[ZeroGravitas]

Blue Hydrogen seems to have mostly died for economic reasons, Gray Hydrogen sadly is still being produced, though perhaps not for much longer. Blue hydrogen was mostly used as a 'jedi hand wave' to keep the Gray Hydrogen going.

Also, we really need to switch from saying "It can use spare renewable energy" to "the renewable energy built to power it can, in times of need, be directed to the grid instead, replacing peaker plants".

Same thing essentially but just 10/90 vs 90/10 on how much is used for the new thing, and how much goes to the grid for traditional uses.