Originally posted by Diana
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What to use as backing for Sylgard solar panels?
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60 cell grid tie solar panels are so cheap these days you would likely spend more on whatever resin encapsulant and other backing materials to repair it than buying a new panel. With a new panel you get a warrantee. With a repaired panel it's just a matter of time till it fails.Leave a comment:
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Semiconductor devices do not tolerate moisture. If you break the seal on a transistor or an
integrated circuit or a solar panel, it will still work at first. But expect it to fade away or quit in
something like a few months. Bruce RoeLeave a comment:
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Hi sorry to bump this thread, total newbie. I have been looking to start a solar project for my camper, I just came by some panels recovered from a solar farm, 285w 30v. However they are damaged (glass front is burst) however they still give good output. Problem is as I understand it the glass is what gives the glass its structural integrity therefore I was proposing bonding some thin ply to the rear to put some strength back into it, then apply a silicone, resin to reseal the front. I would appreciate some advice on this, but please don't hang me for a schoolboy error as I am a novice eager to learn the black art, (without setting light to my camper)Leave a comment:
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Originally posted by Solar-dude View Postthis is from dow, the maker of slygard and their testing. Notice the panel has NO backer:
And then they closed the Maryland plant and moved to ChinaLeave a comment:
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Originally posted by Solar-dude View Postthis is from dow, the maker of slygard and their testing. Notice the panel has NO backer:Leave a comment:
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none needed according to dow and bp
this is from dow, the maker of slygard and their testing. Notice the panel has NO backer:
With more than 30 years of experience, and installations in over 160 countries, BP Solar is one of the world’s leading
solar companies. It has manufacturing facilities in the United States, Spain, India and China.
Dr. Jean Posbic, director of Technology Projects, BP Solar, tells the story: “In 1982, the array started at a 200kW
nominal power and consisted of 52 parallel strings. Each string contained 60 modules, of 55Wto 65W, connected in series. The
unframed modules used a silicone resin encapsulation.
The whole system was stand-alone using a storage battery until 1987 when the systemwas converted to an uninterruptable
power supply, then in 2000 to a pure grid-tied system.”
FAST FORWARD 25 YEARS
After 15 years of service, exposed to all types of weather in Maryland, USA, followed by 10 years in storage, BP Solar ran testing to determine how well the modules still performed.
“Some of the modules removed a few years back were brought in and retested and showed little or no electrical
degradation,” Posbic says. “The array is now being looked at for in-depth makeover in order to ensure many more
years of operation.”
Specifically, testing showed the panel’s power rating performance had only declined by 5 percent over a quarter century.
“We understand that durability is one of the critical factors PV producers and other solar manufacturers are looking for,” says
Allison Ashbrook, Americas commercial manager, Dow Corning Solar Solutions. “It’s worth noting that after such a long time, this panel is in outstanding shape. It’s completelyconstructed out of silicone encapsulation; noback sheet was used. There has been no degradation in the silicone and the panelis still operating as if it were new. This isthe kind of durability and sustained
performance PV producers require.”Leave a comment:
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Originally posted by landslide03 View PostI was thinking about the same thing. Some people use that thin white plastic backing. I was thinking about the 1/4 hardibacker board. The main reason is so that if there is a fire it would spread any further than the cells inside. Let me know what you guys thinkLeave a comment:
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I used heavy duty Reynolds Wrap and spray on contact adhesive to attach it.
I would advise covering the solder points with electrical tape or clear vinal(?) electrical tape first.
The foil is a great water blocker. And you could always add some kind of board afterward for physical protection.Leave a comment:
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I was thinking about the same thing. Some people use that thin white plastic backing. I was thinking about the 1/4 hardibacker board. The main reason is so that if there is a fire it would spread any further than the cells inside. Let me know what you guys thinkLeave a comment:
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What to use as backing for Sylgard solar panels?
So we all know the layering for EVA based encapsulation is -
Glass / EVA / Solar Cell / EVA / Tedlar.
But what about for Sylgard?
Glass / Sylgard soaked Solar Cell / ??? (Another glass? Tedlar? fiberglass?)
Let me know what you think..
Thanks in advance.
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