Bruixot, I am afraid you are wrong. There is a company in the states Nanosolar Inc.
Quote from them
San Jose, Calif. – June 1, 2012 – Nanosolar Inc. today announced that it has raised $70 million in new capital. The financing will be used to expand production of thin film solar cells and panels, support research and development designed to deliver greater efficiency, and drive faster commercialization of the company’s solar technology.
So I do not think it will be long before its all happening folks
:)