Richard C. Hoagland of Enterprise Mission commented on a breakthrough in solar cells which use a kind of nano ink. There are major problems with such energy alternatives as wind power and biofuels, and this new type of thin-film solar cell could eventually become very cost effective, he said.April 16th, 2008\n\nhttp://www.enterprisemission.com/\nhttp://www.coasttocoastam.com/shows/2008/04/16.html energy, Solar