Yes, use an engineer, basically you are creating a wind turbine or equivalent type of structure.
Works fine guyed but you need to have enough pole base weight, guy point weight, cables and pole to withstand the stresses. We went 27' height to the top of pole mount then the owner doubled the # of panels and the Uni-Rac aluminum mount cracked, requiring the removal of the whole mess and all sorts of additional bracing and welding at 25' AFG. Obviously, it is not good to field re-engineer, esp. when you do not have a clue as to what you are doing. Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com "Responsible Technologies for Responsible People since 1988" Do not ever believe anything, but seriously trust through action. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay peltz Sent: Tuesday, March 22, 2011 9:03 AM To: RE-wrenches Subject: Re: [RE-wrenches] Tall pole mount HI Holt, I've done a pole as you are describing. It also had a tracker on it. 3 or 4 sections of scaffolding were used to install the equipment, although if better access a lift truck would have been better. And you'll need equipment to move and install the pole. The pole was guided, and sounds like yours in the trees so not a lot of exposed wind loading. Nothing difficult just more: money, time, equipment, and parts. One note, if you are installing a tracker, I might install a ladder and a platform on the pole to make repairing the tracker quicker and easier. jay peltz power On Mar 22, 2011, at 6:13 AM, <hol...@sbcglobal.net> <hol...@sbcglobal.net> wrote: Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace & Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wren ches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrench es.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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