Maryland residents can start using plug-in balcony solar systems right away under a new state law that allows setups capped at 1,200 watts. Virginia has passed a similar measure, but its version does not take effect until Jan. 1, 2027.
The change matters because it opens a cheaper route into solar energy for people who cannot afford rooftop panels or cannot install them where they live. Mike Tidwell, who has pushed for the policy, said the systems let people with “lesser means” and “lesser control on their living circumstances” produce clean power for themselves.
Balcony solar is not limited to balconies. The panels can be mounted on fences or in backyards, then plugged directly into a standard outlet so homes draw less electricity from the grid. In sunny weather, an 800-watt unit can generate power equivalent to running a refrigerator or some small appliances, and experts say the systems can trim energy bills by 10% to 25%.
The laws also draw a bright line for utilities. Maryland and Virginia now provide clear rules for the devices, and providers cannot ban them outright. In Virginia, landlords will still be allowed to set reasonable limits on size and placement, while Maryland does not include that landlord restriction.
That clarity comes with a safety catch. Some balcony solar systems already for sale are unregulated and lack safety certifications, even as both states now require UL certification or an equivalent standard. Brett Matulis said the new rules should push manufacturers to build in the right protections so homeowners can buy the systems and use them safely.
The market is small in the United States, but it is no novelty overseas. Balcony solar has been common in Europe for years, and Germany alone is estimated to have about four million units installed. In the U.S., the systems now sell for a few hundred dollars to several thousand dollars depending on wattage, and current prices are under $2 per watt, compared with about $2.58 per watt for average rooftop solar.
Still, the real test is what happens next. Virginia must convene a working group and adopt safety standards before its law takes effect, while manufacturers and utilities will have to adjust to a wave of new state-by-state rules. Since Utah passed legislation paving the way for plug-in solar in 2025, lawmakers in 34 states and DC have filed bills to advance the technology, and nine states have now passed legislation of their own.
What is changing now is not just access in two states. It is the start of a broader race to decide whether solar energy can move from rooftops to railings, fences and backyards without losing the safety and utility rules that make the systems credible.
