Environment & Energy

wtmusic

(39,166 posts)

27. Compressed H2 reformed from natural gas is significantly more efficient used in an FCV

Thu Apr 25, 2013, 11:57 PM

Apr 2013

Well-to-wheels, according to Argonne GREET simulation, is 4255 BTU/mile.

A vehicle powered with compressed North American natural gas is 6079 BTU/mile, and an EV powered by California's utility mix is 3520 BTU/mile.

GREET doesn't consider prices but a fuel cell vehicle in 2013 is many times the price of either of the other two.

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New (Flow) Battery Design Could Help Solar and Wind Energy Power the Grid [View all] OKIsItJustMe Apr 2013 OP

Very interesting. A major fallacy in the energy world is that the same technology can BlueStreak Apr 2013 #1

“… Some nitwits have talked about truly hair-brained schemes …” OKIsItJustMe Apr 2013 #2

Why would I want to own an electric car if the power company could BlueStreak Apr 2013 #3

While I’m skeptical of V2G I believe your estimation is off OKIsItJustMe Apr 2013 #4

In that example, I believe they ran the gas engine BlueStreak Apr 2013 #5

I don’t mean to suggest that people should do this themselves OKIsItJustMe Apr 2013 #6

"Drain EVs" dramatically oversimplifies the proposal. FBaggins Apr 2013 #7

Regarding the third area BlueStreak Apr 2013 #8

No... I mean actual supply/demand spikes. FBaggins Apr 2013 #9

V2G efficiency losses are at least 20% wtmusic Apr 2013 #11

Did you read the reply? FBaggins Apr 2013 #12

Or, put another way, it’s about 80% efficient OKIsItJustMe Apr 2013 #15

Do you like green eggs and ham? (Why?) wtmusic Apr 2013 #18

Maybe I don't understand the leveling problem BlueStreak Apr 2013 #14

Agree on V2G, fuel cells have been a few years away for 20 years wtmusic Apr 2013 #10

EVs are way under 1% of the market BlueStreak Apr 2013 #13

Automotive (hydrogen) fuel cells will never happen. wtmusic Apr 2013 #16

They’re already here OKIsItJustMe Apr 2013 #17

They've been "here" for twenty years. wtmusic Apr 2013 #19

No, they”re being assembled now. OKIsItJustMe Apr 2013 #20

They're selling them to fleets wtmusic Apr 2013 #21

Um… perhaps they want an actual clean technology OKIsItJustMe Apr 2013 #22

Compressed H2 reformed from natural gas is significantly more efficient used in an FCV wtmusic Apr 2013 #27

Yeah, I didn’t want to overstate the case OKIsItJustMe Apr 2013 #32

Let's find out. wtmusic Apr 2013 #35

“Apparently the difference has to do with electricity used in the reforming process.” OKIsItJustMe Apr 2013 #36

From a manufacturer who's hyping their FCV and doesn't offer a BEV. wtmusic Apr 2013 #37

Now, why do you suppose he would be irrationally attracted to FCEV’s? OKIsItJustMe Apr 2013 #38

For the same reason VW was attracted to them? wtmusic Apr 2013 #39

I guess we’ll see OKIsItJustMe Apr 2013 #40

In situ Hydrogen generation (talk about a political football) BlueStreak Apr 2013 #24

You could generate your own hydrogen from a solar array wtmusic Apr 2013 #25

That may all be true. What it boils down is that both camps are hoping for a miracle BlueStreak Apr 2013 #26

There are 50,000 people in the U.S. driving cars which you say are not "anywhere close" wtmusic Apr 2013 #28

What do you drive? BlueStreak Apr 2013 #30

The one huge disadvantage of EVs BlueStreak Apr 2013 #29

Recharging is really not a problem. wtmusic Apr 2013 #31

For me, that would work as a SECOND car if it had twice the range BlueStreak Apr 2013 #34

Pressurization may not be the challenge you imagine OKIsItJustMe Apr 2013 #33

Think of the market for ... oldhippie Apr 2013 #23

The name of the team leader might be familiar to some longtime EE readers kristopher Apr 2013 #41