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CityRuleLookup

New Hampshire Statewide Rule

New Hampshire Solar Permit and Building Code Standards

Some RestrictionsApplies statewide across New Hampshire (2026)

Key Facts

Building Code
RSA 155-A
Electrician License
RSA 319-C
Code Uniformity
Statewide minimum
Permit Authority
Local enforcement
Tax Exemption
RSA 72:61, local option
Last verified: September 5, 2026Source: New Hampshire General Court

Summary

New Hampshire RSA 155-A adopts the State Building Code requiring solar installations to meet uniform structural and electrical standards. While municipalities issue permits, the substantive code requirements apply statewide and cannot be made more restrictive locally.

III-a. Proper regulations encourage energy efficient patterns of development, the use of solar energy, including adequate access to direct sunlight for solar energy uses, and the use of other renewable forms of energy, and energy conservation. Therefore, the installation of solar, wind, or other renewable energy systems or the building of structures that facilitate the collection of renewable energy shall not be unreasonably limited by use of municipal zoning powers or by the unreasonable interpretation of such powers except where necessary to protect the public health, safety, and welfare;

Source: New Hampshire General CourtView official code

Full Breakdown

RSA 155-A establishes the New Hampshire State Building Code, incorporating IRC, IBC, and NEC standards that apply uniformly to all construction including rooftop solar PV installations. Municipalities issue building and electrical permits but must enforce the state code as adopted. RSA 155-A:7 generally prohibits local amendments that conflict with state code minimums. Solar installations require structural assessment for roof load, fire setbacks per IRC, and licensed electrician installation per RSA 319-C. While permit fees vary locally, technical standards are statewide. RSA 374-G also addresses utility interconnection. Property tax exemption for solar is authorized under RSA 72:61-72, though adoption is by local option.

Violations & Penalties

Installing solar without required permits violates RSA 155-A and local enforcement provisions, with stop-work orders, fines, and required remediation. Unlicensed electrical work violates RSA 319-C.

Frequently Asked Questions

Do all New Hampshire towns require solar permits?
Yes. The State Building Code under RSA 155-A applies statewide and requires building and electrical permits for solar PV installations, issued by the local enforcement authority.
Can a town impose stricter solar code requirements?
Generally no. RSA 155-A establishes uniform minimum standards, and local amendments that conflict with state code are limited. Towns enforce the adopted state code.

Sources

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