I seem to remember that you can’t even pump hydrogen through existing natural gas infrastructure because the smaller hydrogen molecules are more prone to leaking. I would imagine the equipment at a plant has a similar problem and combine that with lower efficiency from burning a fuel that the plant wasn’t designed for, and the abysmal efficiency from converting electric energy to hydrogen and it seems like pure snake oil.

Edit: the problem I am remembering is that hydrogen actually degrades the metals used in pipelines (https://www.hollandsentinel.com/story/opinion/columns/2021/0...) so I don’t see how any of this infrastructure is useful at all for hydrogen.