Nissan will showcase the roof-mounted solar system on the Sakura, Japan’s top-selling EV, next week. The “Ao-Solar Extender,” Nissan claims, can generate enough solar energy to power up to 3,000 km, ...

Google is hoping that some good old-fashioned peer pressure will push more people to embrace solar energy. Project Sunroof, the search giant's solar panel mapping tool and calculator, is adding a nosy ...