The homeless guy presently hassling you for a windshield wash at every stoplight, would be a good start. Him, and a really big bottle of Windex.
Unfortunately it won't happen because for this to technology to be built would mean the end of the Kyoto treaty. Cheap clean electricity = no more fossil fuel 'crisis' = no more dismantling the US economy in favor of third-world redistributionist socialism and the European style punitive taxes. You're stuck with the homeless guy.
Solar power is anything but cheap. It may be "clean" but it is about the most expensive way to generate power there is. This is because solar energy is so dilute.
I have given the calculation zillions of times here, but for example (without the details) you would need 150 square miles of solar cells to supply California's energy needs. If solar cells cost one cent per square centimeter, it would cost $300 billion, not counting the cost of land, maintenance, and homeless guys wiping bird droppings off the panels.
I can give the detailed calcs if you want; I'm just tired of doing it over and over and over...
--Boris