I have not been able to find a good current thread on this, but maybe there is one? Anyway in the Model S facts section of Tesla's site it says: "If you’re interested in installing a home solar system to charge your Tesla, we recommend working with a local solar installer to develop and install a system that supports your total daily energy demand. Assume average energy usage per mile is approximately 300Wh/mile (188Wh/km). Multiply 300Wh/mile (188Wh/km) by your daily driving distance to estimate your daily vehicle energy consumption." Anyone planning on doing this for their Model S? I know some Roadster owners have created solar set ups to charge their car, but many of these systems were done a while ago. Has anyone got a quote for a system like the one described above recently? How much was the quote for? Anyone with experience with these systems want to venture a guess what it might cost on a site with reasonable southern exposure? I guess it would vary a bit depending on latitude. So as to be most useful to everyone reading this thread please include your state and where you generally reside in it i.e. Northern, Central, Southern.