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tripodal t1_j2d3bxx wrote

Reply to comment by grundar in Green Hydrogen - Not The Fuel Of The Future by Realistic-Plant3957

It will always be cheaper to make hydrogen from methane than electricity; until the entire grid is renewable.

Then it will still be cheaper because some fraction of the energy required can come from the methane.

The efficiency of electrolysis is dependent on the quality of the equipment and water. Fresh water costs more than oil and that will not change anytime soon.

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FeatheryBallOfFluff t1_j2d61ay wrote

They can already make hydrogen from seawater

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tripodal t1_j2fwvr1 wrote

They can but it’s difficult and requires enormous amounts of consumables as seawater destroys everything it touches.

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grundar t1_j2fpeo4 wrote

> Fresh water costs more than oil and that will not change anytime soon.

Even water from the tap is over 100x cheaper than oil.

For example, Los Angeles homes pay ~$10/hcf; 1 hcf = 748gal, so that's about 1.3c per gallon for tapwater.

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