Americans turn to plug-in solar for savings

Plug-in solar panels are emerging as a cheaper, simpler way for Americans to cut electricity bills. 

Unlike traditional rooftop systems, these smaller panels can sit on balconies, backyards, or other spaces and connect to a regular wall outlet.

Utah was the first state to legalize the technology last year, followed by nine others, including Colorado, New Jersey and Virginia. Lawmakers in California, New York, Massachusetts and Pennsylvania are also considering similar measures.

The systems can cost a few hundred dollars, far less than conventional rooftop solar, which can cost up to $36,000. Salt Lake City resident Melani Jackson saved about $77 in six months with four panels.

Demand is growing as US residential electricity rates rose 7% in April from a year earlier. Experts also expect power bills to keep increasing.

However, safety remains a hurdle. No plug-in system has received full US certification yet. UL Solutions expects to certify at least one system soon, while experts warn consumers against using uncertified equipment because it could cause fires, electrical damage, or shocks.