ROFL at your stuck in 2015 comment, I wish I were!
In 2015, hydrogen was ~$20/kg and trending down to ~$13-16/kg by 2017, with the DOE claiming it to be “about the same cost as gas today” despite the fact that 1 kg H2 is roughly 1 gge, so the costs were about 4x gas costs, and 4x their target of $4/kg at the pump.
Fast forward to today and guess what, that price kept dropping, and it hit the DOE targets!
Just kidding - prices this year are , making the Toyota Mirai one of the highest TCO cars on the market.
Take me back to 2015 when that hydrogen fuel was half the price!