I did an install in 2007 for a customer in the High Desert just outside of Hesperia, CA. Since he was a General Electric employee at the time, he had access to the GEPV-055 module. We installed 102 of these puppies (three strings of 34 modules each) into a new, flat concrete tile roof. It looked and still does look very sharp (no pun intended). We used a single Fronius IG-5100, and had some problems with the first inverter, but no problems with the inverter since.
Here is the problem. We are getting about 60% of the power out of the PV system that we think we should. I have taken PVA string analyzer measurements on several occasions. The strings fail to develop anywhere near Pmp even when the normal irradiance is fairly high (~700 W/m2). I know how to do a KI/KT/KS calculation. The Isc is okay but at about ½ of Voc, the output power drops considerably. It took me about three months to raise the dead at what’s left of GE Energy, and they told me that GE sold all the IP rights, manufacturing and warranty obligations to Motec. They gave me the email of two nameless Motec employees. I have emailed them on several occasions. The email doesn’t bounce but nonetheless I get no response from my efforts. I talked to David Birka-White, who was the lead litigator on the BP Solar class action lawsuit. But we concluded that the GE product was too low volume to be worth his time. I am now looking into whether or not Motec is incorporated in the US which may give me some leverage. Other that that, I am out of ideas. Has anyone else had problems with this product, and can share information? - Peter Peter T. Parrish California Solar Engineering 1107 Fair Oaks Ave. Ste. 351 South Pasadena, CA 91030 (323) 839-6108 [email protected] _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
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