Perhaps we are becoming to hung up on the need to demonstrate the ucg concept. Others are showing the way. Not just the proposed 300MW plant in Canada but also China and now Mongolia. I don't see any reference to small scale pilot plants and I would not have thought that cnx's technology was that different. Mainly the software tools used to model the geohydrology???
Cheers
Temp
http://m.technologyreview.com/energy/37999/