I have some sunpower modules available from a deal i had that deid on the
vine contact me off list if interested, as i recall there are over 132
modules new in the box
Jerry
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Luke,
I have used a number of coatings over the years. My go to coating is made by
3M, I believe its called Heavy Duty Performance coating. 3M rates it resistant
to Sulphuric acid at something like a 15% solution, but I have seen some boxes
I made in the early 90s that were pig-sties and the coa
We have seen something very close, it appears that the gwnny will always
win this war.
Jerry
On Jan 29, 2016 1:14 PM, "Jason Szumlanski" <
ja...@floridasolardesigngroup.com> wrote:
> I'm looking at two Eaton PV250 inverters that failed simultaneously as far
> as we know (not my install). Everythin
I'm looking at two Eaton PV250 inverters that failed simultaneously as far
as we know (not my install). Everything checked out normal, but no display
and no power output. I suspect both boards are bad. Upon digging into the
scenario I discovered that the owner had a whole-house generator transfer
s
Wrenches
We have been installing combiners with anything more then 1 string on the
TL inverters. Troubleshooting is better with a remote combiner, its seems a
waist but all our inspectors to like to see it also.
On Jan 29, 2016 10:36 AM, "Mark Byington" wrote:
>
>
> "Transformerless inverters nee
"Transformerless inverters need fuses on both DC positive and DC negative
legs to protect the inverter in case of ground fault."
I could be wrong, but my understanding is that TL inverters are no different
than transformer type inverters in terms of DC fusing requirements - no fuse
required
Dan,
I concur with your basic assessment. After listening to an Aquion presentation,
and reviewing the operating curves, this battery has a very narrow application.
Most off-grid houses these days have significant surge loads. That is why we
spend so much time and effort making sure our
Hi Dan
Can you provide any documentation on this?
Thanks Jay
Peltz power.
Sent from my iPhone
> On Jan 28, 2016, at 8:52 PM,
> wrote:
>
> While Brian T. is correct that fusing is not required for string-to-string
> overcurrent protection with two strings into two channels, there is an
That new chart is for a single block, but we would want the M100 or M110
which is 12 of those S30 blocks connected together (580 AH @ 20 hr
rate). I haven't tried them, but I penciled out the ROI and at 3000
cycles they stand up well against other lead acid batteries. 40 v is
low, but I believ
Thanks Dana. The new curves don’t look much better. Look at the space between
the curves and realize that they are only 2A load difference. If we extrapolate
to 17 amps the capacity will be greatly reduced. They need to show what the
voltage sag is under full 680 Watt load.
Has anyone actually
Ray,
I have had good success with flat rubber membrane roofing. I have not had
good success with caulked seams, so i run a continuous peice and lap the
corners. A stapler won't hold the laps so i will drive a wood screw into
the box corner to hold it tight. It has never gotten gooey on me even
I second Larry's concerns about Aquion's SOC/voltage curves and tripping
LVD at only 40% DOD with standard PV equipment, tied in with not being able
to handle high discharge C-rates and surge loads. I did some math on
running a typical off-grid home with a well pump on Aquions, and it wasn't
pretty
Hi Shasta,
I have to second Ray and say that I'm impressed with the description of the
battery boxes you've been making. I've always been dismayed by wooden battery
boxes as well, but I have installed a lot of them, both because of the ease of
getting materials and because they do seem to hold u
Hi Shasta;
Sounds like you get the prize for battery box diligence. Lots of good
ideas there, although I've seen very bad things happen with steel bottom
trays for batteries.
I've also seen spray on bed liner get peeled right off by acid, so I
would go with all plastic or concrete on any insid
Wrenches
We were looking at these “Aquion batteries” but once we compared the power,
voltage operating range and storage of the Unigy vs the Aquion we went with
the Unigy brand the volt range worked normally no changes to the LBCO
setings. I have Unigy applications going back close to 15 years with
Thanks for the input on SolarEdge. We finally sorted the issue out. Turns
out somehow we got the wrong optimizers from our distributor - the details
are a bit cloudy since it was over a year ago. But the short is we had
optimizers with Amphenol connectors, and "Hosiden" brand MC4 connectors on
t
I have always been dismayed with wooden battery boxes used in professionally
installed power systems. It seems vey DIYer/HomePoweresque. Where else is wood
used in electrical installations? I have on occasion built some BB plywood core
boxes, sheetmetal outer skin/ FRP inner skin/ raw edges and
I have that also and it is OKAY, but for a highly corrosive location, the
spray gives a lot of extra protection.
Chris Mason
Comet Systems
Anguilla (264) 235-5670
St. Kitts (869) 662-5670
skype netconcepts
NABCEP Certified Solar PV Installer™
Renewable Energy Systems professional
Generac Gener
I too am interested in anyone that has installed these. I had some concerns
back on Nov 10, 2014. Here is a copy/past from that conversation:
Something does not add up to me. The cell has a voltage discharge curve way
outside that of RE equipment, 1.75 Vpc down to 0.5Vpc. I can't see how this
t
To All,
Great insight on the lithium movement. I do am looking for anyone
dealing with the new Aquion batteries. I’ve got a couple of potential clients
that have inquired about them. Saw them at a NABCEP training session last
spring and while the idea is moving I wasn’t impressed. P
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