Here are the other contenders, you can do your own research, however CFU are way ahead with commercialisation,power output,compactness and pretty much all other aspects. With no problems arising with current trials CFUs future looks bright. I am assuming the cost won`t be an issue if the business model ie sell to electricity providers who have more to consider on the cost side than the householder re transmission and infrastructure and balancing peak and off peak loads.
http://www.microchap.info/sofc.htm
Cheers
Going with a buy
CFU Price at posting:
7.0¢ Sentiment: Buy Disclosure: Held