I didn’t see how the hydrogen is stored - cryogenic or compressed gas?
Ammonia can be manufactured from hydrogen sourced from water, and nitrogen from the air, in an electrically driven synthesis cell. An ammonia-reforming oxide fuel cell can then in turn produce electricity from ammonia as needed.
Ammonia can be effectively stored in a magnesium chloride adsorption device. This is about 10-15 times less volume than either high pressure gas, or cryogenic hydrogen storage systems.
Cryogenic, unlike the hydrogen electric cars from Hyundai, Honda and Toyota. They do say that they will sell compressed hydrogen gas from their hydrogen stations at $3.50 per Kilogram, which is ~$10 less than the present price. But that’s the thing about H2- it will get cheaper as time and tech bets better, not more expensive. And it’s domestic- not a dollar needs to go to some foreign country. H2 will help to make America great again!