Nice video, my initial reaction aside from the hydrogen and helium being mostly non green gasses nowadays was that the efficiency of PV and battery should be be

Nice video, my initial reaction aside from the hydrogen and helium being mostly non green gasses nowadays was that the efficiency of PV and battery should be better than of a fuel cell. My thought was that operation requires a good day, means sunshine and the energy could be provided by solar cells with a battery for some buffering. This thought was based on the current comparison between efficiency of BEV and H2 fuel cell cars.