I don't know how serious it is, but it appears that Japan has been looking into it too: From Oct. 2013: http://www.wired.co.uk/news/archive/2013-10/02/japan-so

I don't know how serious it is, but it appears that Japan has been looking into it too: From Oct. 2013: http://www.wired.co.uk/news/archive/2013-10/02/japan-solar-energy http://www.wired.co.uk/news/archive/2013-10/02/japan-solar-e... From Apr. 2009: http://phys.org/news172224356.html http://phys.org/news172224356.html