New Hampshire Solar Incentives, Net Metering, and Savings (2026)
New Hampshire solar can still make sense, but 2026 is a "details year": your savings depend on how your utility credits exports, whether you're on default supply or a competitive supplier, and what incentives are still open. Use this guide to model your bill impact, size your system, and compare quotes confidently.
Quick take: Is solar worth it in New Hampshire?
Often, yes—especially for homeowners with good roof sun exposure and higher electric usage. The catch is that New Hampshire's best-known "headline incentives" have changed, so your payback is more about correct net metering assumptions and a realistic installed price than a big rebate.
If a proposal is still assuming a long-running federal solar credit through the 2030s, treat it as a red flag for 2026 planning: current IRS guidance says the Residential Clean Energy Credit isn't available for property placed in service after December 31, 2025.
2026 update: What incentives are actually available?
Federal Residential Clean Energy Credit (important timing note)
The IRS states the Residential Clean Energy Credit equals 30% of qualifying costs for property installed from 2022 through December 31, 2025, and that it's not available for property placed in service after December 31, 2025.
Practical guidance: If your system was installed and "placed in service" by the end of 2025, you may still be eligible to claim (subject to your tax situation). For projects starting in 2026, you should generally budget as if this credit is unavailable unless IRS guidance changes.
New Hampshire renewable energy rebates (current availability)
New Hampshire DOE indicates that, pursuant to HB 2 (2025), rebate programs are closed to new projects until further notice (with limited processing for Step 1 applications submitted by June 30, 2025). DOE also indicates the residential small renewable generation incentive payment program tied to RSA 362-F:10 was repealed/closed with SB 303 (2024).
What this means for homeowners: assume no new statewide cash rebate unless your project was already in the pipeline under DOE's stated deadlines, or a new program is officially announced.
Property tax: possible, but it's a local (town/city) decision
New Hampshire law allows each city/town to adopt an exemption from assessed value for property equipped with a solar energy system (RSA 72:62), and it defines "solar energy system" to include PV (RSA 72:61).
What to do: call your town/city assessing office and ask whether they have adopted the RSA 72:62 exemption and what the filing deadline is.
Costs, savings, and payback in New Hampshire
Solar pricing varies by roof complexity (steep pitches, multiple roof planes), electrical upgrades, and equipment. These ranges are intentionally conservative to avoid false precision:
| System size | Typical installed cost range | Common fit |
|---|---|---|
| 5 kW | $13,000–$22,000 | Smaller homes / partial offset |
| 7.5 kW | $18,000–$32,000 | Mid-usage homes |
| 10 kW | $24,000–$42,000 | Higher usage / more offset |
Payback drivers in NH (in plain English): your effective export credit value under your utility tariff, how much solar you use during the day, and whether your quote assumes a federal tax credit that no longer applies for 2026 "placed in service" timing.
Solar production in New Hampshire: what homeowners notice in real life
New Hampshire typically sees strong summer production and lower winter output. Snow cover, leaf-on shading, and roof orientation can swing production more than most state averages. Ask for a month-by-month production estimate, not just an annual total, so you can see whether your summer exports realistically translate into bill credits under your tariff.
System sizing guidance (kWh → kW)
A smart sizing process starts with your last 12 months of usage (kWh). Your installer should translate that into a production target using your roof's orientation and shading.
Example (illustrative):
If you used 10,800 kWh last year, you might start by asking for a design that targets roughly 80%–100% annual offset, then refine it after reviewing the month-by-month estimate and the export credit assumptions used in the savings model.
Permitting and interconnection in New Hampshire
Most projects follow this sequence: site visit → design → local permit → install → inspection → utility net metering/interconnection approval → Permission to Operate.
New Hampshire PUC rules (Puc 900) govern net metering interconnection requirements and processes statewide.
Example (timeline, illustrative):
Many projects land in the 6–14 weeks range from contract to Permission to Operate, but it can be faster or slower depending on local permit volume, inspection scheduling, and whether the project needs an electrical service upgrade.
Equipment choices that fit New Hampshire homes
If your roof has multiple angles or partial shading, microinverters or DC optimizers can help maintain production in less-than-ideal conditions. If your roof is simple and unshaded, a string inverter can be cost-effective. Batteries can be useful for backup power and for increasing self-consumption, but they add cost—so compare solar only vs solar + battery economics separately.
Choosing an installer and comparing quotes (the NH way)
When you compare bids, focus on assumptions and scope:
- •Confirm what net metering credit value the installer used and whether it matches your utility's description.
- •Ask how the savings estimate changes if you're on a competitive supplier (some credit components may not apply).
- •Require a line-item list of exclusions: electrical upgrades, roofing work, attic runs, trenching, and monitoring.
Example (apples-to-apples):
If Quote A assumes full retail credit for exports and a federal tax credit in 2026, while Quote B uses the utility's component-based credit approach and excludes the federal credit, Quote B may be the more realistic projection—even if the headline savings number looks smaller.
Ready to move forward with New Hampshire solar?
Get multiple quotes with clear net metering credit assumptions, utility supplier impact, sizing, and no 2026 federal credit assumptions side by side.
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Next step: get quotes that use the right assumptions
In New Hampshire, the best quote is the one that matches your utility's net metering credit structure, reflects your real usage, and doesn't depend on incentives that aren't available for 2026 timing.