimed on a 2025 return. Any 30% or $2,000 figure on this page applies only to those installs — our calculators now default to $0 federal credit. What is still available in 2026 →
Quick answerSolar in New Hampshire typically pays back in 10–12 years. With electricity rates around ~29¢/kWh, moderate sunshine, a 7 kW system costs about $21,000 before New Hampshire's own incentives — the 30% federal credit ended for installs after Dec 31, 2025. Headline state perk: High rates + residential solar rebate.
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New Hampshire solar at a glance
Avg electricity rate~29¢/kWh
Typical payback10–12 years
SunshineModerate
Net meteringNet metering (retail minus a small adjustment)
Federal tax creditEnded 12/31/2025
7 kW cost*~$21,000
*National-average $3.00/W system before New Hampshire state incentives (no federal credit for 2026 installs).
Is solar worth it in New Hampshire?
New Hampshire's high regional rates and a residential rebate make solar a sound investment across the state. At an average residential rate of about ~29¢/kWh, every kilowatt-hour your panels produce is a kilowatt-hour you don't buy from the utility — and that avoided cost is what drives your payback. Combined with moderate sunshine, a standard 7 kW system in New Hampshire generally pays for itself in 10–12 years with no federal tax credit, then delivers a decade or more of nearly free power.
To see your own number rather than this state average, plug your actual electric bill into the Solar Payback Calculator. If you're weighing how to pay, the Financing Calculator compares cash, loan and lease side by side.
New Hampshire solar incentives in 2026
The federal 30% credit ended for systems installed after Dec 31, 2025, so New Hampshire's own incentives now carry more weight:
Residential Renewable Electrical Generation Rebate for systems up to a set capacity
Net metering credits excess generation at near-retail value
No state sales tax, lowering total install cost
State programs change frequently. Always confirm current details and eligibility on the DSIRE database and with a licensed local installer before you sign anything.
Buying vs leasing solar in New Hampshire in 2026
With the homeowner credit gone, the math has shifted. If you buy (cash or loan), you now pay the full installed price — about $21,000 for a typical 7 kW system — minus only New Hampshire state and utility incentives. If you lease or sign a PPA, the company that owns the panels may still claim a commercial clean-energy credit (Section 48E) for projects that begin construction by July 4, 2026 or are placed in service by the end of 2027, and some pass part of that saving to you as a lower monthly rate. Get one cash quote and one lease/PPA quote, then compare 25-year cost in the Lease vs Buy Calculator.
Net metering in New Hampshire
New Hampshire uses Net metering (retail minus a small adjustment). Net metering is the second-biggest factor in your solar economics after your electricity rate, because it determines how much credit you earn for the excess power your panels send back to the grid. Generous, full-retail net metering shortens payback; reduced export rates lengthen it and increase the value of pairing your system with a home battery.
Run your New Hampshire solar numbers
Use your real electric bill for a personalized payback — free, no sign-up.
Yes for most New Hampshire homeowners. With average electricity rates around ~29¢/kWh and moderate sunshine, a typical 7 kW system pays back in about 10–12 years now that the 30% federal tax credit has ended. Your exact result depends on your roof and usage — run it in the Payback Calculator.
What solar incentives does New Hampshire offer in 2026?
With the 30% federal credit ended for 2026 installs, New Hampshire's own programs matter more: Residential Renewable Electrical Generation Rebate for systems up to a set capacity; Net metering credits excess generation at near-retail value; No state sales tax, lowering total install cost. See the full list with current details on DSIRE.
How does net metering work in New Hampshire?
New Hampshire uses Net metering (retail minus a small adjustment). Net metering rules are the second-biggest driver of solar value after your electricity rate, because they set how much you earn for the excess power you export to the grid.
How much does solar cost in New Hampshire?
A typical 7 kW residential system runs about $21,000 before incentives at the 2026 national average of $3.00/W — with no federal tax credit for systems installed in 2026 — before any New Hampshire state incentives. Use the Tax Credit Calculator to check whether a 2025 install still qualifies.
Sarah has spent 12 years modeling US residential solar economics, including 4 years contributing to NREL's Distributed Generation Market Demand model. She holds a BS in Mechanical Engineering from UC Berkeley and reviews every calculator and state guide on GreenCalcs against current IRS, DSIRE and EIA data. Read our methodology →
