goatchze said:

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Keller6Ag91 said:

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AgBQ-00 said:

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Yes have not watched this video but they are bringing it to market quick!!

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THIS is fascinating. Renewable Hydrogen coming from cow manure. This would create an amazingly sustainable supply chain for both beef and hydrogen. The Japanese appear to be leading to way on this tech.

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If you already have methane, why not just compress and use it as a fuel? Going from biomass>methane>hydrogen is silly.

So let's say you're not going to combust the H2, but instead use it in a fuel cell like the PEM fuel cell mentioned in the video. This is just the reverse of the PEM electrolysis unit I mentioned in an earlier post.

In a H2 fuel cell car, the fuel cell basically replaced the batters of a BEV. So let's do some basic math.

A Tesla uses about 34kWh of electricity to get you 100 miles.
1kg of H2 using PEM technology will produce around 50kWh of electricity.

Therefore, 1kg of H2 will move you around 150 miles.

Sounds good, right?

But remember, that 1 kg of H2 at high pressure is 50 gallons. So that's around 3 miles to the gallon.

So this technology suffers from the same issue that BEVs do in terms of range. Its advantage is that the car can be refueled more rapidly, but you're still going to be stopping. A lot.

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