Find Your State's Status
Select from the dropdown or filter by status below
| State | Status | Wattage cap | Est. annual savings* |
|---|
*Estimated annual savings from a standard 800W plug-in kit using EIA 2026 state electricity rates, NREL peak sun hours, an 85% system factor, and 75% self-consumption. Actual results vary. Click any row to see full state details.
Understanding the State Legality Map
The short answer is that plug-in solar is not federally regulated — there is no US law that bans or permits it nationally. Whether you can legally install a balcony or plug-in solar system depends entirely on your state's legislation, your utility's interconnection rules, and (for renters) your lease and local HOA regulations.
As of September 2026, the situation is moving fast. Nine states have signed plug-in solar into law, two more have passed their legislatures and are awaiting governor action, and more than a dozen additional states have active bills. The key legislative pattern is consistent across enacted laws: they establish simplified rules for qualifying plug-in systems, reducing the utility approval and interconnection paperwork that previously blocked adoption.
What "Gray Area" Actually Means
In most of the 30+ states with no specific plug-in solar law, installing a balcony solar panel is not explicitly illegal — but it is not explicitly protected either. The practical situation is that your utility's standard interconnection agreement, which you agreed to when you signed up for electricity, likely prohibits connecting any generation equipment to the grid without approval. A plug-in solar panel technically does this. Most utilities turn a blind eye to systems under 400W. Larger systems are riskier to install without legal protection.
The practical test in gray-area states: if your system is under 400W and you have a standard residential electricity account, you are unlikely to face enforcement action. If you are a renter, check your lease before installing anything — some leases prohibit modifications to electrical systems regardless of state law. The safest path in any gray-area state is to use a system that does not back-feed into the grid (rare) or to wait until your state passes enabling legislation.
What the Laws Actually Require
All nine enacted state laws follow a similar structure. They typically require:
- System size limit — most cap at 1,200W (Colorado is the outlier at 1,920W). Systems above the cap are not covered by the simplified approval pathway.
- Safety certification — systems must use UL-listed components. UL 3700 is the new standard published in December 2025 specifically for plug-in solar. Note: as of August 2026, no complete kit system has received full UL 3700 certification, though the Hoymiles HiFlow Pro microinverter is certified. Standard UL 1741 microinverters satisfy most state laws in the interim.
- Outlet type — compliant systems cannot use standard NEMA 5-15 outlets under UL 3700. They require a compatible outdoor-rated receptacle. Some states (notably Colorado under 395W) exempt small systems from this requirement.
- Notification — some states require you to notify your utility. Maine requires notification for systems over 420W. Others require nothing at all.
HOA and Landlord Rules by State
Colorado, Virginia, and New Jersey have the strongest renter and homeowner protections — their laws explicitly restrict HOA or landlord bans on qualifying plug-in solar systems, though reasonable safety conditions may still be set.
Utah and Maine passed the laws but did not include explicit HOA preemption provisions. HOA rules in these states may still restrict balcony solar — check your CC&Rs.
All other states with laws are silent on HOA rules, meaning your HOA's CC&Rs control. In gray-area states, landlord and HOA permission is strongly recommended before any installation.
What's Coming Next
California and New York have measures awaiting governor action. New Jersey signed the Garden State Balcony Solar Act on September 1, 2026, with the law taking effect six months after enactment. Massachusetts and several other states continue to advance balcony-solar proposals through their legislatures.
Set a Google Alert for "balcony solar law [your state]" and check back here — this page is updated within 24 hours of any legislative action.
Sources: PlugInSolarHub.org State Tracker (Aug 19, 2026) · PlugRule.com 50-State Table (Aug 10, 2026) · Bright Saver Legislation Tracker · Canary Media State Tracker · Prompt Quorum Balcony Solar Legal Analysis (Jul 16, 2026) · ExactSolar Substack State Update (Jun 22, 2026) · Utah HB 340 · Maine LD 1730 · Virginia HB 395 · Colorado HB26-1007 · Maryland HB 1532 · New Hampshire SB 540 · Connecticut HB 5340 · Vermont S.202 · New Jersey S2368 · New York S8512C · California SB 868. This page is for informational purposes only and does not constitute legal advice. Verify current status at your state legislature's official website before installing. Disclaimer · Privacy