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@lightweight@piefed.iridescent.nz
There are so many great reasons to dismiss the exploration of hydrogen as an energy storage medium that I’m struggling to decide where to start
Yes, I've noticed dunking on this particular tech is one of your special interests ; ) I notice that all of the discourse reproduced in this thread assumes that using hydrogen to power heavy vehicles is a proposed technology. It's not. It's been tested, and proven, right here in Aotearoa;
Which suggests there are workable solutions to problems like metal embrittlement. Just like there are workable solutions to the resource costs, safety risks, storage limits, and various other issues in battery tech. We certainly can't ignore the costs, risks and limits of any given application. But keep in mind, opponents of renewable tech will talk these up at every opportunity, and we need to carefully avoid repeating their talking points uncritically.
Along similar lines, is spruiking hydrogen a useful way for reputation launderers for the fossil fool industry to dunk on battery-electric vehicles? Sure. But there are just as many reasons for industrial players locked into a battery-based path, to dunk on hydrogen. Is promoting the future possibility of green hydrogen a way to sell brown hydrogen as a "transitional" fuel? Again, sure. But that doesn't prove green hydrogen isn't a viable energy use path. All any of this tells us is that we need to put aside any and all claims about whose interests a discourse might serve, and carefully evaluate all renewable tech - both existing and proposed - on its testable, technical merits.