Hydrogen vs. Battery Electric Cars

There is another way to split water  to hydrogen using a thermo-chemical process but it needs at least a 850C cheap heat source and it uses sulfur & iodine reactants that are repeatedly recycled in the process. Very much under development.   https://en.wikipedia.org/wiki/Sulfur%E2%80%93iodine_cycle
Maybe concentrated solar or future generations of molten salt reactors based on Th 232 ->U 233 can reach 850C?.
Good topic for a video Chemistry Girl :).