Plug-In Solar by State: Live Map of US Laws (Verified)

Plug in solar by state is a patchwork. As of November 9, 2026, ten US states have signed laws that let you connect a small solar kit to a wall outlet: Utah, Maine, Virginia, Colorado, Maryland, New Hampshire, Connecticut, Vermont, New Jersey and California. Some are already in force, others start in 2027. Click or tap a state on the map to see its law, the wattage cap, the start date and our verification date. Every state is also in the list below the map, so you can use it with a keyboard.

Plug-in solar laws by stateVerified November 9, 2026

Law in force
Signed, starts later
No state law (not a ban)
Bill passed, not law

Tap or click a state to see its law, wattage cap, start date and the official source.

How to Read the Map

Each state has one of three colors. We check the official text of the law, not a news summary, and we check what is in force today rather than what is merely passed.

Legal The law is signed and already in force. Utah, Colorado, Connecticut, Vermont and Maryland are here, and so is Maine, signed on April 6, 2026, although its text prints no exact start date.
Signed, not in force yet The law is signed but not yet in force. Virginia, New Hampshire, New Jersey and California start in 2027.
No law yet No state law on plug-in solar. This covers most of the country.

There is no fourth “not allowed” color. We found no state that bans plug-in solar, so we do not use that label.

New York is the one to watch. Both chambers passed the SUNNY Act on May 28, 2026, but the Senate record shows it has not been delivered to the Governor, so it is not law. It could still be delivered before the end of the year.

State Guides

We have a full guide for the five states people ask about most. Each one explains the law, or the lack of one, in plain English.

The Ten States in One Line Each

Utah: 1,200 W, in force since May 7, 2025, no utility approval or fee.
Colorado: up to 1,920 W, in force since August 12, 2026, one system per home.
Connecticut: 1,200 W per meter, in force since October 1, 2026.
Vermont: 1,200 W per meter, from July 1, 2026, smart meter required and export is not paid.
Maryland: 1,200 W, July 1, 2026 per the revised fiscal note, and you notify the utility before installing. Sources disagree slightly on the date.
Virginia: 1,200 W, starts January 1, 2027, and you notify before installing.
California: 1,200 W AC per dwelling, mostly from January 1, 2027, with exemptions that end on January 1, 2030.
New Hampshire: 1,200 W AC, starts January 1, 2027.
New Jersey: 1,200 W, signed September 1, 2026. Start date March 1, 2027, six months after enactment, per our hand check of the legislature text.
Maine: 1,200 W, with a licensed electrician needed above 420 W. Start date not confirmed.

What “No Law” Means for You

If your state is not on the list, plug-in solar is not banned there. There is also no federal ban, and no federal rule of its own. What applies is your utility’s interconnection process and the electrical code your state has adopted.

The laws above all exempt plug-in solar from interconnection requirements. That suggests those requirements apply where there is no law. This is our inference, not a rule we could verify utility by utility, so treat it as a reason to ask your utility first, not as a prohibition.

There is a code gap behind this. A proposal to the National Electrical Code states that the 2020, 2023 and 2026 editions have no definition of a plug-in photovoltaic system. It is a proposal from an interested manufacturer, not an adopted change.

Our guide to whether plug-in solar is legal in the US covers the federal picture in more detail, and the US plug-in solar overview explains how a kit works.

How We Verify

We read the official text of each law on the state legislature’s own site, record the date we read it, and then check it by hand. The status on the map is the text of the law, not a tracker or a news report.

Where an official site blocked our automated tools, we read a mirror of the text and then checked the key facts by hand on the official site, as we did for California and New Hampshire. Where the text and a tracker disagree, the text wins. For example, one tracker gave New Hampshire a July 2026 start, while the chaptered text says January 1, 2027.

One thing stays open. Maine’s start date is flagged “date not confirmed” in the map panel until we can read the exact clause. Maryland’s date rests on the revised fiscal note, not on the chapter text. Renters and condo owners should also check the landlord and HOA guide and the renters pack, because several states add their own tenant rules.

Sources

Each one opened and checked on November 9, 2026.

Questions people ask

Which states have legalized plug-in solar?

Ten states have signed laws as of November 9, 2026: Utah, Maine, Virginia, Colorado, Maryland, New Hampshire, Connecticut, Vermont, New Jersey and California. Utah, Colorado, Connecticut, Vermont and Maryland are already in force. Four start in 2027, and Maine's exact start date is not printed in its text. New York has passed a bill but it is not law.

Is plug in solar legal in arizona?

Arizona has no plug-in solar law as of November 9, 2026. No state bans it, so this is not the same as illegal. Without a state law, your utility's interconnection process applies, and we could not check each utility. Ask your utility before you plug in.

How often is this map updated?

We re-check every state's official legislature text whenever a bill moves, and on a regular review. Each state shows the date it was last verified. If a status changes, such as New York's bill being signed, the map and the state page are updated and the date moves with them.