[RE-wrenches] PV water pumping

[Nick Soleil]

Hi Jeff:
    I am familiar with that installation you mentioned, which runs all of the 
buddhist prayer wheels.  We have added an additional 100 KW of PV at that site, 
and at the new temple, Cintimani.  Those Kyocera modules that were installed 
there failed.  I found that about 1/3 of the modules were producing 0-10 Voc, vs 
the 21 Voc specified.  As a result, of the low string voltages,the SMA inverters 
were underperforming significantly or not turning on at all.  Kyocera replaced 
the entire array with new modules, and paid us a fair wage for the trouble.  I 
have spent a couple months of my life working there, which was very peaceful and 
interesting, to say the least.

     Each one of those prayer wheels has over a mile of prayers inscribed on a 
long strip wrapped inside of them.  I think I calculated that their were nearly 
800 of those wheels, spinning continuously.  They say that those wheels send out 
~500 million prayers a day!
Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell:   707-321-2937
Office: 707-789-9537
Fax:    707-769-9037




________________________________
From: Jeff Oldham <starpower4u at juno.com>
To: re-wrenches at lists.re-wrenches.org
Sent: Fri, February 11, 2011 8:51:34 AM
Subject: Re: [RE-wrenches] PV water pumping


Jay is correct about the economics, but sometimes we must live with them as the 
only way to increase daily water production. However when the tracker fails they 
will not be making the daily need anymore and it is far more likely to be left 
dead than even batteries.
 
In developing communities I have often used a "village tracker", a manually 
tracked array that anyone walking by can move to the sun. Along the line of 
Buddhist Prayer Wheels that are kept spinning by passerby's.  As an aside I once 
did a 40kW grid-tied PV system for a temple to offset the load of the countless 
motors spinning their Prayer Wheels (not enough people passing to keep them all 
spinning).
 
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative 
SOLutions

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