Plug-in solar rules in Maine

Is plug-in solar allowed in Maine?

Yes. LD 1730 (P.L. 2025, c. 644), 35-A M.R.S. § 3475 has applied since July 29, 2026.

How much power can I connect?

Up to 420 W of inverter output per home.

What do I need to do?

Check these requirements before you connect a kit.

• Listed to UL 3700 or a comparable standard by a nationally recognized testing laboratory, or configured under the National Electrical Code adopted in Maine; inverters shut off within 0.2 seconds of a power loss.
• No notification to the utility is needed.
• You can install the kit yourself.
• Batteries are allowed.

Can a landlord or HOA stop me?

Renters have no specific protection. Homeowners associations (HOAs) can set their own rules.

Will I be paid for power I export?

No. There is no payment for power sent to the grid, so savings come from the electricity you use yourself.

Other details

Above 420 W and up to 1,200 W per service address, each system must be installed by a licensed electrician on a dedicated circuit with a single outlet, and you must notify your utility on the Maine PUC form within 30 days of installation. Plug-in batteries are covered. Kits cannot be used for net energy billing.