Since we are still in the AWE domain (at least I yet believe it), let’s think of hydrogen as a gas lighter than air and relatively economical and available by all kinds of industries, rather than as a means of storage.
This is perhaps one of the rare possibilities for lifting conventional wind turbines or with rope-drive transmission (like @Kitewinder Kiwee), if of course this is possible given the difficulty of managing both the aerostat and the suspended turbines.