Did we not heard just 6 months ago EFL was replacing PLUG's hydrogen powered fleet. If I recall, that's exactly what was said because I thought that was terrific news. Can someone dig it up if you know where it is. Possibly a Q report. 

if so, is this possibly just a PR stunt to replace blue or grey H with green H?

I always thought H could be the answer but fuel cells are like nuclear plants. Great base primary consistent supply that require a booster for those high current situations. 

or, are you suggesting the high voltage low current can be stepped down to lower voltage high current to meet demands of a forklift or car acceleration