> Hydrogen electrolysis is inefficient Hydrogen production is the real elephant in the room here. The inconvenient truth is nearly all of the hydrogen produced

> Hydrogen electrolysis is inefficient Hydrogen production is the real elephant in the room here. The inconvenient truth is nearly all of the hydrogen produced at any scale is made by steam reforming natural gas. Electrolysis is great for testing things out in a lab, but using electricity to make hydrogen which is then used to make electricity is a much less efficient process than taking the elecricity you already have and storing it in a battery. Direct solar splitting looks promising, but the tech we need (described here [1]) is still in its infancy, plus it uses the super-expensive easily-fouled platinum catalyst that anyone who's worked on PEM cells knows and loves. [1]: https://www.pv-magazine.com/2021/02/04/novel-catalyst-produces-green-hydrogen-from-seawater-via-solar/ https://www.pv-magazine.com/2021/02/04/novel-catalyst-produc...