Re: [RE-wrenches] AC coupling with Fronius
Hi Mac-- We've installed four Magnum 4048-Fronius AC coupled systems, ranging from the older Fronius IG through the later Fronius IG Plus with arc fault. One system had three Magnums, another two Magnums and two were single Magnums. We had a small glitch on the two Magnum system on one occasion that we haven't yet figured out and we don't yet have enough info to make a pronouncement. The grid dropped out on a cold, partly cloudy, sunny day with winds quickly moving the clouds past the modules. The Fronius IG Plus would not switch to the second stage after the clouds passed and the sun came out. We weren't there at the time and conditions are hard to replicate. Magnum tells us it's a Fronius issue and we are hoping to work with someone at Fronius to learn more. Bill Hennessy Berks Solar, LLC From: Mac Lewis maclew...@gmail.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wednesday, April 16, 2014 4:44 PM Subject: [RE-wrenches] AC coupling with Fronius Hello wrenches, Has anyone had good success AC coupling with Fronius Inverters? If so, what equipment did you use? Was this with an IG or an IG Plus? I have had quite a few people lately with Fronius Inverters that would like a backup solution and I'm not comfortable AC coupling these, but could potentially be persuaded. Thanks -- Mac Lewis Yo solo sé que no sé nada. -Sócrates ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
[RE-wrenches] Nano cleaning and sealing products.
Aloha Wrenches, Now that one in ten houses have a solar system here in Oahu there are a lot of companies selling products and services like this one below. http://www.cenano.net/solar-photovoltaic/ Here are a few of their claims: *Cenano Pacific* exclusive nanotechnology line proudly introduces the #1 solar panel sealant and protectant in the world! Proven to seal and protect your solar panels plus increase their efficiency. It's 100% safe and will not affect your panels warranty. The sealant repels fat, dirt, oil and water on all solid, non-absorbent surfaces such as glass, metal, plastic, chrome, ceramics, and stainless steel. Is there anybody out that can share some stories or insights on products like this? Do they even work? When exposed to the sun for years will they turn from clear to opaque..etc. Will this product or others like this void manufactures warranty's? Mahalozz in advance, *James B. Rudolph* *Haleakala Solar* *Director of Construction* *ES Electrician # 10816* *NABCEP Certified PV Installer # 091209-155* ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Nano cleaning and sealing products.
James, This product is probably much like Rain-X. While you could put it on PV modules, it would require reapplication on a fairly regular basis to keep it working. As you pointed out, I don’t think many, if any, module manufacturers that would specifically warranty their product with Rain-X on it—I don’t see this as any different. Not as worried about it turning opaque. More worried that it will look bad as it wears out without a reapplication. Bill. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of James Rudolph Sent: Monday, April 21, 2014 1:49 PM To: RE-wrenches Subject: [RE-wrenches] Nano cleaning and sealing products. Aloha Wrenches, Now that one in ten houses have a solar system here in Oahu there are a lot of companies selling products and services like this one below. http://www.cenano.net/solar-photovoltaic/ Here are a few of their claims: Cenano Pacific exclusive nanotechnology line proudly introduces the #1 solar panel sealant and protectant in the world! Proven to seal and protect your solar panels plus increase their efficiency. It's 100% safe and will not affect your panels warranty. The sealant repels fat, dirt, oil and water on all solid, non-absorbent surfaces such as glass, metal, plastic, chrome, ceramics, and stainless steel. Is there anybody out that can share some stories or insights on products like this? Do they even work? When exposed to the sun for years will they turn from clear to opaque..etc. Will this product or others like this void manufactures warranty's? Mahalozz in advance, James B. Rudolph Haleakala Solar Director of Construction ES Electrician # 10816 NABCEP Certified PV Installer # 091209-155 --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Nano cleaning and sealing products.
HI James I can't speak to this product, but they use such things in the middle east to keep the dust off the windows on high rise buildings. jay peltz power On Apr 21, 2014, at 1:48 PM, James Rudolph wrote: Aloha Wrenches, Now that one in ten houses have a solar system here in Oahu there are a lot of companies selling products and services like this one below. http://www.cenano.net/solar-photovoltaic/ Here are a few of their claims: Cenano Pacific exclusive nanotechnology line proudly introduces the #1 solar panel sealant and protectant in the world! Proven to seal and protect your solar panels plus increase their efficiency. It's 100% safe and will not affect your panels warranty. The sealant repels fat, dirt, oil and water on all solid, non-absorbent surfaces such as glass, metal, plastic, chrome, ceramics, and stainless steel. Is there anybody out that can share some stories or insights on products like this? Do they even work? When exposed to the sun for years will they turn from clear to opaque..etc. Will this product or others like this void manufactures warranty's? Mahalozz in advance, James B. Rudolph Haleakala Solar Director of Construction ES Electrician # 10816 NABCEP Certified PV Installer # 091209-155 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
[RE-wrenches] Stainless NEMA4x load center
Hello Friends! Anyone have a lead for* NEMA 4x* stainless load centers (electrical panel)? Looking for 4 circuit version rated at about 60-100A @ 240VAC. Would like to use it for rooftop combiner for 3 Enphase inverter output circuits. Thank you!! Sunny Regards, Kirpal Khalsa NABCEP Certified PV Installation Professional Renewable Energy Systems www.oregonsolarworks.com 541-218-0201 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame - is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. . Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. . Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 (802) 888-7194 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
Hi David, We have thousands of PV modules installed mostly on RV's. An RV roof can be a very abusive environment with turbulence, flying debris, driving under limbs, heavy vibrations and more. I have not had any glass breakage that could not be accounted for, i.e, breaking for unknown reason. But, we have had hoodlums shooting at PV modules. Perhaps look at the back for a hole. Larry On Apr 21, 2014, at 3:32 PM, Dave Palumbo d...@independentpowerllc.com wrote: Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame – is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. · Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. · Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 (802) 888-7194 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
About 5 years ago we had a SunPower module shatter for no apparent reason a couple of weeks after we completed the installation. No one knows the exact cause, but SunPower did end up RMAing the module and sent an engineer out to check out our array (which was flush mount rooftop). We noticed that the frames on the modules were out of square and my educated guess was that there was some strain on the module frame caused by our installers as they “tweaked” the modules to make the array square. We also noticed the module glass on some of the adjacent modules was slightly cupped (concave). I don’t know if that was a manufacturing issue or what the cause of the cupping was. We haven’t had any problems since. I suppose extreme hot/cold variations such as pouring warm water on a cold module or spraying a hot module with cold water could cause it to shatter but don’t have any direct experience with that. Best, August *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Dave Palumbo *Sent:* Monday, April 21, 2014 3:32 PM *To:* 'RE-wrenches' *Subject:* Re: [RE-wrenches] Solar World shattered module Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame – is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. · Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. · Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 (802) 888-7194 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Nano cleaning and sealing products.
James It is probably a Silane solution ( Silicon based), it is commonly used for skyscraper windows to insure that the Very High Bonding (VHB) tape used to adhere them is not undermined by water intrusion I have also seen it used in solar modules on the edge of the glass prior to lamination to keep water out of the lamination and improve the lamination adhesion. Glass is Hydro-tropic ( attracts water ) and water will try to flow into recesses or between adhesive surfaces on the glass. Add a heat freeze process and the adhesion can be undermined over time. By applying a very small amount of Silane in a water solution the water will more readily bead up and flow off the glass, making it more Hydro-phobic ( repelling water). Beware too much will cause the glass to have an oily film that will actually keep adhesion from occurring or cause more dirt and dust build up. It will also promote easier cleaning. Essentially it fills the porous surface of the glass that attracts water and allows it to run off I believe that this is the same ingredient used in the secret sauce of RainX to make water bead up and run off your windshield. As with RainX it lasts a pretty long time, but do put too much on! Not sure what it does to the environment though Bill On Mon, Apr 21, 2014 at 2:32 PM, jay peltz j...@asis.com wrote: HI James I can't speak to this product, but they use such things in the middle east to keep the dust off the windows on high rise buildings. jay peltz power On Apr 21, 2014, at 1:48 PM, James Rudolph wrote: Aloha Wrenches, Now that one in ten houses have a solar system here in Oahu there are a lot of companies selling products and services like this one below. http://www.cenano.net/solar-photovoltaic/ Here are a few of their claims: *Cenano Pacific* exclusive nanotechnology line proudly introduces the #1 solar panel sealant and protectant in the world! Proven to seal and protect your solar panels plus increase their efficiency. It's 100% safe and will not affect your panels warranty. The sealant repels fat, dirt, oil and water on all solid, non-absorbent surfaces such as glass, metal, plastic, chrome, ceramics, and stainless steel. Is there anybody out that can share some stories or insights on products like this? Do they even work? When exposed to the sun for years will they turn from clear to opaque..etc. Will this product or others like this void manufactures warranty's? Mahalozz in advance, *James B. Rudolph* *Haleakala Solar* *Director of Construction* *ES Electrician # 10816* *NABCEP Certified PV Installer # 091209-155* ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 -- William Hoffer 161 SE Fourth Ave P.O. Box 1823 White Salmon, WA 98672-1823 suneng...@gmail.com bhof...@sunergyengineeringservices.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
Dave Sometimes tempered glass will have a defect that will cause spontaneous breakage from a relatively small stress in exactly the right spot. We have seen that happen during module manufacturing, so usally it never makes it out the door. What does the shatter pattern look like. If it is from being hit by something the spot that was hit is pretty recognizable as the cracks radiate out from there. Or if it is heat related ( hotspotting , diodes overheating or a bad cell solder ) the cracks will radiate out from that spot and there should be some discoloration from the over heating event. Pressure from the frame could have also occurred if it pushed directly against the defect, but I would find that less likely since most SolarWorld modules are gasket-ed and have ample space between glass and frame for expansion and contraction. Bill On Mon, Apr 21, 2014 at 3:32 PM, Dave Palumbo d...@independentpowerllc.comwrote: Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame - is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. · Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. · Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 (802) 888-7194 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 -- William Hoffer 161 SE Fourth Ave P.O. Box 1823 White Salmon, WA 98672-1823 suneng...@gmail.com bhof...@sunergyengineeringservices.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
Hi David, I've seen this a lot of times, and it was always caused by the diode failing, which caused the diode to get very hot and would result in the glass shattering. This was often obvious because the area around the diode would become black and the module j-box would sometimes begin to melt. One time I was replacing one of these modules and burned my finger on the glass near the diode. On Mon, Apr 21, 2014 at 3:32 PM, Dave Palumbo d...@independentpowerllc.comwrote: Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame – is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. · Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. · Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 (802) 888-7194 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 -- Cordially, *Nick Soleil* *Field Applications Engineer* *Enphase Energy* Mobile: (707) 321-2937 http://enphase.com/enlighten_content/myenlighten-launch-site/?utm_source=MyEnlightenPromoutm_medium=Email_Sigutm_campaign=MyEnlighten *MyEnlighten is Coming. *Get Readyhttp://enphase.com/enlighten_content/myenlighten-launch-site/?utm_source=MyEnlightenPromoutm_medium=Email_Sigutm_campaign=MyEnlighten http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 1420 North McDowell Petaluma, CA 94954 www.enphase.com http://www.enphaseenergy.com/ P: (707) 763-4784 x7267 F: (707) 763-0784 E: nsol...@enphaseenergy.com NABCEP Certified Solar PV Installer #03262011-300 California C10 Licensed Electrician #986315 Texas Master Electrician #284451 nsol...@enphaseenergy.com “Don’t get me wrong: I love nuclear energy! It’s just that I prefer fusion to fission. And it just so happens that there’s an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it’s wireless!” - William McDonough This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
Dave, I have worked with many DPW pole-top racks, as it is our rack of choice for battery-based (mostly off grid) and water pumping applications. While I have seen errors in construction, they have not tended to cause warpage of the modules. Also, the modules on every one of their racks with which I have worked hold the individual modules apart from each other, typically at least 1/4". So I would not suspect the rack as the cause. Others have made good suggestions: check the shatter pattern - it could be a hot spot, it could be a flaw in the tempered glass. Allan Allan Sindelar al...@sindelarsolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder (Retired), Positive Energy, Inc. 505 780-2738 cell On 4/21/2014 4:32 PM, Dave Palumbo wrote: Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 (802) 888-7194 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
Re: [RE-wrenches] Solar World shattered module
The bottom corner modules are the likeliest to be damaged by somebody or something moving past the array. I'd check for any damage on the edge of the frame. I had kids run a vehicle into a pole mounted array once. No one would cop to it, but I found the matching damage on the roll cage of the electric cart. Elk, deer, cows, bears, kids, can all shatter a module. I found the tempered glass is all or nothing, and completely shatters across the entire face when it does finally break. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 4/21/2014 10:21 PM, Allan Sindelar wrote: Dave, I have worked with many DPW pole-top racks, as it is our rack of choice for battery-based (mostly off grid) and water pumping applications. While I have seen errors in construction, they have not tended to cause warpage of the modules. Also, the modules on every one of their racks with which I have worked hold the individual modules apart from each other, typically at least 1/4. So I would not suspect the rack as the cause. Others have made good suggestions: check the shatter pattern - it could be a hot spot, it could be a flaw in the tempered glass. Allan *Allan Sindelar* al...@sindelarsolar.com mailto:al...@sindelarsolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder (Retired), Positive Energy, Inc. *505 780-2738 cell* ** On 4/21/2014 4:32 PM, Dave Palumbo wrote: Wrenches, I have a customer with one SW 230 poly V2.0 frame (top mount) module that has shattered glass. It is on a DPW TPM10 pole mount. She noticed it the other day and does not think that it was hit by anything. I agree that is unlikely based on the site conditions. Other than by a falling tree, thrown rock, or twisted frame -- is there another way that glass shatters on a 65 degree tilted pole mount like this? We installed the system 2 years ago. The module was on the lower corner of the array. ·Is it likely that this modules frame was being pressured by the module(s) above it? TPM has two rows of 5 modules in landscape, so this bottom module has 4 modules mounted above it. Again it is a top mounted DPW pole array. ·Or, is there another way that glass shatters on this type of module? I have not visited the site yet, just received the phone call today. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655** (802) 888-7194 ___ List sponsored by Home Power magazine List Address:RE-wrenches@lists.re-wrenches.org Change email address 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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
