In short: Plug-in solar kits stop at 360 watts because that is the most power a standard US wall outlet can safely carry, not a legal limit. Your state may allow far more (1,200 watts or higher), but reaching those caps takes a dedicated circuit and an electrician, not a plug.

In short: A good balcony solar kit is certified for U.S. use, sized to your space and electricity use, fitted with a standard 120-volt plug, and backed by a real warranty. Beyond the hardware, the thing that varies most between sellers is total cost, your energy savings and how transparent they are about it. Here is how to compare your options without the marketing noise. Balcony solar, also called plug-in solar, is finally arriving in the United States, and the number of kit