and
doing AC coupling which we have found as another way to deal with a long
wire run to a distant array.
Jeff Yago
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Tom Duffy
Sent: Monday, September 23, 2013 10:07 AM
for this Xanbus
interface that will work with Windows 7 ?
Thanks,
Jeff Yago
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a voltage and not a dry
contact?
Any suggestions??
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Jeff Yago
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low setpoint,
An internal switch takes that module(s) out of string. I do not remember if
temperature is adjustable, but most likely it is set for around 5 degree F.
Jeff Yago
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to be supplied with the amount of service capacity it is rated for,
but what other code issues can I point out to get this accepted without
getting into a pis- contest?
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Jeff Yago
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-Owned Small Business.
Any wrenches out there interested and SDVOSB certified, or perhaps can
forward this to somebody you know that is??
Thanks,
Jeff Yago
DTI Solar Inc.
804-457-9566
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blades back
then!
I don't know where we are headed, but I think I have been on this road
before and I did not like where it went the first time.
Jeff Yago
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will not get distilled water
by just heating, it must turn to dry steam (gas) first.
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to make these changes and then ship out the inverter with the
modifications without the needing to include the remote control.
Thanks,
Jeff Yago
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.
What happened to common sense?
Jeff Yago
DTI Solar Inc.
Virginia
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and past
project experience to install a system in the 580 kW size range. Contact me
off list if interested,
Jeff Yago
DTI Solar Inc.
804-457-9566
jry...@dtisolar.com
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which sucked down power in standby mode due to the added
electronic monitoring panel not on earlier models.)
Any maintenance issues with belt drive? Do I finally take Generac off my
stay away from list?
Thanks,
Jeff Yago
DTI Solar Inc.
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switches for all dashboard controls, has absolutely no electronic
display or engine sensor devices, and now has an all fiberglass body - just
in case I am wrong!
Jeff Yago
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very easy to email a list of items you want to your assigned salesperson and
they will return the proposed order with pricing for your final approval.
This is actually working better than spending hours trying to navigate a web
site with part numbers you may not know.
Jeff Yago
Jeffrey R
.
It's a 100 kW model PVS-100, 480 VAC, 3ph, Satcom with six(6) string input,
in an outdoor rated enclosure, inverter mountied AC and DC main
dis-connects, and pre-wired for Mod-Buss data communication.
Call or email me off list for contractor contact if you want to make them an
offer -
Jeff Yago
to make
sure I do not allow this and the inspector later flags it.
Any of you run into this before?
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Jeff Yago
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this was going away with better quality controls on the
glass used in module manufacturer.
Jeff Yago
DTI Solar Inc.
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voltage systems and there are safety equipment made to protect hands and
faces which can receive some really bad burns. Please review proper safety
procedures for working on this equipment.
Jeff yago
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-load this video from my camera and convert to a file I
can send as an email attachment. If interested, send me your email address.
Jeff Yago
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or you would expect the
building to have more than enough fresh air ventilation to dilute the gas.
Maybe somebody has a copy of this video?
Jeff Yago
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-ventilated battery rooms that you could eat off of
the floor 10 years later.
I say that battery boxes should be a last resort and used only when there is
no other way, and then you better make sure there are multiple sources of
adequate ventilation air.
Jeff Yago
DTI Solar Inc
than the conduit carrying the wiring which protects from trimmers and
mowers.
Keep us posted,
Jeff Yago
DTI Solar Inc.
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included on almost all battery based
inverters, which is programmed to start when the battery voltage indicates the
battery charge is raising.
Jeff Yago
DTI Solar Inc.
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if that is not supplied. Since its 12 volt DC and off-grid application I do
not think it needs to be UL listed which might help reduce cost, but not
sure.
Any suggestions??
Thanks,
Jeff Yago
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perfect conditions the client never
understands - why isn't my 2 kW nameplate rated system producing 2 kW?.
Just saying.
Jeff Yago
DTI Solar
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a meter that is very easy to download the data
and print custom graphs without going through all kinds of data conversion
issues.
Any suggestions,
Jeff Yago
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did not want
to convert to 120 VAC which adds cost, losses, and complexity. The client's
other concern was absolutely positively no low power shutdown during
multiple days of bad weather, so we really oversized the array and battery.
Jeff Yago
DTI Solar Inc
want a meter that is very
easy to download the data and print custom graphs without going through all
kinds of data conversion issues.
Thanks for any advice,
Jeff Yago
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and
after you touch anything with photos, field notes, and hopefully a witness
as suggested by others following this thread.
Jeff Yago
DTI Solar Inc.
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commercial systems where there are already multiple code required
disconnects that are required to be accessible, I still think its best for
the installer and for system maintenance to have a disconnect mounted in the
cover or right beside the combiner box at each array on multiple array
systems.
Jeff
to keep one
string from pulling down the other strings when there is a low performance
cell so you might do a cell by cell check.
Good Luck,
Jeff Yago
DTI Solar Inc
models currently do not include a battery charger, but I am told this
feature will soon be available in all of the smaller units.
Jeff Yago
DTI Solar Inc.
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. This last
time the inverter was off line for 2 days then came on by itself again and
is now working just fine. During all this the first inverter worked
perfectly. After 3 trips to check out and finding nothing out of place, is
it time to send this one back to the factory?
Jeff Yago
with corrosion is mixing copper and aluminum such as
where somebody used wrong type module frame ground connectors.
Jeff Yago
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Along the same subject I was in Sams Club last month and they had a whole stack of 24 volt 200 watt Grape Solar grid-tie modules for sale at a really low price. However, these were pigtail connectors and there was no documentation, no inverters, no combiners, no nothing to tell customers anything
We have designed and installed many systems like this and do not like running
high voltage DC long distances. We invert at the array and run 240 VAC to the
house. This means the array dis-connects match all the other AC dis-connects
and safety switches on the home's exteror that the
s and terminals stay clean.
Stay safe, and remember, if you "taste" something salty in the air whilestanding around in a battery room - get out!
Jeff Yago
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this road unless we have some assistance. Anyone know a better solution or is the Fronius site worth another look? The school just wants to view their system performance on line.
Jeff Yago
DTI SolarNetscape. Just the Net You Need.
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watt range are actually designed for salt water applications?
Thanks,
Jeff Yago. Netscape. Just the Net You Need.
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r removing a breaker in an existingpanel to connect a new inverter, please make sure the panel is de-energized and wear approved arc flash gear!
Jeff Yago, DTI Solar
http://www.youtube.com/watch?v=m3_ear4k-Jg
http://www.youtube.com/watch?v=-iClXrd50Z8feature=related
http://www.youtube.com/watc
, and just filling a
storage tank. At what point and HP range is it better to not use the SQflex
line and pick a larger AC spump??
THanks,
Jeff Yago
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I know this topic has come up before, but am hoping there are some new products out there.
Although we are doing more grid tie these days, we still get more than our share of off grid systems due to the fact that e have been doing this for son long that there was a time when all systems were
We designed and installed a few off grid systems out west about 10 years ago and found all the wells there drill halfway to China. Since here in Virginia most wells hit quality water at 30 feet, we know there was no way the single SW4048 could handle a 2 or 3 HP pump. So we installed a 300 gallon
Well, this should start up a fire storm. I will not mention the county or state as we do work in many other areas, but today I stopped by a county building permit office to apply for a permit to install a grid-tie solar system that includes battery backup and generator, which we are adding to an
-worked these to now be 24 volt modules and our original ones were 12 volt
(17 Voc), but we can work around that.
Any idea?
Thanks,
Jeff Yago
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is was a python that had swalled six pepsi cans! Not sure what this will look like on a roof or how well it can be hidden behind the array, but it uses a larger wire size so perhaps the wire loss issue has been resolved.
Jeff Yago
DTI SolarNetscape. Just the Net You Need
Below are links to a 2-part article I published several years ago telling you how to build a solar-powered utility trailer.Lots of photos.
Jeff Yago
DTI Solar
Part 1 - http://www.backwoodshome.com/articles2/yago108.html
Part 2 - http://www.backwoodshome.com/articles2/yago109.htmlNetscape. Just
Over the past few years we have had our share of modules damaged in shipment or in handling on our end that were never installed but had broken glazing. As you know, when these things go they usually look like a car windshield, with the vinyl backing holding all the broken small glass pieces
Over the past few years we have had our share of modules damaged in shipment or in handling on our end that were never installed but had broken glazing. As you know, when these things go they usually look like a car windshield, with the vinyl backing holding all the broken small glass pieces
Same here. We have a bunch of solar powered DC sign lighting comming up and due to long lead time on quality top-of-pole mounting hardware we ordered some nice custom mounts for 40 to 80 watt Kyocera modules at same time we ordered the modules. They never called back, never responded to our order,
Same here. We have a bunch of solar powered DC sign lighting comming up and due to long lead time on quality top-of-pole mounting hardware we ordered some nice custom mounts for 40 to 80 watt Kyocera modules at same time we ordered the modules. They never called back, never responded to our order,
Heres another one for you to watch out for. We provided the solar design, wiring diagrams, and specified the solar system for a 112 module system going on the roof of a University Building as part of a design bid package.The installationwas awarded to alocal commercial electrical contractor. Due
As you know, cold floors reduce battery charge. We use a support "shelf" made of pressure treated 2 x 4 on EDGE, separated by 3/8" pressure treated plates every 2 feet, using 8 foot long boards. This 16" wide by 8 foot long shelf is placed on standard concrete blocks spaced every 2 or 3 feet,
completed and if all we have been told is accurate.
Note sure what more we can do as I do not have contact info for this guy, but
will keep trying.
Jeff Yago
DTI Solar
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First let me say that we almost never work on failed systems, especially when its for somebody that picked our brains on pretense of buying a system, then they went out and bought everything on the internet, and when nothing worked they call us!Also, let me say that the following project has
friend Ken Schaal (who is also
on this list) called today to say this guy had also tried to get his
help. Ken knows where this building is located and will try and get some
before the fire photos.
Jeff Yago
DTI Solar
P.S. All the other comments were very funny, especially the walk lights
will point out that there are too manyunknownsbeyond their controlthat could reduce the hoped for outcome and if you want a guarantee, - buy life insurance - you die - they pay -guaranteed.
Jeff Yago
Netscape. Just the Net You Need.
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on the house panel,
and one set on the output from the solar inverter, and display them both on the
same desktop wireless display.
Link below -
Jeff Yago
DTI Solar
http://www.currentcost.net/monitor.html
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long return trip that should not have been require.
As westart receivingall this non-standardized stuff, better check everything twice.
Jeff Yago
DTI SolarNetscape. Just the Net You Need.
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Since the new micro-inverters can be easily wired into the nearest 240 VAC circuit, odds are this will be the new do-it-yourself project for homeowners. However, odds also favor new round of outlaw solar systems that are not inspected, do not have properly sized wires and breakers, and do not have
e and hope the array voltageis still in limits? Will your client consider that an acceptable warranty solution?
So will mycollection of a few mis-matched modules of each brand and size that areno longer manufactured turn into a future gold mine?? Oh well,I can always dream.....
Jeff
completely solve the problem.
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. We are however still looking for a really good solution for pre-fab metal roofing.
Jeff Yago
DTI SolarNetscape. Just the Net You Need.
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to final design.
Not sure at this time if solar or not, but will be making the point.
Any of you wrench turners on the island may want to give me a call as I will be
checking email each night from hotel.
Jeff Yago,
NABCEP Certified
DTI Solar
P.O. Box 10
4494 Lake View
articles
about solar sun-flower shaped street lighting, but I do not need anything
that large and its not for a street light application. Anybody know a supplier
that will sell in small quantities?
Thanks,
Jeff Yago
jry...@netscape.com
Have a client dead set onwanting us tosupplySanyo HIT 215N modules on their project "for max. power and min. roof area". However, all our regular suppliers are acting like we have 3 heads to even ask. So, are thesemodules available, and if so, who is stocking. We need 20 yesterday.
Tha
are getting nailed at both ends - too few modules per string can
shut down inverters when hot summer days drop module voltages, and too many
modules per string can do some real high voltage damage on a very cold sunny
day with a foot of snow on the ground.
What say yea?
Jeff Yago
are getting nailed at both ends - too few modules per string can
shut down inverters when hot summer days drop module voltages, and too many
modules per string can do some real high voltage damage on a very cold sunny
day with a foot of snow on the ground.
What say yea?
Jeff Yago
frame strength was critical such as limited frame support or larger support spans, which modules do you think have the most rigid frames and best support of the glass?
Thanks,
Jeff Yago
Netscape. Just the Net You Need.
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Sorry for mis-statement as I was not trying to place blame on the designer or installer of the Target failure which I do not have any first hand knowledge.
My point was that regardless of who did what, the conduit did came loose at a fitting, most likely due to expansion and contraction in a
in parallel.
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Called in totrouble shoot a dual Trace SW4048 system that we did not install.
Yes, I know, and we almost never work on systems we did not install, but client was desparate and installer was long gone. System has about6 kW solar, 17 kW generator, 16 L-16 batteries, and is set up to "SELL" solar to
Called in totrouble shoot a dual Trace SW4048 system that we did not install.
Yes, I know, and we almost never work on systems we did not install, but client was desparate and installer was long gone. System has about6 kW solar, 17 kW generator, 16 L-16 batteries, and is set up to "SELL" solar to
of the module
was made in the US.
Jeff Yago
DTI Solar
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For years we were using 3 other brands, but last year switched to Evergroon 200
watt units when they started making black frames. I like how they are shipped.
Their lower voltage makes it easier to wire more in series without bumping up
against high limit on most inverters.
Jeff Yago
DTI
made modules even though they cost
more, but we now are making extra sure the really are made in the US. In
addition, when we mention Made in US to our clients they really like that, and
I am sure they realize there is a higher cost premium involved.
Jeff Yago
DTI Solar
initial setup. Many of
you may not deal with battery based systems, but half of our systems are and AC
coupled is a great way to avoid long low voltage DC wire run losses. We
select generator type from a setup menu, how about Press 1 for standard
inverter setup, press 2 for AC coupling.
Jeff
addressed that clearly, and since I do not want to start
giving tax advice based on just my reading of the bill are there any actual
rulings on each of these added costs we can use as a guide?
Jeff Yago
DTI Solar
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way the AC power comes into the charger section. Whats the problem?
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Just completed an install with ground mounted array and SunnyBoy with AC coupled connection to output bkr.panel of battery based Xantrex XW6048. The XW is also supplied from a generator for backup power during outages.
Since the battery based XW is not actually selling to grid from battery, if it
. Is this just me or are these connectors having some quality control issues.
Jeff Yago
DTI SolarNetscape. Just the Net You Need.
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remote pole mounted array, we always "twist the cables around each other if not too large, or use cable ties every few feet for the larger cables to keep them from being separated when back-filled.
Jeff Yago
DTI SolarNetscape. Just the Net You Need.
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mount, and some clients wanted a different color module or
module frame. Our clients tend to be very high end and are willing to pay for
what they want, so for now we cannot utalize pre-designed and pre-packaged
kits although it would make life easier if we could.
Jeff Yago
I have a question that may be one of those that everyone wants to know the answer but feel they are the only one that doesn't know the answer, or perhaps I am the only one that doesn't know!.
In an AC-coupled system, i.e. the 240 VAC output solar inverter mounted ata distant array (240 VAC out
we did with our broken module (which taught a very expensive
lesson about checking shipments), we keep it to show students in our training
classes what happens when things go wrong.
Jeff Yago
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the current drastically increases at the lower voltage and any
long wire run will have a major voltage drop at low voltage.
Jeff Yago
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We are completing a residential 4 kW solar system that is on the grid, but has backup battery-powered Xantrex 6 kW inverter, AC coupled Sunny-Boy inverter, and a 17 kW Kohler generator. The larger generator is to allow operation of a ground-source heat pump during winter which is not supplied from
not found this to be a problem with Outback
equipment.
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I sure would like to have a final definitive answer on this. For years we were installing Kohler 8.5 kW units as they were easy for any inverter to start and stop with a simple relay, and their output was easy for the local Kohler dealer to re-configure for 100% output at 120 VAC. All they ever
who is involved with inspecting air conditioning and heating
systems.
Just another example of the type of support we are not getting from any other
national association.
Jeff Yago
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What specific supplier, model number, andbrand relay have you found to be perfect to isolate the inverter AC outputto the sub-panel of a battery-based inverter in an AC coupled system?
This will be in the 20 to 30 amp 240 VAC contact range. Also, do you normally set it up as N.C. or N.O. for
cardboard tubes full of concrete, and other labor intensive site built mounts for me.
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over from that late 90's period that has never been un-packed. No doubt the belt is probably taken on the shape of the pulleys by now.
Jeff Yago
DTI Solar
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generators,
batteries, special controls and custom mounting, so overall totals are slightly
higher.
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Although we have completed tons of grid-tie systems, and off-grid battery systems, this will be our first AC coupled system and there are still a few things we need to resolve. We will be using a 4 kW Sunny Island on a ground-mounted array about 150 feet from home. We are considering using a
most scrap yards pay by weight, do they want them drained of acid and
only pay the dry weight, or do they pay a fixed price per battery?
Any other options?
Jeff Yago
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, or
they can give you a CD of all input data which can then be entered into your
own software and do this yourself. However, don't be surprised if you have to
go back to step #1 above!
Jeff Yago
DTI Solar
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t.
Thanks,
Jeff Yago Netscape. Just the Net You Need.
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been used to
weed out those not really serious.
Considering we get lots of sales leads from other web sites that do not charge
anything, and have lots of work already, have any of you actually used one of
these pay for leads web sites and found it to be as good as the hype?
Jeff Yago
DTI Solar
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