A question to the fuel cell train people

I plan on installing hemp char-coalizing stations every 10 miles on the rails that lead to coal burning power plants.  Those stations, sending electricity to the trains by air is one of our options.  All stations will be green electric power production power plants equipped with three 900′ vertical wind turbines tied together at the top, built around a 800′ high hemp composite water tower to serve many functions.  My question to you is, how much more efficient is the fuel cell train, to keeping the diesel engine and fuel it with hemp fuel provided by our stations, fuel the engine with hydrogen, or throw away the engine and have the stations supply the electric power?  Top Cat II