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re: Stated at CERAWeek: Hydrogen adoption will cost Europe, US more than $1 trillion
Posted on 3/18/24 at 1:53 pm to Volvagia
Posted on 3/18/24 at 1:53 pm to Volvagia
quote:
Hilarious thing is that while electrolysis of water is possible, it’s not really energy efficient as a storage medium.
Almost all industrial hydrogen is made in a process using natural gas as a substrate.
There are a lot of Texas wind and solar farms producing H2 and O2 from electrolysis. The H2 is used downstream in the Haber–Bosch process to produce ammonia which is used further downstream for several products, especially fertilizer. This is a good use of wind and solar to make hydrogen IMO. IDK what they are using the O2 for but I'm sure there is a market.
3
Posted on 3/18/24 at 2:01 pm to GumboPot
Oh I know it’s done.
It’s just not widespread because you lose 20% of the energy you put in out of the gate, causing folks looking to produce hydrogen so do with natural gas. Obviously electrolysis has a lower barrier of entry so that’s why you see it at all.
Once you get to the 40% energy loss on top of that even in a fuel cell you start to get to hydrogen not really being a good storage medium for energy.
Better to invest in improved battery techs.
It’s just not widespread because you lose 20% of the energy you put in out of the gate, causing folks looking to produce hydrogen so do with natural gas. Obviously electrolysis has a lower barrier of entry so that’s why you see it at all.
Once you get to the 40% energy loss on top of that even in a fuel cell you start to get to hydrogen not really being a good storage medium for energy.
Better to invest in improved battery techs.
Posted on 3/18/24 at 2:01 pm to GumboPot
quote:
There are a lot of Texas wind and solar farms producing H2 and O2 from electrolysis. The H2 is used downstream in the Haber–Bosch process to produce ammonia which is used further downstream for several products, especially fertilizer. This is a good use of wind and solar to make hydrogen IMO. IDK what they are using the O2 for but I'm sure there is a market.
There's plenty of naturally occurring hydrogen found underground that's just beginning to be tapped.
Posted on 3/19/24 at 1:39 am to GumboPot
Electrolyzers are super expensive. The more economic option as of today, which prob will change, is autothermal reforming or steam methane reforming (ATR or SMR). You start with nat gas convert to hydrogen, then use Haber-Basch to make ammonia. You still get 45V tax credits for this.
Electrolyzers cost about 2-3x more in capex than this ^ process for same Tons per day of H2.
Hopefully the tech becomes cheaper or if naturally occuring reservoirs with Hydrogen can be produced like nat gas, that'd be a plus too for cheaper supply instead of relying on electrolyzers or ATR/SMR to make Hydrogen.
Electrolyzers cost about 2-3x more in capex than this ^ process for same Tons per day of H2.
Hopefully the tech becomes cheaper or if naturally occuring reservoirs with Hydrogen can be produced like nat gas, that'd be a plus too for cheaper supply instead of relying on electrolyzers or ATR/SMR to make Hydrogen.
This post was edited on 3/19/24 at 2:17 am
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