Will #GreenHydrogen be a saviour ? Is this a bubble ?
94 million tonnes of grey and black hydrogen made from unabated natural gas and coal are produced each year, emitting 830 million tonnes of carbon. f#cksSakes
Just replacing this dirty hydrogen โ used mainly in chemicals production and oil refining โ with green H2 made from renewable energy would require 143% of all the wind and solar installed globally to date
Add in the other sectors that would probably require green hydrogen or its derivatives to fully decarbonise, such as shipping, steel and long-duration energy storage, and it would require five times all the existing wind and solar installations
And this doesnโt even consider two things
1) the cycle inefficiency of going from electricity to [green] hydrogen to electricity, versus [just] electricity directly
2) Transportation of Hydrogen requires a -165deg Cooling system
1) the cycle inefficiency of going from electricity to [green] hydrogen to electricity, versus [just] electricity directly
2) Transportation of Hydrogen requires a -165deg Cooling system
the cost and difficultyโฆ [the need to replace] every single [gas-fired] appliance, checking every single pipe...this is the challenge for greeen hydrogen
The volumetric energy density of hydrogen is so low that it would be like shipping expanded polystyrene. There is today just 1 ship in the world that can transport Liquid hydrogen.
The Only Viable option is to convert Hydrogen to ammonia
The Only Viable option is to convert Hydrogen to ammonia
If you think any business, any value chain that goes from electricity to hydrogen to ammonia, to liquefying and shipping it, to expanding it, to then generating electricity โ with 22% cycle efficiency,
and then the people using that [power] are supposed to compete with the people using electricity at the source country
Remember at the end of the day, if EVs are cheaper, people will buy EVs even if Hydrogen Vehicles are available simply coz EVs are more more dependable and cheaper
@rattibha unroll
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