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When Terrence Dwyer received a knock on his door and a flyer for a solar panel system small enough to fit on his deck, he was quickly sold. Solar systems that plug into regular wall outlets have been popular in Europe for years and are gaining traction in the U.S. for their affordability and simple installation.

At a Glance:

Plug-in solar panels gaining popularity in the U.S. for affordability and ease of installation

Systems can reduce utility bills and carbon footprint without costly rooftop upgrades

Utah law supports adoption by exempting small systems from strict utility rules

Growing demand shows U.S. homeowners want simple, accessible solar options

“We thought absolutely, let’s do this right away,” said Dwyer, who lives in Oakland, California.

These sm

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