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Storing wind-generated energy as gravitational potential energy? - Page 5

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Posted by Neon John on December 8, 2008, 8:52 am
 
wrote:


You might want to check your decimal.  It slipped a notch.  Last time I
checked, 24 volts times 1 kilo-amp-hour is 24 kWh.


WTF is bunded.  Yep, in my basement, sitting on concrete in two rows of 10
batteries in a series/parallel string.  The manufacturer recommends regularly
discharging them to 80%.  That's not a limit but a recommended DOD. Yes, these
are traction batteries and no, they're not standby batteries.  I do take them
down that far every so often because that is the recommended treatment.  In
normal use, I'd be hard pressed to take 'em down 25% before I need to run the
generator for cooking or water heating and thus power the 200 amp charger.

That guy was a total knucklehead, which is why I clipped his URL.

BTW, I have a book here dating from the 20s that instructs one on building
"pasteless batteries" using a process a bit more sophisticated but similar to
that guy's.  this one involves several plates, separated by cedar wood spacers
and formed into battery plates by hooking an Edison lamp in series with the
110 volt DC lighting service.  the Edison lamps were what? 4 watts or
something like that?  Forming took several weeks according to the book.

No energy source is actually renewable in the traditional meaning of the word.
Of course, this has become a religion and like in all religions, common
everyday words get twisted and distorted.

By any rational definition of "renewable", a breeder reactor is the MOST
renewable since it makes more fuel than it consumes.  OH, did I use the word
"rational"?  My bad.

John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com  <-- best little blog on the net!
Tellico Plains, Occupied TN
Serenity: That feeling of knowing that your secretary will never tell either of
your wives.


Posted by Tim Jackson on December 8, 2008, 10:02 am
 
Neon John wrote:


Spill containment.


Tim Jackson

Posted by Andy Burns on December 8, 2008, 10:12 am
 Tim Jackson wrote:


It's not as though the AGM (absorbent glass mat) batteries can spill,
they're common in UPSs

http://en.wikipedia.org/wiki/VRLA#Absorbent_glass_mat_.28AGM.29

Posted by Neon John on December 8, 2008, 6:52 pm
 

Never heard the term.  I love this common language that separates us. :-)

To the OP, noooooo.... My batteries are not bunded.  AGM batteries contain no
liquid and are classified by the DOT and FAA (highway and air authorities
respectively) as non-hazardous.  Even if they were wet cells, I still would
not berm them (what we call it) and I can't think of an installation where
that's been done.  If you've ever seen sulfuric acid and concrete go at each
other, you'd understand why.  They don't just cuddle up and have an idle chat
:-)

John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com  <-- best little blog on the net!
Tellico Plains, Occupied TN
If stupidity hurt then there'd be Aspirin in the salt shakers.


Posted by Huge on December 9, 2008, 10:08 am
 

You say zucchini and I say courgette, you say eggplant and I say aubergine ...

And so on.

--
           I can't sing, I ain't good looking and my legs are thin.
               [email me at huge huge (dot) org <dot> uk]

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