Attachment 2609We have a 6kw grid tied system. Thus, our utility company (PG&E) is our "battery bank." Previously, our electric bill averaged about $300/mo. Now, averaged over 12 months, our bill is $0, and sometimes they pay us. As the cost of electricity goes up (and it will everywhere over the next many years) our payback will only increase. If we find ways to conserve, I have no doubt we will be able to power a future electric car with our current system. IMHO, people who see solar as "too expensive" are short sighted. That said, I must admit, PG&E has some of the highest rates in the country. If you live where there is lots of hydro power and cheap rates, you are the exception, and that changes the equation.