Plug-in solar — panels you mount on a balcony or railing and connect to a standard wall outlet — is legal to install everywhere in the United States. What varies by state is whether the law actively protects you from HOA restrictions, utility interference, and code enforcement when you do it.
As of June 2026, four states have dedicated plug-in solar laws. Two major bills are pending governors' signatures. The rest operate in a gray area governed by electrical codes and existing solar rights statutes not written with plug-in systems in mind.
This is the honest picture.
States with Active Laws
Colorado — HB26-1007 (Signed May 7, 2026 / Effective January 1, 2027)
Wattage limit: 1,920W — the highest in the US
Colorado's law is the most permissive in the country. It voids HOA covenants and lease clauses that restrict plug-in solar, prohibits utilities from requiring pre-approval, and exempts sub-391W systems from electrical code compliance requirements. Systems above 391W must carry NRTL certification (UL 3700 or equivalent).
Key caveat: The effective date is January 1, 2027. Legal protections don't apply before then. Also, UL 3700-certified products don't exist yet (expected late 2026), so systems over 391W are currently in a compliance gap.
→ Full Colorado balcony solar guide
Utah — SB 0182 (Signed March 2025)
Wattage limit: 1,200W
Utah was the first state to pass a dedicated plug-in solar law. The bill prohibits HOAs and landlords from banning plug-in solar systems, requires notification to the utility within 30 days of installation, and sets the 1,200W cap. No utility pre-approval is required.
Utah also established a grant program (administered by the Utah Office of Energy Development) that provides up to $400 per system for income-qualified households.
Maine — LD 1931 (Signed April 2026)
Wattage limit: 1,200W
Maine's law closely mirrors Utah's — 1,200W cap, HOA/landlord prohibitions voided, notification instead of approval. The bill passed with broad bipartisan support and focused on extending solar access to the state's large rural renter population.
Maine also requires utilities to provide a free public list of approved plug-in solar devices, which simplifies purchasing decisions for consumers.
Virginia — HB 1984 / SB 1062 (Signed April 2026)
Wattage limit: 1,800W
Virginia's law covers HOA restrictions but takes a narrower approach than Colorado. Landlord protections depend on lease terms and were not as comprehensively addressed. The 1,800W cap is the second-highest after Colorado.
Virginia also requires the State Corporation Commission to develop a simplified registration process — which as of mid-2026 has not yet been finalized.
Pending Bills (Not Yet Law)
New York — SUNNY Act (Passed Legislature, Pending Governor Hochul)
Wattage limit: 1,200W
The SUNNY Act passed both chambers on June 1, 2026. It removes utility interconnection requirements for qualifying systems and establishes a 30-day notification process. ConEd issued a memo supporting the bill — unusual for a utility.
Critical caveat: The SUNNY Act does not require landlords or HOAs to permit plug-in solar. For New York City renters — the primary audience — the most important barrier (building owner consent) remains in place even if Hochul signs.
→ Full New York balcony solar guide
California — SB 868 (Passed Legislature, Pending Governor Newsom)
Wattage limit: No hard cap; UL 3700 or equivalent NRTL certification required
SB 868 (the "Plug and Play Solar Act") passed both chambers in June 2026. It would exempt qualifying plug-in solar devices from CPUC Rule 21 interconnection requirements and classify them as appliances rather than generation facilities.
California currently has no plug-in solar law. Civil Code §714 (the Solar Rights Act) offers some HOA protection but was written for rooftop systems and has untested applicability to condo balconies. Renters are not protected under §714 at all.
→ Full California balcony solar guide (2026)
States with No Specific Law
Most states have no legislation specifically addressing plug-in solar. Installations in these states operate under general electrical codes and, where applicable, existing solar rights statutes.
Texas: Texas Property Code §202.010 prohibits HOAs from banning solar equipment outright but allows appearance-based restrictions. The statute was written for rooftop panels; plug-in systems on balconies or fence-mounted systems fall into a gray area. No utility interconnection exemption exists for plug-in systems.
Florida: HB 683 (June 2025) streamlined solar permitting to five business days and increased penalties for HOA solar restrictions. No plug-in solar-specific provisions exist. Florida's HOA solar protections are moderately strong but, like Texas, were written for rooftop systems.
Arizona: Strong solar rights law (A.R.S. §33-1816 for HOAs, §33-439 for tenants) but silent on plug-in systems specifically. Arizona utilities have not issued guidance on plug-in system interconnection.
Washington, Oregon, Minnesota, Illinois, Massachusetts, New Jersey: No dedicated plug-in solar laws. Advocacy organizations in these states have indicated awareness of legislative movement elsewhere and are tracking potential bills.
International Context: Why the US Is Playing Catch-Up
Germany legalized plug-in solar (Balkonkraftwerke) in 2012. As of mid-2026, there are approximately 1.2 million balcony solar systems installed across Germany — more than the total number of residential solar installations in most US states combined. Germany's current legal framework (Solar Package I, 2024) allows up to 800W inverter output and 2kW of panels per unit, with zero-registration required.
The contrast is worth naming: in Germany, the question is whether to upgrade your Balkonkraftwerk before the next efficiency tier launches. In the US, the question is still whether your HOA will permit a single 400W panel.
The lag is not technical. It's regulatory. The US electrical code framework was not designed to classify small grid-connected devices as appliances rather than power generation facilities, and utilities have historically opposed anything that reduces their authority over connected equipment. The state-by-state law movement is working around this by creating explicit statutory exemptions.
The Safety Standard Gap
Every US state law references some form of device certification, typically "an accredited testing laboratory" or "NRTL certification." The relevant standards are:
UL 3700 — Published January 2026. The first US safety standard written specifically for plug-in solar systems. As of mid-2026, no products have achieved UL 3700 certification. Manufacturers expect to reach market with certified products by Q4 2026.
UL 1741 SA — The existing standard for anti-islanding inverters used in grid-tied solar. Many current plug-in solar products use UL 1741-listed microinverters. These meet the spirit of what state laws require (utility-safe, grid-connected) and are the practical standard while UL 3700 certifications catch up.
Buying guidance: until UL 3700-certified products are available, look for systems using UL 1741-listed microinverters (brands: APsystems, Enphase, Hoymiles). Avoid systems with no NRTL listing — these will not qualify under any state law, and some insurance carriers have begun raising questions about uncertified grid-connected devices.
What to Do Right Now by State
If you're in Colorado: You can install and keep it under 392W for no certification hurdles. The full HOA/utility protections don't kick in until January 2027.
If you're in Utah or Maine: The legal path is clearer than anywhere else. Notify your utility within 30 days, use a UL 1741-listed system, and the HOA/landlord protection is in effect.
If you're in Virginia: HOA protection exists. Confirm the SCC registration process status before installing in utility-regulated territory.
If you're in New York: Wait for Hochul to sign. Then still confirm building consent separately — the SUNNY Act doesn't resolve that barrier.
If you're in California: Wait for Newsom's signature on SB 868. In the meantime, single-family homeowners with an HOA have strong §714 protection; condo owners and renters need board/landlord approval.
If you're anywhere else: Get written landlord or HOA approval before installing. Use a UL 1741-listed system. Zero-export systems reduce utility friction. No state law protects you yet.
How We Track This
This page is updated as bills move through state legislatures. Last updated: June 29, 2026.
State-by-state detail pages: