[RE-wrenches] Bifacial modules

[Hans Frederickson]

For the Sanyo and Silicon Energy modules I've worked with, it is a very
small amount of light that actually passes through in the gaps between the
cells. You could do a simple ratio calculation by measuring the area of the
gaps and the area of the cells. Just guessing, I would say about 3-4%, if
that. I wouldn't count on getting much daylight under the array except for
what bounces in from underneath. Depending on the height of the array and
reflectivity of nearby surfaces, the reflected light under the array can be
significant. Hope this helps.

 

-Hans

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Keith Cronin
Sent: Tuesday, November 01, 2011 1:04 PM
To: RE-Wrenches
Subject: [RE-wrenches] Bifacial modules

 

Hi

 

Was wondering if any of you have installed bifacial modules and know what
the % of light that comes through to a surface below the modules?

 

Looking for a canopy type of installation/ application and wondered if you
have any #'s?

 

Thank you~

 

Aloha,

Keith

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20111101/bd836576/attachment-0003.html>