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How many panels ? ( to run 230 volt sprinkler pump 30 minutes a day?) - Page 43

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Posted by wmbjkREMOVE on July 30, 2008, 6:04 pm
On Wed, 30 Jul 2008 01:08:42 -0700 (PDT), bealiba@gmail.com wrote:

Bzzt bzzt bzzt bzzt buzzt

More correctly, nobody with any common sense, and especially anyone
with an Internet connection they could use to view your previous
"sizing" debacles, would hire you to build this or any other system.

At least you're finally getting closer. Which would be a good thing if
you were an earnest, dim-witted student. The trouble is, you're
pretending to be an expert, and insisting that this and all the
previous efforts were "correct", even though you've spent *weeks*
trying to fix errors that needed pointing out by others, and are
*still* pounding out worse mistakes than the greenest newb, such as 4
2V cells in parallel.

It wouldn't be if there was a moderator. But just because you *can*
write advertisements of your shortcomings, doesn't mean that it's a
good idea to do so. Particularly since by now even you should realize
that an ill-advised reliance on "the formula" is a large part of your
GIGO problem.

Why would anyone want to try it given that even the author can't make
it work?



Posted by Ron Rosenfeld on July 30, 2008, 3:24 am
On Tue, 29 Jul 2008 17:44:28 -0700 (PDT), bealiba@gmail.com wrote:

As seen in my previous post, not only are the formulas as documented in the
spreadsheet inaccurate, but also inaccurate are the user inputs.

But, to repeat:

Note the calculation in B10:

B10:  B6/B9, rounded off = 4

But B6 = 180
    B9 = 238

I guess George thinks 180/238 = 4.  But it is 0.756.

Also note the calculation in B11

B11:  A7 / Battery voltage = 1

    A7 = 12
    voltage of 2AS620 = 2V according to the mfg.

I guess George thinks 12/2 = 1.  But it is 6

George! I didn't know you hired someone to design a system for you, and
then had to throw money at until it started working!

I knew you had to throw money at your system to get it working after your
initial setup, but I thought you had done the initial design yourself.

Posted by bealiba on July 30, 2008, 8:08 am
Never resorted to either.

Posted by Ron Rosenfeld on July 30, 2008, 10:52 am
 On Wed, 30 Jul 2008 01:08:36 -0700 (PDT), bealiba@gmail.com wrote:

Then who is this Tweedledee character that you are referring to that hired
someone to do his system design?

Posted by bealiba on July 30, 2008, 11:23 am

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