Doug, That is why I made the comment that their panels tend to be underrated (a good and rare thing). One of the reasons is due to the article that Joel posted a link to earlier (the Japanese govt. hammered them for overrating). The product has not been on the market (or even in existence) long enough to know whether or not it has a major drop off in power down the road. However, it is a large, reputable company, so the risk of buying their product is dramatically less than many other new-style technologies coming to the market. If their product fails, you are likely to be taken care of. That is a lot more than you can say for the majority of newcomers to our industry.
Bill. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Doug Wells Sent: Tuesday, April 14, 2009 5:58 PM To: [email protected] Subject: Re: [RE-wrenches] Sanyo Bi-facial Bill, I am not going to go off about Sanyo modules, especially the bifacial brand. However I will say this. I have installed a lot of residential systems with their panels. I installed a system at a retired engineers home last summer and he is keeping very close records of production. We are commonly seeing production which is at or above nameplate rating ON THE AC SIDE. A 3.6 kW array is producing 3400 to 4,000 watts AC on cold sunny days. This is not the norm in PV production in my opinion. This brings up 2 questions for me 1. Why the hell are very intelligent engineers overloading inverters with DC production. I know the easy answer is Nameplate DC rating for incentive programs. 2. Is the multi-junction Amorphous approach all pumped up the first 5 years and then going to let go in year 18? Thoughts experience? Can't deny the early production in VT. Doug Wells The Solar Specialists Morrisville, VT 05661 (p) 802-223-7014 (c) 802-498-5856 www.thesolarspecialists.com _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
