Not so fast!
Wal mart is biggest user of Plug power hydrogen fuel cells. 2 huge distribution centers down the road from me (Wally took over Target) side by side, with 500 cells running, (another 400 broken) in fast paced Dc's. So, as mentioned right here in Fork lift news Oct 4, Wally world decided to go with Electrovaya's drop-in lithium-ion battery at Dc in Toronto Canada. Maybe it's something to do with hundreds of broken HFC's that nobody seems to be able to fix. I saw them with my own eyes, rows of them. Plug power blames wally, wally blames them...in the end there are too many broken cells. So, back to square one, Wal mart will buy 4 million dollars of batteries and hope efficiency will return and less headaches from smoother running lifts.
If they were happy with fuel cells, they would not be buying Electrovaya's lithium ion batteries.