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Environment & Energy

progree

(11,463 posts)

7. What I'm talking about is if fossil fuels are used to produce the hydrogen

Reply to Think. Again. (Reply #6)

Mon Nov 27, 2023, 06:34 PM

Nov 2023

or partly used e.g. hydrogen is produced using electricity from a grid where fossil fuels supplement wind and energy (true of all but the most minor grids).

and the whole lifecycle thing including end-use still comes out favoring hydrogen and using fuel cell cars as far as greenhouse gas emissions, compared to drilling for oil, refining, and burning in an inefficient gasoline ICE car.

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Curious about Hydrogen Advancements?... [View all] Think. Again. Nov 2023 OP

Seems good as long as the hydrogen produced yields more energy... brush Nov 2023 #1

Unfortunately... Think. Again. Nov 2023 #2

Thanks for your post. Hydrogen produced by green energy sources... brush Nov 2023 #3

Yep... Think. Again. Nov 2023 #5

The end user efficiency also matters. E.g. fuel cells are about 50% IIRC, gasoline ICE engines less than half that progree Nov 2023 #4

I've hear that debate before... Think. Again. Nov 2023 #6

What I'm talking about is if fossil fuels are used to produce the hydrogen progree Nov 2023 #7

I think that's another false argument... Think. Again. Nov 2023 #8

No, reducing fossil fuel use and reducing greenhouse gas emissions is not a "false argument" progree Nov 2023 #9

I did not say that... Think. Again. Nov 2023 #10

I'm just trying to get the point across that *IF* using dirty or partly dirty hydrogen actually reduces fossil fuel progree Nov 2023 #11

Okay, sorry if I misread you.... Think. Again. Nov 2023 #12

Durable, inexpensive electrocatalyst generates clean hydrogen and oxygen from water Jim__ Nov 2023 #13

Thanks! Think. Again. Nov 2023 #14