Smaller, more affordable plug-in solar panels are gaining popularity in the US as an alternative to rooftop systems. These panels, about the size of a door, are easily installed on balconies or decks and offer a cheaper way to harness solar energy. While awareness and utility regulations have previously hindered adoption, a new Utah law streamlining the process and the expiration of federal rooftop solar tax credits are boosting demand. Companies like Bright Saver and Craftstrom are seeing increased sales, although questions remain about long-term cost savings compared to European models. Despite some utility concerns, the plug-in solar market is expected to grow as more states follow Utah's lead.

Prepared by Jonathan Pierce and reviewed by editorial team.