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<DIV><FONT color=#008000 size=4 face=Arial>Doesn't the additional layer of even
low iron glass block near 7-9% of solar transmission ?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT color=#008000 size=4 face=Arial>Ken Schaal</FONT>-</DIV>
<DIV> </DIV>
<DIV><FONT color=#008000 size=4 face=Arial>CommonWealth Solar</FONT></DIV>
<DIV><FONT color=#008000 size=4 face=Arial></FONT> </DIV>
<DIV> </DIV>
<DIV>--- Original Message ----- </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #008000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=wadleyjk@hotmail.com href="mailto:wadleyjk@hotmail.com">John
Wadley</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, August 16, 2010 12:23
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] The Genie
Lens</DIV>
<DIV><BR></DIV>I've taken a closer look at how the technology works on the
Genie Lens website and I'm not sure the focal length will be much of a factor,
Jim. Here is why. On a traditional Fresnel lens (like a
lighthouse) a point source of light is redirected by the lense into
parallel paths to create a beam in one direction. Here putting the light
source at the focus is critical to making the beams parallel. On the
Genie Lens film, the focal length is from the film to the sun and the parallel
portion is between the film and the solar cell. It would seem that
moving the sun across the sky would only redirect light from another part of
the tempered glass and still hit the solar cell.<BR> <BR>The think the
way this technology really works is it is bending additional light from other
directions than direct-normal and also redirecting light reflected off the
solar cells back into the solar cells. In essense, it is acting like an
optical diode by allowing light to pass mostly one way only.<BR> <BR>The
gains are probably real, but other drawbacks come to mind other than those
already mentioned (warranty, degradation). What happens when it is hit
by hail? I suspect the little optical ridges that a perfectly angled to
bend and redirect light are deformed and essentially block light under a hail
blemish. Also, all those little ridges are bound to be soil
collectors. I think if I were to try this technology, I'd use a system
that already has a 10 year (10%) degradation to see if I could bring it back
to original design production. But I wouldn't do it unless I could cover
it with more tempered glass to protect the surface and prevent additional
soiling.<BR><BR>John Wadley, MSEE, PE<BR>NABCEP Certified Solar PV Installer
(TM)<BR>Wadley Engineering<BR>214-557-3841<BR><BR>> Message: 1<BR>>
Date: Fri, 13 Aug 2010 12:55:27 -0500<BR>> From: "North Texas Renewable
Energy Inc" <ntrei@1scom.net><BR>> To: "RE-wrenches"
<re-wrenches@lists.re-wrenches.org><BR>> Subject: Re: [RE-wrenches]
The Genie Lens<BR>> Message-ID:
<GPEJJFPLCDGEDNGDFOOFCENJCHAA.ntrei@1scom.net><BR>> Content-Type:
text/plain; charset="us-ascii"<BR>> <BR>> Wrenches....<BR>> <BR>>
And with any Fresnel-type lens, the focal length is very critical.
Applying<BR>> the film directly to the cell would be better than sticking a
full sheet<BR>> onto the glass since glass thickness will vary between
module brands.<BR>> <BR>> Jim Duncan<BR>> <BR>> -----Original
Message-----<BR>> From: re-wrenches-bounces@lists.re-wrenches.org<BR>>
[mailto:re-wrenches-bounces@lists.re-wrenches.org]On Behalf Of Joel<BR>>
Davidson<BR>> Sent: Friday, August 13, 2010 11:36 AM<BR>> To:
RE-wrenches<BR>> Subject: Re: [RE-wrenches] The Genie Lens<BR>> <BR>>
<BR>> Wrenches,<BR>> <BR>> Rick Lewandowski (founder of SunWize) and
his team have been making PV<BR>> modules with an optical film. See
http://www.prismsolar.com/ Prism Solar's<BR>> primary advantage is less PV
cell material lowers cost.<BR>> <BR>> How Prism Solar differs from
SolOptics:<BR>> - film is laminated with the cell so it does not get
wet,<BR>> - holographic material is UV stable and is used in
extraterrestrial<BR>> applications,<BR>> - tests have shown PS holograms
degrade less than 0.04% per year compared to<BR>> silicon cells at 0.5-1%
per year,<BR>> - angular and spectral multiplexed holograms result in
cooler running cells<BR>> and useful light down to 0.25 suns.<BR>>
<BR>> Rick has worked several years to get Prism Solar ready for primetime.
See<BR>> their video and live test results and tell me what you
think.<BR>> <BR>> Best regards,<BR>> Joel Davidson<BR>> <BR>>
----- Original Message -----<BR>> From: "Mark Dickson"
<Mark@OasisMontana.com><BR>> To: "'RE-wrenches'"
<re-wrenches@lists.re-wrenches.org><BR>> Sent: Thursday, August 12,
2010 9:43 AM<BR>> Subject: Re: [RE-wrenches] The Genie Lens<BR>>
<BR>> <BR>> > They claim that their film "should" last the 20 year
lifespan of the<BR>> > modules. With most warranties at 25 years and
modules lasting much longer<BR>> > than that, that claim does not do
them much justice. I can't imagine<BR>> > modules will work very well
with a tarnished or degrading film on them.<BR>> > Imagine how pissed a
customer would be trying to peel that crap off after<BR>> > a<BR>>
> few years getting baked in the sun.<BR>> > I am sure the module
manus would love to disqualify any warranty claims<BR>> > that<BR>>
> came back with this stuff on it.<BR>> ><BR>> > Also, they
claim a 4-12.5% increase.<BR>> ><BR>> > Best regards,<BR>>
><BR>> > Mark Dickson,<BR>> > NABCEP Certified Solar PV
Installer T<BR>> > Oasis Montana Inc.<BR>> ><BR>> ><BR>>
> -----Original Message-----<BR>> > From:
re-wrenches-bounces@lists.re-wrenches.org<BR>> >
[mailto:re-wrenches-bounces@lists.re-wrenches.org] On Behalf Of Peter<BR>>
> Parrish<BR>> > Sent: Thursday, August 12, 2010 10:17 AM<BR>>
> To: 'RE-wrenches'<BR>> > Subject: [RE-wrenches] The Genie
Lens<BR>> ><BR>> > Anybody know anything about these
claims?<BR>> ><BR>> > SolOptics, the solar division of Genie Lens,
has created a new lens design<BR>> > that improves solar PV performance
by 12.5 percent. The new thin-film<BR>> > design<BR>> > can be
applied to any PV module, just like a sticker. The new design is<BR>> >
created by the company's ray tracing software that embosses<BR>> >
microstructures<BR>> > onto thin polymer film. That film can then be
applied to solar panels much<BR>> > like tinting film can be applied to
a window. In testing, the<BR>> > microstructures in the lens improved PV
efficiency by 10 to 12.5 percent.<BR>> ><BR>> > I think the claim
of a "lens" is complete hogwash. As for being an<BR>> > anti-reflective
coating, that might work, but reliability would be my<BR>> > concern
(UV, heat, moisture). Think how many tinted car windows you have<BR>> >
seen with blisters all over them?<BR>> ><BR>> > I am posting this
for a client who is a really dedicated solar enthusiast<BR>> > and
occasionally emails me with questions about solar technology.<BR>>
><BR>> > - Peter<BR>> ><BR>> ><BR>> > Peter T.
Parrish, Ph.D., President<BR>> > California Solar Engineering,
Inc.<BR>> > 820 Cynthia Ave., Los Angeles, CA 90065<BR>> > CA Lic.
854779, NABCEP Cert. 031806-26<BR>> >
peter.parrish@calsolareng.com<BR>> > Ph 323-258-8883, Mobile
323-839-6108, Fax 323-258-8885<BR>> ><BR>> ><BR>> ><BR>>
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