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Plug-In & Balcony Solar
Panels that bracket onto a railing and plug into an ordinary outlet. No roof, no installer, and it comes with you when you move.
How it works
A plug-in kit is one or two panels, a microinverter, and a lead that ends in a normal plug. The inverter converts panel output to household AC and feeds it into the circuit you plugged into. Anything drawing power in your home uses that first, and pulls the remainder from the grid.
There is no battery and no switching. When the sun is out you are simply buying less electricity.
It offsets, it does not replace. One or two panels covers background daytime draw — fridge, router, standby loads. It will not run a house and no honest seller will tell you otherwise.
Why it is growing so fast
Two reasons. It is the only form of solar available to renters and apartment dwellers, which is a very large group who previously had no option at all. And the regulatory picture is opening up: Utah legalised small plug-in systems outright, and other states are moving.
The legal position
This is the part to sort out before you spend anything. Rules vary by state and by utility. Some places treat a plug-in system like any other generation and want an interconnection agreement; others have carved out an explicit exemption below a certain wattage.
Check locally before buying. Confirm with your utility and your local code official. Nothing here is legal or electrical advice, and the rules are changing month to month right now.
Who sells it
Bright Saver
A California nonprofit selling kits at wholesale cost with a $29 annual membership. Genuinely the cheapest way in, and it pays us nothing.
Craftstrom
Complete 800W and 1200W plug-and-play kits. The most established name selling directly to US buyers.
EcoFlow Stream
Ties panels, storage and app control into one system. Best if you expect to expand later.
Is it worth it?
That depends almost entirely on your electricity rate and how much power you use during daylight. Somebody at home during the day on an expensive tariff does well. Somebody out from eight until six on cheap power does not, because the generation happens while nobody is using anything.