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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 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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