In a pinch you could use butyl rubber sealant tape under the cap strips.Never gets hard. Would flow with expansion and contraction.
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Bifacial solar panel pergola
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Do you by any chance know where you can buy these products?
You call the phone number on the brochure you linked to would be easiest method. google is a waste of time when you can talk to a real human.Last edited by khanh dam; 08-20-2019, 06:51 AM.Comment
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Originally posted by khanh dam View Postinteresting gasket product! It is nice to see bifacial prices dropping they used to be 200 to 300% more than standard panels, now they are only about 20% moreComment
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I wonder what kind of power a vertical bifacial East West facing wall would have? vs a standard solar panel facing due south?Comment
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Originally posted by khanh dam View PostI wonder what kind of power a vertical bifacial East West facing wall would have? vs a standard solar panel facing due south?
I'd love to try it...but I don't think that'd fit in the back yard well
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Originally posted by khanh dam View PostI wonder what kind of power a vertical bifacial East West facing wall would have? vs a standard solar panel facing due south?
After that, three or so PVWatts runs, 1 vertical east, 1 vertical west and 1 at the south array's tilt will provide an est. for rough comparison. The E - W bifacial total will be overestimated because of the elevated operating temp. of the bifacial panel, but it'll probably be a decent 1st approx.
Or, for more info on basic work relating to bifacial solar applications, see the early work of Shuman at Tacony, PA in the late 19th century. Those early designs used side planar booster mirrors with 2 sided thermal collectors in an E-W axis configuration. Later, more publicized sized versions used parabolic throughs that were shipped to Egypt in 1911 for a solar powered water pumping enterprise. There's not much new under the sun.Comment
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Originally posted by J.P.M. View Post
I'd think that will largely depend on the tilt of the south facing wall.
After that, three or so PVWatts runs, 1 vertical east, 1 vertical west and 1 at the south array's tilt will provide an est. for rough comparison. The E - W bifacial total will be overestimated because of the elevated operating temp. of the bifacial panel, but it'll probably be a decent 1st approx.
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Originally posted by jtc331 View Post
29609.Comment
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Originally posted by jtc331 View PostI've been researching solar pergolas as much as possible, and there are quite a few examples online. The concept at a basic level seems pretty simple and very intriguing, and even has some side benefits (like being able to count the cost of the pergola itself for tax credit purposes since it's effectively serving as the racking for a ground-mount solar array).
The one thing I don't feel like I've fully figured out yet though is how people design for rain. Many of the pictures I've seen would seem to obviously imply a structure that's meant to have no water leaking through the top (though it's an outdoor structure, so it's not at the same critical level as it would be on a home roof, for example). Several companies doing custom design even explicitly call out the "roof" being weatherproof.
The basic overall idea is using bifacial solar panels on top of a "trellis style" (for lack of a better term; i.e., not something with a traditional roof) wooden pergola structure that would serve dual purpose as both solar generation as well as some shade protection (though the bifacial panels let in some light) and also some cover from precipitation.
I suppose the solution might be different between standard framed and frameless panels, and I've been contemplating anything ranging from:- Using some kind of channel system to act as a "gutter" underneath each panel intersection, to
- Using a UV rated weatherproofing tape to bridge from the panel to the structure, to
- Using roof-grade rubber to act as a buffer between the panel (either on the side or on the bottom) and the structure, and rely on the clamping to create a seal with that rubber.
Does anyone have any ideas on what might work or experience on this kind of project?
I too am looking to build a solar bifacial patio from the ground up but am having trouble with planning and finding the appropriate infrastructure/equipment.
Have you made any progress as I think we have the same vision/plan?
Here's any idea of what I'm going for taken from Lumos solar's website.
capture.pdfComment
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did you ever make your pergola? Supercharger619 you can get all the aluminum from this company:
007 - Architectural 07-14-14_Master 09-19-07.qxd (easternmetal.com)
then you can use greenlancer.com to find an engineer in your state to approve the plans. if you draw them might cost $300, if you have eningeer draw them might cost $1500 to $2000
watch you tube videos on how to install aluminum patio, same idea.Comment
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