I caught the piece on 60 Minutes about Bloom Energy, and just know watched the videos on the Bloom energy website. They now have many units in the field that are providing power to specific office buildings although I don't see anyone talk about 100% powered by the Bloom energy Servers. These are run from natural gas as well as propane and biofuel. In the videos they mention that the Bloomboxes will store as well as produce electricity. Their hope is to unite the Bloombox with solar collectors that produce electricity in the day, store it in the Bloombox and have it produce electricity when there is no sun.
They do talk about them being cost effective after talking about it being green and carbon footprint reducing. I'd rather see them stress the cost effectiveness, however it is mentioned that if you have one at your office of home you want it clean. A power plant 50 miles away spewing pollutants doesn't bother you like one 50 ft away. I'm skeptic but I hope they really have a usable cost effective technology. If you want to watch the videos skip the first one (Boy with airplane) unless you want to hear Arnold Schwarzenegger. Like to hear your input :-) Mike