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Forum Index : Solar : Fixed, panel allowable overhang
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zaphod Regular Member  Joined: 03/06/2018 Location: United KingdomPosts: 93 |
EDIT, sorry to waste your time, I discovered later in the day the shadow moved higher than I thought making my idea pointless. I did find however that apparently there is an Axitex installation manual giving the required info that is not in the panels specification that is all I had so this may help someone else with the same problem. ORIGINAL Hi All, I have a small array of four panels on my roof each 1640x992x40mm, they are supported by two horizontal rails each secured to the roof timbers with three heavy duty brackets and long screws. My problem is in winter when the sun is low a telephone cable that flies across my property causes a shadow just visible in the picture about 1.5 cells up from the bottom across the entire array causing a fair amount of lost power. I have verified this by weighing down the cable to remove the shadow and the output goes up maybe 10%. I do not want to move the mounting rails as this would entail removing and re-installing all the panels and it was a hard job getting them up there in the first place, I am however considering moving the panels up on the existing rails about 1.5 cells, this would still leave the bottom firmly clamped BUT the top overhang would increase from the present 1.5 cells to ~3 cells. Panels are Axitec AC260P/156-60S I cannot find any information anywhere as to whether this is permissible, does anyone have any ideas/experience they could share please ? 2019-01-09_221029_temp.pdf Cheers Roger 1Kwp DIY PV + Woodburner + Rainwater scavanger :) |
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