I have taken the opposite approach. Keep in mind that we have sunny winters, so angle makes a real difference; if the system is well designed the gennie only runs a few times in winter during storms.
I strongly recommend pole-top racks, because it gets seasonal adjustment down to a (usually) one-person job that takes 15 minutes twice a year, because the rack is well-balanced over its pivot point. We make it as easy as possible, with seasonal settings marked on the strongback with a center punch. I recommend to homeowners that, unless they run low on charging during summer, they set to winter angle (latitude + 15) around November 10 (halfway between fall and winter) and back to latitude on February 10 (halfway between winter and spring). Don't bother with a summer setting. I like the new DP&W design and specify their racks. I never recommend UniRac poletops. Allan Sindelar [email protected] NABCEP Certified Photovoltaic Installer EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ezra Auerbach Sent: Thursday, August 13, 2009 2:37 PM To: [email protected]; RE-wrenches Subject: Re: [RE-wrenches] Seasonal Adjusters I so totally agree - during the winter there's not enough sun to make a difference where we tilt the modules, and in the summer we dump power anyway so we've set them for a nice spring/fall angle and forgot about them for the last decade of so. The funny part is I spent all kinds of extra dollars on my racking so it could adjust it seasonally and through the day too. Never have done either with this racking simply not worth the trouble. Ezra DragonSun Consulting _______________________________________________ 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
