How much that back-side production helps depends a lot on the surrounding surface.

Often called "balcony solar," it offers a cheaper starting point than a traditional rooftop array.

As of this week, Qcells' panels will include solar cells made on site, making it the only company in the U.S. to produce ...

Plug-in solar panels could soon give households a simpler way to generate their own electricity, without paying for a full rooftop solar installation. Instead of a large array of panels fixed to the ...