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Environment & Energy

leveymg

(36,418 posts)

19. Is systems analysis catching on at DU? ;-)

Reply to OKIsItJustMe (Reply #17)

Tue May 21, 2013, 06:11 PM

May 2013

Reading all the estimates for competing technologies is often a study in Find Waldo, the Missing Variable. So much of the stuff posted here on energy issues is advocacy, and not really particularly good advocacy.

But, we keep trying.

(I won't tattle if you go over - I think the 4 para liimit applies to the OP, anyway, not responses broken up over the course of a thread).

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Highlight:

Liquefied Air Could Power Cars and Store Energy from Sun and Wind [View all] OKIsItJustMe May 2013 OP

How much energy does it take to cool nitrogen down to -200 degrees and keep it there? leveymg May 2013 #1

Gosh! I bet they never thought of that! OKIsItJustMe May 2013 #2

Just try answering the question, you posted the OP. leveymg May 2013 #3

Snark attack, eh? OKIsItJustMe May 2013 #6

An entirely appropriate question, my friend. longship May 2013 #7

Did that strike as a serious inquiry? OKIsItJustMe May 2013 #10

More snark? Really!? longship May 2013 #12

We're used to people who have a somewhat better knowledge base... kristopher May 2013 #13

I guess you missed my point OKIsItJustMe May 2013 #14

Perhaps investing a few seconds to read the article will answer your questions OKIsItJustMe May 2013 #11

That doesn't answer the question: how much to chill down to -200 degrees? leveymg May 2013 #15

The real question is not how much energy it takes to chill it OKIsItJustMe May 2013 #17

Is systems analysis catching on at DU? ;-) leveymg May 2013 #19

Less than drilling for/refining/shipping fossil fuels. silverweb May 2013 #4

50-60% Efficient tinrobot May 2013 #5

Any method of storage is “less efficient than using the power directly” OKIsItJustMe May 2013 #8

And that almost always requires an application specific evaluation. nt kristopher May 2013 #9

I think there's something to this idea htuttle May 2013 #16

There's quite a variety of thermal storage technologies. kristopher May 2013 #18