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Taxoro t1_iveje02 wrote

Hydrogen heating seems kinda shite.

Almost all hydrogen is produced from natural gas or coal. This process removes a good portion of both the available energy, and increases volume thus making transportation harder. And almost all hydrogen produced from fossil fuels don't store the carbon but release it.

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Renewable hydrogen from electrolysis -> heating will have an energy loss of like 60-70%, why not just use electric heaters at that point? Sure you could store hydrogen but thats a pipedream.

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WaitformeBumblebee t1_ivkidrg wrote

I agree, only green H2 from renewables should be considered together with fuel cells that produce waste heat but also electricity to drive heat pumps or supplement the local grid when renewables are short.

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Taxoro t1_ivlexjm wrote

That is a better option for sure. Although storing hydrogen without losing a lot of its energy is difficult. Right now the focus should be on producing green hydrogen for use in fertilizers etc. instead of using dirty hydrogen.

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WaitformeBumblebee t1_ivoxi05 wrote

Yes, just replacing dirty hydrogen will take a very long time and effort. Burning green H2 that could replace gray H2 in chemical processes is criminal at this stage.

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