![Photovoltaic solar panel installation on house, Fremont, California [image: Shiva Singh]](https://images.hgmsites.net/tmb/photovoltaic-solar-panel-installation-on-house-fremont-california-image-shiva-singh_100615724_t.gif)
Drivers who buy an electric car that plugs into the power grid to recharge the battery often start to consider the source of their energy. A 2012 analysis from California, in the earliest days of modern electric cars, indicated as many as four in 10 electric-car drivers were already using or considering the addition of home solar panels to...