That's cool, using your surplus solar-generated electricity to charge your car.

That's one of the big downsides to any large shift to hybrids that you don't hear much talk about--where is all that electricity going to come from and how will it get to your house? Plus all the associated new problems created by trying to accomodate such a shift. But, if you can generate the power you need for your driving right there, using solar, that avoids many of the downsides, although not all of them.