Dana,
Thanks for the input. Excuse me please, "OG jobs" are?
If the wire had been copper and didn't melt, but instead continued to arc,
would the resultant heat have eventually started a fire?
What type of splice was it?
Does no one else use Al for DC? Here in rocky Vermont/NH,
we use the same
The insulation on Al cable rated for direct burial is thick and tough. But,
DON'T direct bury it. Carefully pull it into correctly installed PVC conduit.
Use marker tape above the conduit, just below grade.
If you're in an area that doesn't experience ground frost, MAYBE, VERY
CAREFULLY, plant the
Lee,
In Maryland?
Dick Ratico
Solarwind Electric
Bradford, VT
--- You wrote:
Wrenches,
Has anybody come across an analysis of the potential damage to a flat
roof from snow on solar modules melting to form an ice layer on the
roof and then forming subsequent layers as more snow melts or slid
Mick,
SMA has something:
http://www.sma.de/en/products/off-grid-inverters/smart-load.html
Dick Ratico
Solarwind Electric
Bradford, VT
--- You wrote:
Step three is most intimidating to me: We need a way to control 240 volt AC
heating elements in a fine pulse width modulated PWM fashion, to prote
Marco,
Here's a link to some info from Thomas & Betts. The table you're looking for is
at the bottom of the PDF.
http://tnblnx3.tnb.com/emAlbum/albums//us_lc_fittings/gm102_62_67_lc1.pdf
Or, call the electrical distributer you use. They may handle a different brand.
Dick Ratico
Solarwind Elect
Drake,
--- You wrote:
I called her back just now, and the voltage readings on the Mate, MX
and Trimetric all match. Humm.
The batteries are 4, 4 1/2 year old, U.S. Battery L-16s wired in 24
volt configuration. It seems that I remember postings of Wrenches
having problems with these batteries
Marco,
--- You wrote:
I looked at the Thomas and Betts spec sheet kindly supplied by Ratico on
their LB offerings and there was no notation of max conductor sizes that I
could find.
--- end of quote ---
Look again.
http://tnblnx3.tnb.com/emAlbum/albums//us_lc_fittings/gm102_62_67_lc1.pdf
It's
Marco,
If I understand your question, not sure I do, my answer is, there is no
requirement for such a relationship.
Repeat to yourself, what Darryl said:
Always check rotation either with a rotation meter or with a motor by bumping
the motor to check its rotation.
Dick says, ..Pay absolutely
Most Esteemed Wrenches,
Peak Copper?
Please read:
http://en.wikipedia.org/wiki/Peak_copper
http://en.wikipedia.org/wiki/Bauxite
http://www.guardian.co.uk/world/2010/aug/23/miners-trapped-alive-chile
There's a copper Superfund site 30 miles from my home here in VT.
Let's use our resources wise
Maybe another possibility if the generator is a non-starter:
1) Sealed Batteries (no maintainance) appropriately sized for the running load
only, no motor starting surge
2) Single Sunny Island 5048 inverter (the most reliable IMHO)
3) 6 kVA autotransformer (boosts SI output to 240V)
4) 240V single
Hi Nik,
Some questions:
Is this a 3 phase service?
Details on the UPS; brand, kVA, age?
Breaker sizes for the circuit(s) supplying the UPS and fan?
Details on the air conditioning system and fan. Are they powered through the
UPS?
Dick Ratico
Solarwind Electric
--- You wrote:
Wrenchers,
We i
Jeremy,
Not sure if this would work. but How about feeding the hydro output
into a large industrial battery charger or chargers. They are available in three
phase.
Modify the charger by eliminating the stepdown transformer. Basically what you
need is a rectifier. Then feed the resulting D
Have you called SMA directly? SMA has other neat stuff that's only available
outside the US. Apparently they don't think there's enough demand here to go
through the listing process.
Dick Ratico
Solarwind Electric
--- You wrote:
Wrenches,
A SMA CD with their 2009-2010 product guide has a Sunny B
Brian,
A GEC with no splices, or only irreversable splices, has only two ends. If you
need to find them to check their integrity, you know where to look.
No argument about acorn clamps. Exothermic welding might someday be required.
Dick Ratico
Solarwind Electric
--- You wrote:
Inspectors in Ariz
Hey Richard Dean,
Matt's post has a lot more tech in it than yours, which has zero. This list
already has a moderator, and a great one at that.
I look forward to every post of Matt's. He is exceedingly generous with his
knowledge, time, wisdom and wit.
If you don't like it, don't read it. Shs
Chris,
You've probably already considered and rejected this... Unisolar PVL modules on
standing seam roofing. Solves the structure & wind problems. Goes fast if
installed on the pans before they go on the roof. Price is pretty good per watt
now.
Can't beat the look. Made in USA. I think the only d
Chris,
You most likely recall, there was a thread here discussing special standing seam
attachment details required with the S-5 product.
With your weather, those might be critical for the roofers to follow, should you
go that route.
I was unaware of the white spotting from hail you've seen on th
Phil's post is right on.
What is the rafter spacing, 16", 24"? Is it really half inch plywood?
What does the grade stamp say? Half inch maybe works in western Washington,
maybe not in Montana or Vermont. Add point loads to 1/2 inch from the PV?
I don't think so. Block under the plywood with 2x6
If I remember correctly, we worked through this in 2008. A supply side
connection is NOT considered a separate service. And, seven disconnects is one
more than six, and is NOT code compliant.
Dick Ratico
Solarwind Electric
--- You wrote:
I've made similar observations as Matt before about adding
Hi Mark,
Having learned of Eternabond on this list, we've since used the doublestick
version on two, raised rib type metal roofs. Of course, it's way too early to
tell how it will perform over time, but we were quite impressed during
installation.
It's ferociously sticky. You'll want to place
Hi Kirk,
See 2008 NEC 225.30 thru 225.40. As I understand it, separate disconnects,
up to six for each array, located on the main building, are required and
appropriate.
Dick Ratico
Solarwind Electric
--- You wrote:
Hello,
I'm working on a system which will have 5 kw on an outbuilding and 20k
Hi Vince,
I don't know anything about Energy Recommerce, but a search of their website did
not result in finding an installation manual for their combiner box, only a
datasheet. You stated countless hours were spent on the phone with their
technicians. If it was my job, at this point, I would want
Dan,
I'm confused. You wrote:
"I'm measuring 125vac RMS off the honda 3000i, Hz is around
2.2khz (ripple I assumenot a fancy DC clamp meter, Tenma, as it can
be dunked in the river at any time during transport -- 2 mile canoe
trip, then 4 mile backpack trip to the site, after the 150 mile
Hi Jeff,
Perhaps of some help, from the SMA German website:
http://files.sma.de/dl/5615/INSELNETZ-PL-UEN105010.pdf
Dick Ratico
Solarwind Electric
--- You wrote:
Thanks for the input! Was nice to see you at Intersolar.
WELL This is the Bahamas so it's the Canadian Code. So let's say
everythi
As Dan points out, 250.52(A)(3) specifies several installation requirements in
order for a concrete encased electode to qualify as a permitted Grounding
Electrode. A pole mount foundation would certainly qualify if it met those
requirements.
Even if the requirements are not met, IMHO, any opportun
Hi Joel,
I've done business with these folks. Good products and fast service. They
probably have everything you need.
http://ledsupply.com/
Dick Ratico
Solarwind Electric
Bradford, VT
--- You wrote:
Wrenches,
Who is a good supplier of low-power consuming individual LEDs. Thank you
very much f
And here's a terrific resource for anyone interested in DIY LED projects:
http://forums.mtbr.com/lights-diy-do-yourself/
Dick
--- You wrote:
Hi Joel,
I've done business with these folks. Good products and fast service. They
probably have everything you need.
http://ledsupply.com/
Dick Ratico
I may be missing something here.. but, for a manual switching solution, why
not use two standard 600V DC discos. Put the PV to the top of both, load side of
one goes to the battery inverter, load side of the other to the grid tied
inverter. Turn one off, turn the other one on. Not as elegant as
Fellow Wrenches,
I would welcome some feedback on this one:
I may be "adopting" an eleven year old, Y2K, grid tie with battery back-up
system. It consists of 12 - Astro-Power 120 modules, installed in 2000, 12 -
Evergreen EC-110 modules installed in 2004, only one MX60, which controls BOTH
sub-a
Todd,
I asked Surrette about their lead calcium batteries this morning, right after
reading your post. Here's their reply:
I'm afraid our flooded calcium line is not yet available. Product testing went
very well but at this time our present high demand for our other product lines
has prevented u
You might reply, that while it certainly is the case that a CODE REQUIRED
disconnect be readily accessable for obvious safety reasons, a disconnect that
is not required by Code, but is installed anyway for maintainance purposes, need
not be.
Dick Ratico
Solarwind Electric
_
Hi Wrenches,
This is a repost. No replies the first time, so I'm trying one last time.
I may be "adopting" an eleven year old, Y2K, grid tie with battery back-up
system. It consists of 12 - Astro-Power 120 modules, installed in 2000, 12 -
Evergreen EC-110 modules installed in 2004, only one MX60
ed a genny as back up anyway for long power outages during storms, so
get a natural gas/propane unit as back up instead of batteries.
>
> OK you asked,
>
> jay
>
> peltz power
> On Nov 17, 2011, at 4:03 PM, Richard L Ratico wrote:
>
>> Hi Wrenches,
>>
>> T
Mac,
You have already received great advice, different strokes for different folks.
Three things I would add:
Accepting an offgrid customer is a bit like getting married. It is a long term
commitment. You want it to be a happy one. What does that mean to you?
In my experience it is prudent to ex
Dave,
We haven't seen this particular problem with the FM80, but we've had others.
Specifically, we've seen the "locking up" Howie reported. The customer is now on
their third unit (firmware version 001.009.017). This one puts out 90 amps
occasionally. I don't think it's supposed to do that. As I
Bill and Matt,
Meggering is hard on insulation. It may, or may not, be hard or harder on PV
cells that is the question. Could you guys please elaborate on that?
Dick
Solarwind Electric
P.S. Bill, your recent class here in Vermont was great. Thanks.
---Bill Brooks wrote:
Just to add punct
Kent,
I looked at the photo of that expansion coupling and initially thought, "That'll
work". But if the conduit was RMC OR IMC all the joints would have been
THREADED into couplings, and even if by mistake they were not wrench tight, they
would not have pulled apart. Even if strapped too tig
Hi Bob,
In this case it probably has to be a "bandit". I don't believe 600V DC breakers
are available yet.
Dick
--- You wrote:
The DC disco coming off the PV breaker box might be a good idea. With this
case showing that. We know that we can open the box and kill all the
breakers but few others
er notice if an
expansion joint wouldn't work? And then not use it. it just wouldn't make any
sense to install it in if it didn't work.
Kent
Richard L Ratico wrote:
Kent,
I looked at the photo of that expansion coupling and initially thought, "That'll
work". But
Orion,
Check this out:
www.freewatt.com/
Made in the USA. It's for real. Honda makes the genset part of it. Might work
well offgrid in an AC coupled system. Relatively new. Might not be available in
your area yet.
Dick
Solarwind Electric
--- You wrote:
Does anyone have any experience with
Hi All,
Has anyone tried this combination offgrid?
Dick
Solarwind Electric
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In certain parts of the US, "chipmunks", the ones with stripes (they sing,
remember Alvin?), are referred to as "ground squirrels". In other areas, "ground
squirrels" are known as "chipmunks".
In this part of VT, there are "grey squirrels", "red squirrels", "chipmunks",
"ground squirrels, "deer mi
Hi Drake,
Could you please provide more information,
array size, inverter make / model, conductor size,
breaker rating, breaker brand?
Dick
Solarwind Electric
Bradford, VT
--- You wrote:
If I'm following this thread correctly, the
relay is to break the flow of AC current to the
battery ba
Kelly,
If I understand your situation, the AHJ is allowing you to use
the existing grounding electrode/s as the (new for 2008) required
array electrode, rather than adding an additional electrode closer to the
array.
He does want an additional GROUNDING ELECTRODE CONDUCTOR, sized appropriatel
Hi Drake,
I'm sending you some attachments off list as well.
They are Sunny Boy Specs from the SMA Installation Manuals,
which are more complete than those on the SMA data sheets.
Note, the Maximum Output Fault Current for the 3000 & 4000 is 30 amps,
while Maximum Overcurrent Protection is 30 A
Hi Drake,
Up to now, like you, we've been using the SMA DATA SHEETS
(the glitzy ones with the color graphics) to size our wiring and
breakers. But, those sheets make no mention of a
MAXIMUM OUTPUT FAULT CURRENT.
MAXIMUM OUTPUT FAULT CURRENT is specified only in the very last pages
of the inst
Kelly,
I always install a grounding electrode at the array. I always run a continuous
(not spliced), properly sized, or oversize (usually #4), bare, copper conductor
from the array modules and frame, to that electrode, then continue it,
direct buried, to all of the other grounding electrodes i
e AJH, if
any.
Mark Frye
Berkeley Solar Electric Systems
303 Redbud Way
Nevada City, CA 95959
(530) 401-8024
www.berkeleysolar.com
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Richard L
Ratico
Sent: Frida
Ian,
I like Kohler too, but, last time I checked, you needed at least
the 15KW model to get an enclosure, 1800 rpms and an onboard alternator.
The Backwoods Solar Catalog recommends the Kohler 10ERG.
It may not be available with an enclosure. According to them, it's
classified as mobile, so,
Allan,
She may be habitually overloading the washer with clothes, pushing it towards
a locked rotor situation. According to NEC Table 430.251(A),
the locked rotor current for a 1/2 horsepower motor is 58.8 amps, or 7056 watts.
The new Outback FX2524T will surge to 4800 watts, while her old DR242
Weighing in ...
1)At a recent SMA Inverter Training, we were cautioned that the Deltas were not
UL listed. Like many of us, I was already well aware of that. What was
interesting, was the trainer specifically recommending we NOT use them, for
reasons related to liability.
2)At a different traini
Bruce,
This sounds like a good situation for a line side tap,
rather than going to all the work of replacing the panel.
Turn off main breaker at the pedestal, no need to touch the meter.
At the house, pull the feeder out of the panel.
Put it into a proper new junction box. Splice
one set of ne
Hi Nick,
I may not be entirely clear on your situation, but I interpret 690.64(B)(2),
literally or otherwise, as meaning a busbar, or a conductor used in the SAME WAY
as a busbar, rather than as a feeder. By that, I mean the conductor would have
the solar breaker's energy tapped into it in such a
William,
I stand corrected. Thank you.
This is not a supply side tap. I should have said it was a tap on the supply
side of the panelboard main breaker. That said , I think it works and meets
code, provided the conductors spliced to the feeder are properly sized. The
panelboard busbar is protect
William,
I don't know if I've solved Brian's dilemma yet either. But, with regard to your
example below, if the 100 amp meter main is accepting 20 amps, or even all of
the 50 amps of PV, that would mean that the house, at that moment, presented no
load at all, and that all the PV would be backfeed
Brian, William & Allan,
Perhaps I've misunderstand the specific distribution equipment involved. I have
assumed the main SERVICE consisted of a meter and single, 100 amp main breaker,
as a combo unit or as separate enclosures, but with no busbar provision for
additional breakers there at the pedes
Wlliam,
If there were to be a short circuit in the feeder or the main service panel (
the one with no extra breaker spaces ), the solar's maximum 50 amp contribution
would be about the last thing to be concerned about. A short is going to result
in perhaps 1000s of amps coming from the grid into t
William,
You may well find inspectors and others who will agree with you on this. I
remain firmly unconvinced. Yes, the code may be taken literally. . . . .and
also, sometimes, be taken out of context. I believe you are doing that here. It
is impossible to use words in such an airtight manner that
We've been well served by both DC Power Systems and AEE.
Dick Ratico
Solarwind Electric
Bradford, VT
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I believe the Sunny Island 5048 can be configured to remain "online" with up to
three cell failures. (Page 90, Sunny Island Manual). Of course, it is a 48 volt
inverter.
Dick Ratico
Solarwind Electric
--- You wrote:
I used to think that one string was optimal; until I had a single cell failure
ta
Perhaps off topic, it's been said here previously by others, but is worth
repeating, good old Vaseline, coating all exposed metal surfaces at battery
terminals, totally eliminates the corrosion issue. It's benign, inexpensive and
available everywhere.
Dick
Solarwind Electric
--- You wrote:
Yes,
SMA specifically says they can go to 42V.
This is a link to the SI5048 Installation and Instruction Manual:
http://download.sma.de/smaprosa/dateien/7995/SI5048U-TUS091012.pdf
It is a 6 Meg. file.
See page 92.
Vaseline & lead. I have observed what may be lead oxide on battery terminals.
It's grey
Bob Ellison is in Northern New York. I'm in Vermont. We usually have to thaw the
Vaseline over the woodstove. Makes great hair gel too. Don't bother with the
gloves. If we mix in a little maple syrup it sticks wicked.
Dick Ratico
Solarwind Electric
--- You wrote:
Yes, I hate Vaseline - it has a m
William,
No direct specific experience with this, but, respectfully, what is the problem?
The code sections seem clear and not unreasonable nor arduous.
Dick Ratico
Solarwind Electric
--- You wrote:
Friends:
I just received a plan correction for a grid-tie permit application wherein
the ins
back. It may be some kind of power trip as we have been at odds
over many issues. I will report back.
William Miller
Millersolar.com
On Dec 11, 2009, at 6:05 PM, richard.l.rat...@valley.net (Richard L
Ratico) wrote:
> William,
>
> No direct specific experience with this, but, re
Fellow Wizards,
We've found enema / douche bags, also known as "combination bottles" to be
"effective" in this application. They come with an valve / shutoff that's simple
and works great. It's a good test of a client's willingness to accept reasonable
suggestions to see if they've got one the nex
st do that?
>
>Dick
>
>
>
>--- You wrote:
>Dick:
>
>I too am mystifed. I sent a request for clarification but have not
>heard back. It may be some kind of power trip as we have been at odds
>over many issues. I will report back.
>
>William Miller
>Mill
An inspector can bump absolutely anything. That doesn't mean they've correctly
interpreted the code or made a decision that increases electrical safety, only
that they have the authority to call it anyway they like.
What constitutes a long DC circuit in a building? Ten feet, fifty feet? What if
it
William,
Not sure I understand how buried PV runs protected by touchsafe fuses in
combiner boxes at the array and GFCI protection at the inverters constitute a
fire hazard.
That's not saying I disagree with your disconnect here. I don't. If it was a 1kW
system, would you still install one? I would
William,
It is common in our area to install underground, unfused, transformer secondary
laterals. The utilities require 3 feet of cover and marker tape located 12"
below grade. I can't find a requirement for marker tape in the NEC. That's not a
reason not to use it. It's inexpensive & available
Lee,
The Sunny Island will shut down entirely to protect the batteries.
Dick Ratico
Solarwind Electric
--- You wrote:
Wrenches.
I have a customer with a stand-alone system with an XW inverter, XW
controller, pole mounted array of four 235-watt panels, and 4 of the
8D gel batterie
Amen.
Dick Ratico
Solarwind Electric
--- You wrote:
All,
I'm a little late on this thread, but wanted to give some contrary
experience. We have, maybe, 15 BFS watering systems out there, dating back 5
to 6 years. Although I've experienced some issues in getting watering
systems set up properly, o
Nik,
I haven't run into this myself, but...
I think what you have is not really split phase, but two phases, out of the
three available, from the three phase system in the main building. If that is
the case, those legs/phases are 120 electrical degrees apart, rather than the
180 degrees you would
Hi Ron,
One of our clients claims to be "sensitive" to exposure to EMR. I was initially
sceptical, but have come to believe that considerable variation exists in the
way individuals react.
In our case the objection was to a wireless modem.
Sensitivity to high frequency audio is likewise variable
Huh? DC Power Systems stocks "peel and stick" Unisolar in 4 lengths, from 9' to
18'. Under $3.00/W.
Great product. Performs well. Requires a standing seam metal roof.
Best look available in solar IMHO.
Dick Ratico
Solarwind Electric
Bradford, VT
--- You wrote:
The US-64's were on their site for 3
Seconded! AMEN.
Dick Ratico
Solarwind Electric
--- You wrote:
Steven,
A Line Side Tap, by nature, allows us 100% of the Service Entrance Conductor
Ampacity. This typically ~equals Main Breaker rating, but is regardless of
the Main Breaker rating or size of Loads, it's about the conductor. NEC
IMHO it seems like we're all really on the same page here.. trying to make
the the most out of the the resources we have available to work with..sun
hours, pv, copper, labor, dollars, etc. Job specifics come into play. There are
definitely times when a detailed cost/ benefit analysis is cal
Hi Dave,
Depending on the house loads, you might very well do without an additional (very
expensive) auto transfer switch. The inverters, of course, already have one.
Just leave the Sunny Islands connected 24/7. The transfer from grid to battery
is then milliseconds and flawless. The 56 amps cont
Peter,
May be mistaken, but I don't think "Tape" is mentioned specifically anywhere in
the code. What kind of splices do you have in mind? Not wirenuts I hope? One of
my pet peeves, sorry.
I don't have my 2008 Codebook handy. 2005 NEC Article 110.14(B) requires, "All
splices and joints and the fr
predicted, while resistance across connections was higher.
R. Walters
r...@solarray.com
Solar Engineer
On Apr 25, 2010, at 6:02 AM, Richard L Ratico wrote:
> Peter,
>
> May be mistaken, but I don't think "Tape" is mentioned specifically anywhere
in
> the code. Wha
0, at 6:02 AM, Richard L Ratico wrote:
> Peter,
>
> May be mistaken, but I don't think "Tape" is mentioned specifically anywhere
in
> the code. What kind of splices do you have in mind? Not wirenuts I hope? One
of
> my pet peeves, sorry.
>
> I don't hav
I second Mike's suggestion for sunglasses on startup. Wait, better go
for welding helmets. Those DC arcs are bright. And I bet they didn't use listed
electrical tape either! :-) Thanks for sharing this one.
Dick Ratico
Solarwind Electric
--- You wrote:
Typically those types of modules a
Wow, this could be a hairball. Needless to say, we've all probably already done
this, more than a few times. Butas a former carpenter though claiming no
expert truss knowledge, my sense is that the top chord of the trusses should be
in compression. Therefore, a 3/8" diameter lag, for instan
Just thinking out loud here.if we all sort of sit back and wait for the
flames, is that where we really want to be? Granted, the party responsible for
this debacle has dug their own hole, but I don't relish the thought of the waste
of a building, the danger involved in fighting a fire, the poll
My $0.02:
I like the idea of bonding all the electrodes with direct buried bare copper. I
always do it, typically with #4. I would use #2 if it were not so much more
expensive. These are residential jobs. If I had large job, like the subject of
this thread, no problem with the #2.
If you only have
Bill,
Your branch circuit breaker is pretty small.
Are you energizing both transformers simultaneously? If so, it might help to
energize them individually.
The branch breaker can be up to 250% of the step up transformer's primary
rating. 10kVA/240V=41A.
41A x 2.5=100A. (round numbers). To do this
tching I
might have better luck.
William Miller
At 06:23 PM 5/12/2010, Richard L Ratico wrote:
>Bill,
>Your branch circuit breaker is pretty small.
>Are you energizing both transformers simultaneously? If so, it might help to
>energize them individually.
>
>The branch breaker
buffering...
I wonder if I use a large solid state relay with zero crossing switching I
might have better luck.
William Miller
At 06:23 PM 5/12/2010, Richard L Ratico wrote:
>Bill,
>Your branch circuit breaker is pretty small.
>Are you energizing both transformers simultaneously?
ip in the input power result in another big surge
requirement?
Mick Abraham, Proprietor
www.abrahamsolar.com
Voice: 970-731-4675
2010/5/13 Richard L Ratico
> Sorry for the additional post here, but it includes a typo correction:
>
> Bill,
>
> Not a lot of personal experience with
Fronius 50 Hz unit with a stepdown transformer?
Dick Ratico
Solarwind Electric
Bradford, VT
--- You wrote:
Wrenches,
I need a 5 kW grid-tie inverter with 110VAC/50Hz output for a job in the
Caribbean. SMA 50Hz inverters are sold out for the rest of the year. Suggestions
please?
Best regards,
Joe
Jason,
Schott's large module series might work for you.
280W to 320W though.
Dick Ratico
Solarwind Electric
--- You wrote:
Can anyone help me find a 230W 48V module mfr/model? I am trying to meet
a firm specification for a single panel system to charge either 36V or
48V battery banks.
P.S. I'm
Does anyone have experience with the Morningstar Tristar-MPPT-60 charge
controller?
Thanks in advance.
Dick Ratico
Solarwind Electric
Bradford, VT
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William,
It's my understanding the SMA Sunny Island inverters do this as well.
Dick Ratico
Solarwind Electric
--- You wrote:
Darryl:
There is a scenario in which problems occur: If your loads exceed the
generator capacity, the Outback system will fail. The Xantrex inverters
are superior in
All,
For longer, underground, array to inverter/charge controller runs, are folks
using aluminum or copper?
Last time I compared prices, for the same ampacity, Al was 1/3 the cost of Cu.
Dick Ratico
Solarwind Electric
--- You wrote:
Hi Dana;
I'd say that's a bit overkill for today's market. Tha
Bob-O,
Then again, SOME of us don't buy in Walmart either.
Just say'in. Sorry Michael. Couldn't help it.
Dick Ratico
Solarwind Electric
--- You wrote:
Then again, SOME of us don't buy Chinese goods.
On Aug 8, 2013, at 9:53 AM, Ryan wrote:
To echo Tom the XW is probably the best product for the
I've got two Hawker installs out here, a 48 Volt and a 24 Volt system. Both are
going on 6 years or so. Clients are happy, I'm happy. It does resemble work to
move and place them. We typically use "Egyptian" techniques when heavy equipment
isn't available or appropriate. Inclined plane, big pry bar
Allan,
According to Wikipedia, it is not a typo. It is, however, an excellent example
of lousy technical writing / documentation. You are correct to zero in on it
What Outback seems to have done, is switch from a four line drawing on the input
side of the circuit to a one line drawing on the outp
One out there, now about 7 years. Customers are happy. No problems.
Dick Ratico
Solarwind Electric
You Wrote:
Wrenches.
We have sold four Sundanzer chest refrigerators or freezers over the last ten
years. All have worked without a hitch. Today I got a call from a customer
asking about DC refrige
Nik,
Looks to me like there may be a major bird flyway between the dormers directly
over the bottom row of modules. A google search seems to confirm a correllation
between between bird droppings and copper roof staining. I agree with August,
this doesn't seem to be an issue caused by dissimilar me
As concerns standby loss, I can't speak to the others, but the Rinnai has a
simple on/off button on the front of the unit. A remote controller is available
which also provides the switch. It does take afew seconds for the unit to boot
up. Up to three remotes may be installed, making the on /off ope
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