[RE-wrenches] crystalline VS uni-solar

[ASAP POWER! 2]

We have UniSolar on an East face and Kyocera on a West face.   UniSolar
outperforms Kyocera in my opinion, but we will stick to solid crystalline Si
for residential/commercial work for space efficiency and racking/mounting
ease.   Nothing scientific because it's not side-by-side, but the lower
energy early morning to mid-peak sun vs. afternoon peak to dusk contest is
about neck and neck.  16,625kwh (Uni-Solar) vs. 16,893 (Kyocera) this
morning on the monitor totals for both channels/systems.
 
Triple-junction thin-film is awesome compared to 1-j or 2-j thin-film, but
by mid-2009 the market will be full of 1-J thin-film offerings going into
2-J production.  Trying to catch up they are -- to Stan.  Sharp has some
interesting news about their exciting thin-film product for Europe this
morning, but we won't see that here in the US anytime soon apparently.
 
However, the problem for me with UniSolar is that all their claims would be
perfectly ok with me if their one dreamy promise of lower cost per watt also
came true.
 
PD 
  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Geoff
Greenfield
Sent: Friday, October 31, 2008 8:09 AM
To: RE-wrenches
Subject: [RE-wrenches] crystalline VS uni-solar



As a follow up to my uni-solar post (and thanks to all who provided
feedback),  I have a second request:

 

Any references to recent side-by side "shoot-outs" between Unisolar and
conventional crystaline PV?  Scientific studies?  Your own wrench thoughts?

 

I am more and more often encountering confused customers that are
considering unisolar systems at zero-tilt (we are at 40 degrees N), with
plenty of partial shading, after getting a pitch about all sorts of
advantages of Uni-Solar.  I think that this product has it's role and I
occasionally sell it... But I am frustrated when I truly believe I can
deliver a better net energy production with a tilted crystalline solution
(avoiding the shaded areas).  


For a brighter energy future,

Geoff Greenfield
Founder and CEO
Third Sun Solar & Wind Power Ltd.
340 West State Street, Unit 25
Athens, OH 45701

740.597.3111     Fax 740.597.1548
www.Third-Sun.com

Clean Energy - Expertly Installed



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