Worksport's Solis sends solar energy to an onboard battery pack for portable power at job sites and campsites.

It’s made in America, and it can be fitted to trucks with or without a factory power retractable tonneau cover.

Adding an energy storage battery to a residential solar panel system typically costs $7,000 to $18,000. Some smaller batteries cost just a few hundred dollars, while premium systems can exceed $30,000 ...

The best solar generator pairs a large-capacity rechargeable power station — a big battery, at heart — with a set of portable solar panels, making for a versatile device that can provide backup power ...