An electric tractor that’s entirely powered by the sun could boost crop yields for farmers in sub-Saharan Africa and in doing ...

Jason Chang didn't set out to solve a global energy problem. He just wanted to stop adjusting his family's solar-powered ...

Thirty is the new 20. Well, at least maybe in the solar panel world. That's because a study of six, three-decade-old arrays in Switzerland found them to still be working well, retaining more than 80% ...