Submission + - Start-Up With Solar Energy Cheaper Than Coal? (nytimes.com)
Sergeant Pepper writes: Nanosolar, a heavily financed Silicon Valley start-up whose backers include Google's co-founders, plans to announce Tuesday that it has begun selling its innovative solar panels which are made using a device very much like an ink-jet printer. It lays down the components of a photovoltaic cell onto a thin sheet of aluminum that is thinner, lighter, and much less fragile than older silicon cells and will cost about $2 per watt while, according to the Department of Energy, building a new coal plant costs about $2.1 a watt, plus the cost of fuel and emissions.