From there, you can size your Solar Roof to meet your energy needs by estimating how much it will produce give your available sunlight. What is the difference from Tesla solar panels? The biggest ...

While that's possible, what you'll be able to accomplish with rooftop solar depends a lot on two rather unglamorous technicalities: The size and weight of the panels you can fit on your roof.

The Lightyear One is powered by the sun using 54 square feet of solar panels covering the roof and hood. And Lightyear's 29-year-old CEO thinks his car can change the electric car market.