The last word I read about solar cells from Australia was about some sort of paint like substance used to coat plain glass with connections to the substance that created electricity from exposure to the sun. To the best of my recollection or the article, the process does not give as an efficient production of electricity as other solar cells, but its production costs are a whole lot cheaper. The article was many years ago, and I am willing to bet there are newer possibilities on the horizon.

Bountyhunter