Sanyo 190 shading [RE-wrenches]

[Joel Davidson]

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Kelly,
Thin film is not inherently shade tolerant. Uni-Solar and other modules with bypass diodes for each cell are more shade tolerant than modules with diodes every 18 cells.
Joel Davidson

-----Original Message-----
From: Kelly Keilwitz <kelly at whidbeysunwind.com>
Sent: Jan 21, 2005 4:22 PM
To: RE Wrenches listserve <RE-wrenches at topica.com>
Subject: Sanyo 190 shading [RE-wrenches]

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Wrenches,
Is the Sanyo 190 module more tolerant of shading, because of the thin-film
layer, than single crystaline modules? We can't find any info from the
manufacturer on this.

We have a marine application where the customer wants to maximize energy
density on a pilot house. However, there will be soft shading from
antennaes, and a little hard shading from the superstructure. I'm trying to
weigh the output of the higher density, big modules, vs. a smaller array of
more, smaller modules in parallel given the shading issues.

Thanks,
-Kelly

Kelly Keilwitz, P.E.
Whidbey Sun & Wind
Renewable Energy Systems
986 Wanamaker Rd, Coupeville, WA 98239
ph & fax: 360-678-7131
sunwind at whidbeysunwind.com
www.whidbeysunwind.com
Renewable Energy Now!

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