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
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
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
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
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
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
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.
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
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
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
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.
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
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
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