Solar panels usually come with a 25-year warranty, but they can last 50 years or longer, if you treat them right. Solar panels are expensive, even after a tax credit. But the good news is that they ...

There's no denying the appeal. Walk into any Home Depot or browse online, and DIY solar panel kits promise savings of thousands of dollars compared to professional installation. As electricity bills ...

A new generation of 3D-printed solar cells could let buildings generate power through colorful, semi-transparent windows ...

Scientists have made a breakthrough that could help solar panels run cooler, last longer, and generate more power — without ...