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How many panels ? ( to run 230 volt sprinkler pump 30 minutes a day?) - Page 12

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Posted by wmbjkREMOVE on July 14, 2008, 12:13 am
 
On Sun, 13 Jul 2008 18:25:00 -0500, "Duane C. Johnson"


You must be the only one.  :-)  He started off in this thread by
writing (about 50W modules) "14 panels in series to give you 238V @ 3A

intended to distract from the initial mistakes, have only made things
worse. So at this point I for one wouldn't be surprised to see him
wearing his shoes on the wrong feet and calling himself a Bunyin
Cunsultint.  :-)

Wayne

Posted by bealiba on July 14, 2008, 12:21 am
 

Yeah, yeah, yeah. I do know it. But then Tweedledee needs to be kept
busy so I help him achieve busyness. He has learned more about solar
in the last two weeks than he ever learned in the last 10 years.

As you say "17 volts is what they produce when not connected to a
load" which is not what they produce under load. Panels also seldom
operate at 25C or 1000Wm2. More often than not, much hotter and with a
lot less than 1000Wm2.

And unless you want to prove that the formula for system sizing is
incorrect the point has been made.

Thank you for your insight.

George


         ===


Posted by wmbjkREMOVE on July 14, 2008, 12:52 am
 On Sun, 13 Jul 2008 17:21:54 -0700 (PDT), bealiba@gmail.com wrote:


If you know this stuff, then why do you constantly need correcting?


Oh, I see, it's somehow not your fault! What a shocker.


Oh sure, he corrects *your* idiotic 154 panel recommendation, yet it's
he who needs correction. In fact, he's so frequently wrong that there
are 2 web sites making fun of him,
http://www.citlink.net/~wmbjk/tbfduwisdumb.htm  and
http://www.lowexpecations.com/ . Oh wait, those are about *you*!


No, that's what *you* wrote, nitwit. Try to keep up, Duane wrote that
"Open circuit voltage of most 12V silicon panels, with 36 cells, is
about 21V. Others may be higher". It appears that you don't know the
difference between MPP and OC, which would explain why you've never
recommended or even mentioned MPPT controllers.


So what?


The only point that's been made here is that you're not smart enough
to quit foolishly trying to write your way out of holes that you've
written yourself into.


Now wait a darned minute! Pretty much everybody here has provided you
more "insight" than Duane. Where is our thanks?

Wayne

Posted by bealiba on July 14, 2008, 3:21 am
 On Jul 14, 10:52 am, wmbjkREM...@citlink.net wrote:

him,http://www.citlink.net/~wmbjk/tbfduwisdumb.htmandhttp://www.lowexpecations.com/ .
Oh wait, those are about *you*!


Tweedledum wants thanks for his bucket of shit. Thank you Tweedledum,
every bit of street Theater needs a clown, keep up the good work.

Posted by Ron Rosenfeld on July 12, 2008, 6:23 pm
 On Sat, 12 Jul 2008 06:29:54 -0700 (PDT), bealiba@gmail.com wrote:


Here we are. The bottom line:

 George Ghio, the "system designer" expects "you" to find the data needed.

In other words, George won't supply it, and if you can't do it yourself,
don't call him!  

(If you can do it yourself, you wouldn't want to call him either).
--ron

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