CityWave, a 459-foot-long solar canopy, is set to become one of the world’s largest urban rooftop photovoltaic installations ...

Timberline Solar from GAF Energy boasts the world’s first nailable solar shingle as part of a solar roofing system. According ...

Solar panels are expensive, but after a few years, they pay for themselves. Avoid these red flags to protect your investment.

The best new hotels around the world, all vetted and reviewed by Travel + Leisure's expert editors and reporters.