Hi Keith,
You may be able to accomplish what you are seeking with the Lumos' LSX
series frameless modules with the clear backing:
http://www.lumossolar.com/products/LSX
They let through quite a bit of light.
Best,
Jeff
Keith Cronin wrote:
Bill
Appreciate the feedback. One of the questions that I'm seeking to
determine- how much light will filter through the spaces between the
cells to the surface below?
Lets say for someone that wants to grow orchids- they need low light,
as an example.
Wondering how much light is diffused through the panels to be able to
do things like grow orchids and or have filtered light to work?
As an example: Do any of you have irradiance measurements on any
carports that have done bifacials and determined how many watts sq m
are below?
Keith
------------------------------------------------------------------------
*From:* Bill Brooks <billbroo...@yahoo.com>
*To:* 'Keith Cronin' <electrich...@yahoo.com>; 'RE-wrenches'
<re-wrenches@lists.re-wrenches.org>
*Sent:* Tuesday, November 1, 2011 11:44 AM
*Subject:* RE: [RE-wrenches] Bifacial modules
Keith,
This is easy to test. Simple take an irradiance sensor, turn it
upside-down and test the irradiance on the bottom surface of any PV
array. It will vary greatly based on exposure to reflected light and
so on, but it will rarely be above 100 W/m^2. 10% improvement is an
absolute maximum for any bifacial technology, and that is on the high
side. Any claims above 10% are ignoring the physics of sunlight,
reflectance of typical materials, and PV.
Nothing wrong with bi-facials. They are beautiful to look at. I would
buy them based on aesthetics, not on performance.
Bill.
*From:*re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@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
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