Considering plug-in solar at home? How to know if it's legal in your state - and actually worth it

Home & Office Home Home & Office Energy Considering plug-in solar at home? How to know if it's legal in your state - and actually worth it Here's what you should know if you have plug-in solar on your mind, especially if you're in the US. Written by Maria Diaz, Staff Writer Staff Writer May 25, 2026 at 4:01 a.m. PT Maria Diaz/ZDNET Follow ZDNET:  Add us as a preferred source  on Google. ZDNET's key takeaways Plug-in solar systems are an alternative to large, professionally installed rooftop solar. The US regulatory system for utilities wasn't built for plug-and-play solar setups, so it's taking time for state laws to catch up. Thus far, only Utah has legalized plug-in solar in the US, allowing small systems of up to 1,200w to plug directly into a traditional outlet. Plug-in solar has risen in popularity among sustainability fans in recent years, but the practice isn't yet legal in all of the United States. If you've been thinking about joining the plug-in solar bandwagon, here's what you should know. What is plug-in solar? Plug-in solar systems, also known as balcony solar, are easy, plug-and-play solar panels that include an inverter and small battery. The system connects to a home's standard 120-volt outlet and automatically flows the electricity from the battery to the nearest running appliance. These systems are small and portable, and aren't meant to replace grid electricity or dependency on utility companies. Instead, they generate anywhere between 200W and 1,800W, but are an easy solution to reduce energy costs with an affordable investment. Also: Switch to plug-in solar? My advice after testing the DIY energy tech at home Instead of going on rooftops and requiring professional installation, plug-in solar systems can easily go on a balcony, backyard, or a patio.  "Historically, solar adoption has been tied to homeownership, but that's not a reflection of today's housi