Jeff,
I've installed a few SQ Flex. There is no need to use Grunfos panels. I
generally shoot for a reasonably hi voltage, say 130 to 170 vdc when going
array direct (at least for more rigorous pumping requirements). The pumps will
work (and seems do do good ) at even lower voltage , 60 is a lo
On Jun 10, 2010, at 7:57:53 AM, "Kelly Keilwitz, Whidbey Sun & Wind"
wrote:
PV Watts VASTLY underestimate PV production in our area.
PV Watts underestimates in Central Ca too.
Don
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On Jun 9, 2010, at 10:47:43 AM, "August Goers" wrote:
maybe Xantrex has fixed it by now?
Unlikely, since I continue to replace several sites a 2nd and in one case three
times.
Don L
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On Jun 9, 2010, at 8:22:12 AM, "Kelly Keilwitz, Whidbey Sun & Wind"
wrote:
Thanks, Joel
How about PV systems away from the coast, in a hotter, dustier
location, like Bakersfield, Fresno, Sacramento, Palm Springs,
etc?
In central CA we do a little better. I casually monitor several sy
On Jun 7, 2010, at 8:41:58 PM, "Philip Boutelle"
wrote:
I'd be curious to hear what anyone else has experienced with eGuage
Thanks Phillip and Wrenches,
I will give the eGuage a shot, thanks.
Don
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On Jun 7, 2010, at 2:17:08 PM, "Darryl Thayer" wrote:
has a lot more communication power than the TED
Two out of 2 attempts with the TED 5000 was enough for me. Crummy, the same
story over and over, "you have noise". Try another position, like bend
over!
I still dream of affordable moni
On Jun 7, 2010, at 11:36:18 AM, "Marco Mangelsdorf"
wrote:
one site having three failed buggers until I had had enough and
switched to a comparable SMA product.
This happened to me , after the third time I could not take the loss
of customer confidence and installed another product. My fear
SORRY FOR THE BLANK,
I am replacing some GT 3.0 multiple times. Though Xantrex pays the labor, this
is still a crummy deal. My customers really loose confidence the 2nd and 3rd
time , Bad for industry and my company.
Question, how many other installers are experiencing multiple failures with
On Jun 7, 2010, at 7:40:28 AM, "Darryl Thayer" wrote:
From: "Darryl Thayer"
Subject:Re: [RE-wrenches] Unshaded micro-inverter performance
Date: June 7, 2010 7:40:28 AM PDT
To: RE-wrenches
Hi I have such a set up but the monitoring would be the problem. I think I
would want a thing li
On May 21, 2010, at 9:47:59 AM, i2p wrote:
From: i2p
Subject:Re: [RE-wrenches] Two strings of Different Orientation
Date: May 21, 2010 9:47:59 AM PDT
To: RE-wrenches
On May 20, 2010, at 7:11:45 PM, "Bill Brooks"
wrote:
Maybe
it is a pipe dream, but I would like to
On May 20, 2010, at 7:11:45 PM, "Bill Brooks"
wrote:
Maybe
it is a pipe dream, but I would like to think that designers,
engineers, and
knowledgeable installers will one day be able to accurately understand
the
irradiance and temperature impacts on I-V curves so that manufacturers
will
be
I was intrigued by a previous thread on Google Powermeter and the TED 5000 and
tried to setup on two system.
In both cases, they did not work. I know they were installed correctly and
factory support has me moving wires, getting noise filters, using different
branch circuits, etc. In other wo
staller(tm)
------
Date: Mon, 17 May 2010 18:22:27 -0700
From: i2p
To: "List for complaining about anything RE."
Cc: re-wrenc...@lists.re-wrenches.org
Subject: [RE-wrenches] Whats with Kyocera?
Message-ID:
Content-Type: text/plain; charset="iso-8859-1
On May 17, 2010, at 8:23:04 PM, frenergy wrote:
AEE has been good to me over the years. They have several flavors of PVs,
though I believe no Kyo.
Bill
Feather River Solar Electric
Thanks Bill, and indeed AEE are champs and have helped me get ove\r the hump
and are supplying what I need
Without any word, they have stopped taking orders.! Not only could they not
fulfill an immediate need, they refused to even take a pretty nice order for
future delivery.
Who is still getting Kyocera? Whats the deal.? Are they dumping the small
accounts?
If you are still doing business w
On Apr 28, 2010, at 12:20:05 PM, "Allan Sindelar"
wrote:
Calling the old-timer off-grid 12V graybeard Wrenches...
Allan, I don't have the answer but imagine a lot depends on how much the aged
panels have dropped in output. In theory matching strings is important but in
some cases you do what
On Apr 21, 2010, at 11:07:07 PM, "Mendocino Solar Service"
wrote:
Then they credit our supplier who credits us. Another installer we know has
mentioned this has been a problem lately. Anyone else seeing this?
I've had no pump failures but the CU200 has failed twice. No help from Grundfos.
Don
On Mar 2, 2010, at 11:57:26 AM, "Darryl Thayer" wrote:
But I have tried a few times and I can not ever get a grid tied inverter to
sync with a generator.
It depends on the generator. Yesterday I ran a kohler 12 res with a parallel
connected sb7000. I monitored the freq during the connect time
On Jan 8, 2010, at 9:39:59 PM, frenergy wrote:
Don,
Seems the benefit of using % charge would go out the window if your
batteries were sulphatedjust when you would need the voltage based/temp
comp logic the most. No experience with your proposal though.
Bill
Feather River Sola
Input appreciated.
How well does the Pentametric work as a generator control. The spec
sheet states a control relay based on % charged is available. Any
experience using the Pentamatic as a gen start control. Does this
yield better battery control than voltage based approach?
Thanks for any
In a message dated 9/9/2009 6:34:01 A.M. Pacific Daylight Time,
ma...@cobaltpower.com writes:
Hmmm, that doesn’t look right; it says $1,500 maximum credit??
Mark
Cobalt Power Systems, Inc.
Mark,
Check out part 2. The first page covers basically efficiency stuff. Page 2
is for equ
In a message dated 9/1/2009 8:41:06 A.M. Pacific Daylight Time,
toddc...@finestplanet.com writes:
Why are we building these expensive systems for customers when this dude
sells em for $200.00! I wish on line advertisers would not perpetuate these
myths.
One born every second. Very ni
In a message dated 8/25/2009 6:43:33 A.M. Pacific Daylight Time,
m...@oasismontana.com writes:
maybe on the utility scale, but not on the micro-hydro scale.
Not really, Or only if you have free power to dump. Pge uses pumped storage
in their system in California but relies on night
In a message dated 8/19/2009 9:11:05 P.M. Pacific Daylight Time,
will...@millersolar.com writes:
The DC feeder may have an AC component imposed on it by the switching in
the inverter. We installed a large Hawker battery bank
Yup, and the point is that pulsating DC will induce eddy curre
In a message dated 8/19/2009 2:42:48 P.M. Pacific Daylight Time,
davecl...@fsec.ucf.edu writes:
1. Running the positive and negative wires through separate conduit
violates 300.3, and could cause eddy currents in the combiner/disc boxes.
No eddy currents with DC-- But not sure why al
In a message dated 8/13/2009 6:26:32 P.M. Pacific Daylight Time,
daryl_so...@yahoo.com writes:
The sizing of components is rather straight foward with HOMER
Daryl, Tell me a bit about Homer.
Don Loweburg
Offline Solar
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In a message dated 7/31/2009 8:00:57 A.M. Pacific Daylight Time,
nt...@earthlink.net writes:
The Delta surge suppressor had actually ruptured along it's radial seam, a
result I had always heard indicates a surge being absorbed.
Jim, good new -bad new. The arrestor worked but did not s
In a message dated 7/31/2009 7:21:49 A.M. Pacific Daylight Time,
aug...@luminalt.com writes:
I'm trying to gather a firm opinion on whether they are a complete waste
of $$$ and time or not. Good grounding seems I would guess is the best
protection.
Good grounding #1. I use ac and dc
In a message dated 7/21/2009 8:20:29 A.M. Pacific Daylight Time,
joel.david...@sbcglobal.net writes:
Any recommendations for a small
multi-meter with a small DC amp clamp for getting into tight spaces? As
always, thank you very much for your advice.
Joel, Not cheap but my fluke has
In a message dated 7/20/2009 12:13:01 A.M. Pacific Daylight Time,
ke...@whidbeysunwind.com writes:
IMO, ET's have a distinct advantage in our cool, windy, and low-snow
environment (northern Puget Sound).
HomePower has a great article on both flat plate and evac tube. Your
observatio
In a message dated 7/7/2009 5:26:25 P.M. Pacific Daylight Time,
al...@positiveenergysolar.com writes:
Specifically, are building authorities in other jurisdictions requiring
structural engineering work for this type of roof attachment?
Non of the jurisdictions in Central California r
In a message dated 6/23/2009 10:30:31 P.M. Pacific Daylight Time,
walt...@taosnet.com writes:
Automatic anything means the installer is always to blame. Good system
design puts some responsibility on the operator as well.
Listen to Ray here. This type customer can be a real pain--like loo
In a message dated 6/19/2009 9:39:22 P.M. Pacific Daylight Time,
joel.david...@sbcglobal.net writes:
I have some clients with shading problems that may be potential Solar
Magic retrofits.
Ok, so I've read the pitch from the Manu, however not sure even if the
published specs for sha
In a message dated 6/19/2009 10:37:22 A.M. Pacific Daylight Time,
peter.parr...@calsolareng.com writes:
Is anyone as bothered about this as I am?
Peter,
I think you are a little harsh. Marv has been a source of reliable info and
has helped me on projects.
Given the potential for "product
In a message dated 6/18/2009 7:40:45 A.M. Pacific Daylight Time,
ma...@berkeleysolar.com writes:
It looks like the average small guy installer who wants a separate
inverter/module combination is being hung out to dry while Enphase gets
into
bed with the big boys in pursuit of the complete
In a message dated 6/14/2009 10:09:27 P.M. Pacific Daylight Time,
al...@positiveenergysolar.com writes:
Keep the ideas comin’
How about a new control board from Staber?
Don L
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In a message dated 6/9/2009 1:27:19 P.M. Pacific Daylight Time,
joel.david...@sbcglobal.net writes:
Ezra, Congratulations and best regards,
Joel Davidson
Congratulations Ezra,
Don Loweburg
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fingertips.
(http:/
In a message dated 6/7/2009 1:45:42 P.M. Pacific Daylight Time,
electrich...@yahoo.com writes:
If we buy power from the utility per kW, my vision is some day we can
orchestrate the same. This will greatly improve our field of interest and
everyone benefits when performace meets the expecta
In a message dated 6/6/2009 5:37:17 P.M. Pacific Daylight Time,
joel.david...@sbcglobal.net writes:
Hi Don,
In 1983 Arco Solar and the Lightning & Transients Research Institute,
St. Paul, MN, presented a paper at the Greece PV conference titled
"Ability of Photovoltaic Modules to Withsta
In a message dated 6/5/2009 7:18:24 P.M. Pacific Daylight Time,
joel.david...@sbcglobal.net writes:
The same systems, after they were repaired and the ground rods were
connected together, survived every lightning storm for several years. I have
found that the same holds true for any equipment
In a message dated 6/5/2009 4:31:43 P.M. Pacific Daylight Time,
ke...@whidbeysunwind.com writes:
Mark,
Yes, it's confusing. Which is why I wanted to know what the Wrenches are
actually DOING in their installations to meet 690.47D.
On a ground mounted array using a driven rod I connect it t
In a message dated 5/15/2009 2:27:06 P.M. Pacific Daylight Time,
bri...@eagleroofing.com writes:
Flat Concrete tile or Spanish tile style roof, New Construction versus
Retro fit.
New or retro we always use posts and flashings. On some new we have been
forced to "double flash"
Don L
In a message dated 5/15/2009 2:09:07 P.M. Pacific Daylight Time,
richard.l.rat...@valley.net writes:
Has anyone tried this combination offgrid?
Marv told me that Enphase does sync to Sunny Island.
Don Loweburg
**Recession-proof vacation ideas. Find free things to do in
th
In a message dated 3/23/2009 1:55:09 P.M. Pacific Daylight Time,
t...@hughes.net writes:
I have a XW6048 working w/ a SMA + a xantrex suntie. I did have issues that
required me to install the SMA breaker at the top of the buss bar.I'll see if
it will work with a Enphase
Thanks Tump
Wrenches,
I have been doing some experimenting --testing compatibility between brands
of grid tie inverters and sign wave battery type inverters. I am hoping some
of you also have some experience here and we can compare results.
My interest is fueled by my belief that AC coupling is the id
In a message dated 2/26/2009 5:03:47 PM Pacific Standard Time,
billbroo...@yahoo.com writes:
It's tough to develop something that will work nationwide, but I've been
working on it for 5 years now and I think we're close.
Bill.
Go Bill !
Don L
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In a message dated 11/25/2008 6:21:53 P.M. Pacific Standard Time,
[EMAIL PROTECTED] writes:
I know this doesn't answer your questions, but for similar applications in
the future it would be good to take a close look at the SunnyIsland system.
They're cool
I too love the Sunny Island
In a message dated 11/20/2008 9:57:54 A.M. Pacific Standard Time,
[EMAIL PROTECTED] writes:
It opens when the genny is on) might be
easier than a NO relay on the grid-side. Anyone do it this way?
Kelly, I would do this and sleep at night.
Don
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In a message dated 11/19/2008 5:25:30 PM Pacific Standard Time,
[EMAIL PROTECTED] writes:
I can imagine, if the inverter tries to sync with the inverter, that the
voltage could rise, causing the inverter to disconnect, wait 5 minutes,
repeat.
Is there anything nasty that could happen?
In a message dated 11/4/2008 11:07:49 A.M. Pacific Standard Time,
[EMAIL PROTECTED] writes:
Don,
PV:WATTS version 1 is easiest to use and it is available at
_http://rredc.nrel.gov/solar/calculators/PVWATTS/version1/_
(http://rredc.nrel.gov/solar/calculators/PVWATTS/version1/) . It covers
In a message dated 11/4/2008 9:45:57 A.M. Pacific Standard Time,
[EMAIL PROTECTED] writes:
If really want to get serious, use PVSYST.
Hi Bill, Where is this available?. I'd like to check it out.
Thanks, Don Loweburg
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In a message dated 10/5/2008 1:49:06 P.M. Pacific Daylight Time,
[EMAIL PROTECTED] writes:
I am against burdening the next generation with another $10 billion debt for
a transitional technology like slightly cleaner vehicles. Let's make the
great leap forward and end our addiction to foss
In a message dated 10/5/2008 12:00:44 P.M. Pacific Daylight Time,
[EMAIL PROTECTED] writes:
Hi All in California.
What seems to be the best way to go on the two intiatives #7 and #10.
Hi Jay, I am not clear on 10 but think I understand 7.
It was basically written on the behalf of the
>I have guessed that the SW plus will not take AC into the output.
>
>Does anyone know differently or know for sure that it will not work?
>
>
>I just set up a sunnyboy 2.1kw feeding into the output of a stacked pair of
>SWs. Worked first time no snags. The one issue is setting up a dump
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