Hydrogen can be generated on-site (and in quite a few cases, that's preferable over filling up elsewhere). So if the efficiency of generating hydrogen is incre

Hydrogen can be generated on-site (and in quite a few cases, that's preferable over filling up elsewhere). So if the efficiency of generating hydrogen is increased, that's a win for endusers no matter if they do it themselves or pump it somewhere from 3rd party. You are correct about the subscription model though.