Environment & Energy

jmowreader

(53,165 posts)

7. I know, I know, I know!

Sun Oct 25, 2015, 11:48 PM

Oct 2015

God DAMN son! It takes roughly 150 percent as much energy to break hydrogen's bonds with other elements (being a highly-reactive species, hydrogen grabs on to the first atom it finds and it will not let loose without a LOT of energy) as you'll ever get by using the shit. Add to that the exceptionally low density of hydrogen (meaning you need a LOT of cubic feet of H2 to get to the same place a little bit of petroleum will), and one of two technologies - natural gas fuel cells and really huge batteries - look better and better.

If hydrogen is just another way to use electricity, why not just use electricity directly?

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Hydrogen Fuel Cells Are Becoming Too Big to Ignore [View all] nationalize the fed Oct 2015 OP

As long as there is a clean energy source to generate the hydrogen. longship Oct 2015 #1

While many Americans nitpick nationalize the fed Oct 2015 #2

Thermodynamics 101. longship Oct 2015 #4

Very little of the hydrogen used in the US comes from water jmowreader Oct 2015 #3

Regardless of the source it always takes more energy to generate H2. longship Oct 2015 #5

I don't give a fuck how it is generated, the 2nd law of thermodynamics still applies. longship Oct 2015 #6

I know, I know, I know! jmowreader Oct 2015 #7

Well, one could use it for energy storage. longship Oct 2015 #8

The only thing I can think of is to do as the utilities do: compressed air or water storage jmowreader Oct 2015 #10

I wonder if flow battery cars might be a good compromise solution. StevieM Oct 2015 #9

More hydrogen hooey? kristopher Oct 2015 #11