Environment & Energy

BlueStreak

(8,377 posts)

14. Maybe I don't understand the leveling problem

Thu Apr 25, 2013, 02:14 PM

Apr 2013

All household appliances can run happily within a band of voltage from something like 105V to 125V. Around 105-108 some UPSes start to cycle off and on. That really is a huge band.

We have all heard about the "Super Bowl flush" phenomenon where water pressure drops right at halftime of the Super Bowl. I don't know that we ever see such a simultaneous behavior with electricity.

It this a solution looking for a problem?

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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