Is balcony solar legal in the US — and how do I check my state?
Solar basics Updated 2026-08-02
There is no federal answer, and no state where a plug-in solar array is simply legal or illegal. Four separate authorities each have a say and a setup is only lawful where all four allow it: your state’s law, your electric utility’s interconnection rules, the electrical code your local building department has adopted, and — if you rent or belong to an HOA — your lease or covenants.
A growing number of states have now written a statute specifically for plug-in solar — eight of them when we last checked, on 2026-08-02, from Utah in 2025 through New Hampshire this summer. In the other forty-two the answer is still assembled from those four authorities one at a time, and even in the eight a statute settles one of them and leaves the rest where they were.
Policy content, and what its date means
Nothing on this page states what is permitted at your address. Legislation in this area is moving monthly; the dated items below are wording we checked, not an outcome we promise.
Why “is it legal” is four questions
- Your state’s statute. Most states still have none that names plug-in solar, and where none exists a cord-connected generator is exempted from nothing.
- Your utility’s interconnection rules. The document that actually stops projects — and a public one: it sets what may be connected behind your meter.
- The electrical code your jurisdiction has adopted. Editions differ state by state and city by city, so what binds you is what your building department enforces, not the newest one published.
- Your lease or HOA covenants. A state exemption instructs the utility and the code official; it does not rewrite a private contract. Most often skipped, most often binding for the people balcony solar is aimed at.
Why it is regulated at all
Two properties make a plug-in array different from an appliance. First, it feeds power backwards into a branch circuit, and the breaker protecting that circuit cannot see current arriving from the far end — so the conductor can carry more than the breaker is sized for, unnoticed. Second, a grid-tied inverter has to stop exporting almost immediately when the grid goes down, or it energises a line a utility crew has every reason to believe is dead. That behaviour, anti-islanding, is what listing standards test for. Every rule here is downstream of those two facts, which is why "it is only a plug" never satisfies an inspector.
What a jurisdiction limit looks like on a real product
A restriction the manufacturer states itself
One record in our library carries a sales restriction written by the brand, naming the statute it follows. Read it against the eight statutes: the wording we recorded still names a single state. A sales policy trails the law, so "can I buy it here" and "may I install it here" do not move together.
The restriction is on sale and plug-and-play installation, and the brand states that compliance remains yours. Evidence of how the market reads the law, not a statement about your address.
The manufacturer's own store footnote names Utah H.B. 340 Solar Power Amendments. It is a sales-and-installation restriction on the product, not a shipping preference — which is why the record page shows no buy button.
See the record →Official specverified 2026-08-01station record · geo restriction
How to check your own state, in the order that answers fastest
The four documents, and where they live
Work down this list and stop at the first "no". Most people get their answer at step one, because the utility rule is written down.
Search your utility’s site for "interconnection" or "distributed generation": the application threshold, the required equipment listing, and whether a cord-connected system is addressed at all. Municipal and co-op utilities publish these too, and often differ from the utility next door.
The tariff your utility filed is on the commission’s docket, and any change to it is argued there. Search that site for your utility’s name plus "interconnection" — also where an open rulemaking shows up.
Search the current and previous session for "plug-in solar", "balcony solar" and "portable solar". Read the enrolled text, not a news summary: these bills exempt systems below a ceiling, subject to conditions, and both move during amendment.
Ask which edition of the electrical code is adopted and whether a permit or inspection is required for a cord-connected source. A phone call, and jurisdiction-specific in a way no website can generalise.
Read the clauses on attachments to the building, alterations, and anything visible from outside. A statute exempting you from a utility process does not override them.
The statutes passed so far, by bill number
Eight states, each checked against its own official page
Each row was checked on 2026-08-02 against the legislature’s or the governor’s own page, not against a tracker. All eight define a small plug-in system and exempt it from a process it would otherwise face. We restate no bill’s wattage ceiling or conditions: those live in the enrolled text, they move with amendment, and a number quoted out of one reads as permission.
The first, and the one EcoFlow cites in the restriction above. Signed 2025-03-25, per the Governor’s list of signed bills.
Open the source →Signed 2026-04-06. The status page carries the committee history.
Open the source →Chaptered in the 2026 session. Read the chapter text, not the introduced bill.
Open the source →Approved 2026-05-12. What second-hand lists get wrong: the standalone Affordable Solar Act died in committee, and the plug-in provision arrived inside this larger utility act.
Open the source →Signed 2026-05-07. It also puts obligations on the utilities.
Open the source →Signed 2026-06-04. Plug-in solar is one section of a broad generation act.
Open the source →Signed 2026-06-16, per the Governor’s announcement of that day’s actions.
Open the source →Announced as signed in the Governor’s release of 2026-07-02. Secondary write-ups give an earlier date; we date this row from the announcement.
Open the source →Bills are moving in far more states than eight, and legislator networks publish trackers of them. Introduction is not enactment, and a tracker is itself a dated document that can lag a signature by weeks. Use one to find a bill number, then read that bill on your legislature’s own site.
What UL 3700 changed about checking a product
Until recently no North American safety standard was written for this case, which left the equipment question unanswerable in the terms a code official uses. That gap closed on 2025-12-11, when UL Standards & Engagement published UL 3700, an outline of investigation for interactive plug-in PV equipment and systems. The first product claiming certification to it, a plug-in microinverter, was announced by its manufacturer on 2026-07-15.