'A complete failure' Japan's 'fantasy' hydrogen strategy does nothing

Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by SigmundA on Monday January 23, 2023 @12:34PM (#34492063)

>ICE vehicles conquered the world with abysmal efficiencies, they were around 10-15% when they already ruled the roads and the world.

Fossil fuel comes out of the ground with the energy already in it, hydrogen doesn't exist in a free form and the energy must be put into it coming from somewhere else.

Most hydrogen now comes from natural gas at maybe 75-80% efficiency through reforming, then it must be compressed, then it must be burned at similar efficiencies to fossil fuel or used in a fuel cell with slightly better efficiency than ICE.

It's way worse in efficiency than fossil fuels, you could just use the natural gas directly in a combustion engine and be way ahead. Solar/wind/nuclear to electrolysis is even worse, just charge a battery.

Hydrogen is a energy storage mechanism like a battery not a source of energy like fossil fuel.

Look at well to wheel efficiency BEV are far ahead of hydrogen.

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Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by schiffern on Monday January 23, 2023 @02:52PM (#34494027)

Ulf Bossel got it right ~16 years ago. No significant change since then, other than steady improvement in BEVs.

https://phys.org/news/2006-12-hydrogen-economy-doesnt.amp

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Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by _hypx on Tuesday January 24, 2023 @01:26AM (#34500138)

Battery technology has utterly stagnated. There has been basically no changes in energy density in over a decade. All "progress" has been in the form of reduced cost, but even that has ended.

PS: Please don't post some Bloomberg article about this. They are wrong and did not correctly reference the state of battery technology back in 2010.

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