The Tesla Model Y may be the world's best-selling electric vehicle but the owner of one example in the U.S. has decided that he can make it that much better by developing an expansion solar roof array ...

Solar unlocks free energy from the sun, but it isn't as simple as "buy panels, get free electricity." ...

In brief: Solar-powered cars are still not practical at full scale. Panels are cheaper and more efficient than they used to be, but they do not generate enough energy to move a standard vehicle over ...