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What is a Fuel Cell?


bushman10

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Recently saw an Australian off road trailer add and it had an Airconditioner in it which, together with the microwave and geyser, was driven by a small Fuel cell and there were no batteries.

How does a fuel cell work and why don't we use those in our homes?

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Round trip efficiency of around 40%. So unless you have a good source of hydrogen (byproduct of something else), it's not much good. The only real upside -- if the internet is to be believed -- is better energy density for storage.

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