I am looking for some honest projections for the fuel cell market. 
There has been a lot of hype over the past few years as to the
potential for fuel cells, but I would like to sort through the hype to
find some genuine revenue/unit sales projections for the next 10
years.

Within the fuel cell market, there are many applications. I would like
primary focus for this research to be on the fixed power generation
applications.  Second, market projections for mobile (i.e. automotive)
applications would also be helpful.

In addition to the overall market activity, information about specific
activities and projections from individual companies in this space
would be most helpful.  For instance, when are the major players
launching products?  What are their expectations for these products? 
The companies my intial research shows are most active in this space
are United Technologies, Ballard, Acumentrics, FuelCell Energy, Plug
Power, Siemens, Sulzer Hexis, Rolls-Royce, Global Thermoelectric,
McDermott Technologies, and Cummins Power Generation.

As there are many differing projections available, a great answer
would provide a few different viewpoints so that an average can be
developed.

Thank You.