Plug-in solar in New Hampshire
Signed, not yet effective Takes effect January 1, 2027, in 84 days
Soon. New Hampshire has signed a plug-in solar law (SB 540-FN) that takes effect on January 1, 2027. It will cover kits with up to 1,200 W of output, AC inverter output; one system per metered customer.
The device
- Power limit
- 1,200 W (AC inverter output; one system per metered customer)
- Certification
- Anti-islanding and rapid shutdown safeguards, certified and listed per industry standards
- Electrical code (NEC)
- Not specified
- Stops when the grid goes down
- Required
Your utility
- Approval
- Not required
- Notice
- Only if your utility requires it
- Details
- Utilities may offer a method to tell them the wattage and number of devices, for notification only.
- Fees
- Utility may not charge fees
- Interconnection agreement
- Not specified
Renters
- Protected
- Not specified
- Details
- Not addressed in the bill text.
Homeowners associations
- Protected
- Not specified
- Details
- Not addressed in the bill text.
Local permits
- May apply
- Yes
- Details
- Must comply with the state building code (RSA 155-A) where applicable and manufacturer instructions.
Electricity price
- Average home rate
- 28.1¢ per kWh
Sources
- bills.nhliberty.org/bills/2026/SB540/revision/50797
- vnews.com/2026/08/14/nh-balcony-solar-law-2027/
- pluginsolarguide.com/compare-laws
Data as of October 8, 2026. Reference only, not legal advice. Check the bill text, your utility and your landlord or association.
Other states with plug-in solar laws
- California Signed, not yet effective
- Colorado Law in effect
- Connecticut Law in effect
- Maine Law in effect
- Maryland Law in effect
- New Jersey Signed, not yet effective
- Utah Law in effect
- Vermont Law in effect
- Virginia Signed, not yet effective