I was next to a hydrogen refuelling station yesterday at a shell station. It basically looks like they produce it on site with electricity and natural gas... th

I was next to a hydrogen refuelling station yesterday at a shell station. It basically looks like they produce it on site with electricity and natural gas... the point is I couldn't order at a drive thru across a parking lot from the thing because it kept making like 15 second long whirlly/screeching pressure sound in some sort of regen cycle.