It has a place in heavy industry. But right now green hydrogen is very scarce and expensive. Until that changes, it will be somewhat boutique.

99% of the world's hydrogen comes from natural gas steam reforming. That's why the vibes are so weird, it's a fossil fuel industry distraction

It takes huge energy to produce, store and transport. Just use that energy directly. Calling hydrogen stupid was the only smart thing Elon Musk has ever said.

It can never work, the energy needed to make it is more then energy available from the H. It's like needing 1 barrel of oil to make 3/4 of a barrel of oil.

I'm a proponent of Hydrogen if for no other reason than I find it foolish for the transportation industry to place all of it's eggs in one basket.

I'm glad the ICE hydrogen engines have been coming out. Not because they're directly useful. Outside of an engineering challenge (which is perfectly fine), they have no purpose outside of some racing applications.

I like them because it flags people who obviously have no idea what they're talking about. They like ICEs for what it is. And I do actually get that; from an engineering perspective, there's a lot of fascinating things going on inside there. However, efficiency was already hydrogen's biggest weakness. Fuel cells are 40-60% efficient, and is only one part of the hydrogen chain. You're going to replace that part of a chain with something that has traditionally struggled to get 25% efficiency? Why? You're doubling down on hydrogen's biggest weakness. This is the opposite of min-maxing.

So anyway, if they bring that up as anything other than engineering and racing purposes, they're a moron.

So is airplane fuel. That's the point.

I believe that it burns, but it doesn't explode.

Hindenburg joins the chat. Not only that, also really hard to contain and other not so nice features.

A number of major aerospace companies are working on the concept, so I wouldn't say it's not feasible. But the jury is very much still out.

I thinks it’s more that there is no acceptable solution for aviation yet, so yes there’s room

• batteries will never have sufficient power density
• plant based fuels are unlikely to scale
• hydrogen has technical challenges
• ammonia is dangerous

Every option has significant limitations but we need something to work

The other side of this is if there's a solid state lithium battery breakthrough. That would have both the energy density and safety margins to be usable for even Pacific flights.

By that logic an electric "fuel" station would only need sunlight, and less of it since you don't have to use electricity to convert from water to hydrogen, so that the car can convert hydrogen to electricity.