This is interesting its a new solar cell technology which has recently been developed by a Norwegian company. The company EnSol AS have created a unique patented film which can be coated onto glass and walls to turn them into power generators. The film which they hope to release commercially by 2016 effectively means that you would be able to turn a window into a solar power generator. It is likely to be much cheaper than conventional devices and it is thought the coating could be built into windows and other building materials as part of the manufacturing process. It certainly sounds interesting but I wonder how much more expensive it would be to replace your windows with these. If the price were not a concern I would certainly consider it.
