Of course it could.  In fact, that’s precisely what we’ve been hearing since the early 1970s.

The problem is that we’re further from achieving this than we were half a century ago.  That’s because, in the interim:

• Battery technology has made great progress in terms of cost and both energy and power density.

• The hydrogen delivery infrastructure has gone essentially nowhere., while the transmission and distribution of electricity in general, and EV charging stations in particular continues to widen.

• The modes of hydrogen generation (electrolysis and methane reformation) remain grossly inefficient.

• Fuel cells that convert hydrogen into electrical energy are expensive and fragile.

Obviously, there are con artists (see above) who prey on those who don’t understand this.

Could Hydrogen End the Reign of Fossil Fuels?