Plugin Cars has a post on a solar powered recharge station - The World's First Portable, Self-Contained Solar EV Charging Station
Every so often you come across a “why didn’t I think of that?” idea. Such is the case with Envision Solar’s new EV ARC, which is a portable, stand-alone solar parking space. You don’t need trenching, foundations, building permits or grid connections. If you decide to move the space, all you need is a forklift. Envision has had some good ideas for solar “trees” and “groves” in corporate lots and parking garages. EV ARC is a somewhat logical extension of those products.