As mentioned on another thread, I’m still investigating the economics and practicality of PV EV. PhotoVoltaic Electric Vehicle. Perhaps eventually combining a grid tie solar system to partially or completely charge an electric car. Solar net metering tariffs allow you to get credit for power you generate, offsetting additional usage for nighttime car charging.
Someone who has already done it.. All of their power is solar (house and car) and they net positive to the grid. http://www.solarwarrior.com/
I thought I published this link somewhere on this site previously…