New Hampshire Solar Permit and Building Code Standards

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.

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.