[RE-wrenches] 30-year old PV module

[Drake Chamberlin]

I have a couple of Arco 16-2000 modules, that I examined this 
morning.  These puppies are rigid.  We are racking some Sharp 235 
modules at this time, and we are careful not to flex them.  The 
Sharps have good frames compared to many others.  The 16-2000 modules 
are extremely rigid.  This discussion has increased my appreciation 
of the value of rigid module frames.

At 06:56 PM 5/24/2010, you wrote:
>About half the spec sheets that I see list glass thickness, but only 
>a few companies mention cell thickness unless it is in a press 
>release. For example 
><http://www.pv-tech.org/news/_a/ldk_solar_becomes_largest_wafer_producer_outlines_technology_roadmap/>http://www.pv-tech.org/news/_a/ldk_solar_becomes_largest_wafer_producer_outlines_technology_roadmap/
>
>Even if they do mention cell thickness, it may be for older modules 
>or soon-to-be-released modules and not the modules that you buy.
>
>Some people say that thinner cells are more flexible, that they will 
>bend before they break wjhen encapsulated in the laminate. On the 
>other hand thinner cells are more fragile and break more easily in 
>handling. Micro-fractures look like canyons under a microscope and 
>act like canyons to electron flow.

Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
NABCEP TM  Certified PV Installer
Office - 740-448-7328
Mobile - 740-856-9648  
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