I had a question about the new law I couldn’t answer.
Is the PV requirement effective when the permit is submitted, or when is it
pulled (i.e. approved) for new residential construction or when the permit is
finaled by all parties, or when the Certificate of Occupancy is issued, or when
the res
I did an install in 2007 for a customer in the High Desert just outside of
Hesperia, CA. Since he was a General Electric employee at the time, he had
access to the GEPV-055 module. We installed 102 of these puppies (three strings
of 34 modules each) into a new, flat concrete tile roof. It looked
I replaced a number of AES (?) 120 Vac 1 kW grid tied inverter back when I was
just starting out (2000) There was one poor design element with the DC fuse
holders that I discovered and was able to work around, but I usually advised my
clients to swap these inverters out for the SMA SWR 2500 and
-- people at SMA Sales and presales Tech Support , and not one person
claimes to have knowledge of the Sunny Boy Storage system. Have I gone blind,
dum and crazy?
I understand that StorEdge product has traction and I am ready to jump ship.
What am I missing?
Peter Parrish
Peter T. Parrish
e spelling and typos.
-- Original message--
From: Peter Parrish
Date: Sun, Dec 9, 2018 1:17 AM
To: RE-wrenches;
Cc:
Subject:[RE-wrenches] Portable Power Centers
We are working with Turning Point Foundation a 501(c)3 to provide off-grid
power for their River Haven project which is providing
is.
Bill Dorsett
Flint Hills Renewable Energy & Efficiency Cooperative, Inc.
“Start where you are. Use what you have. Do what you can” Arthur Ashe
1715 Leavenworth
Manhattan, KS 66502
www.fhreec.org
785/539-1956 Office
785/564-2583 Cell
wmdors...@cox.net
From: RE-wrenches On Be
We are working with Turning Point Foundation a 501(c)3 to provide off-grid
power for their River Haven project which is providing transitional housing for
homeless folks in the Ventura CA area.
The site is truly off-grid and currently uses propane to power three
refrigerators and cook stoves. T
I have a client with a Fat Spaniel box. They can't remember their user name and
password. I did a little digging and I came to the conclusion that the Fat
Spaniel product is no longer being sold, no longer being supported, and their
cloud server has been taken down.
Am I right -- on any account?
I have been servicing this customer for over 12 years now, going through a
various problems with the Fronius IG-5100 inverter. We never had to get a
replacement but as I see in my files we did swap out a daughter board.
The system is comprised of three strings of 34 each GEPVp-055 modules. We ha
Jason,
I’d like to read the .pdf you refer to if that would not violate a
Non-Disclosure Agreement. I am on the California Solar & Storage Association
(formerly CalSEIA) Storage Subcommittee.
Regards,
Peter T. Parrish
SolarGnosis / California Solar Engineering
1107 Fair Oaks Ave. Ste. 351
Sout
Ho Jay,
I’d be extremely careful.
First with your pricing, don’t forgive some of your legitimate costs. Add
Shipping & Handling and taxes to all equipment purchases. Carefully estimate
your labor costs, travel to Mexico, shipping across the border to Mexico. Are
there any import costs? What wi
I am working with a customer who is doing a complete remodel, and upgrading to
PV and Smart Energy Storage. The house was broken down to floor joists, open
studded walls and open roof rafters.
The client wanted a 8 kW/16 kWh Smart Energy Storage system and a 10 kW-ac PV
system. The Main pane
I am late to this thread. But why not use a SMA Tri-Power or the equivalent
inverter from Solectria and others? The two mentioned are great inverters and
tested in the field for at least 18 months now.
- Peter
Peter T. Parrish, Ph.D.
President, SolarGnosis
1107 Fair Oaks Ave.
I believe Milbank is one of the manus that sells a meter enclosure that is
listed for supply-side connections. I bought an enclosure a while ago that
was not only listed but came with an extra pair of lugs. I will research the
matter and confirm Milbank or provide the correct manu.
- Peter
Peter
a 120VAC load without one and you
will see what I mean.
William Miller
Gradient Cap_mini
Lic 773985
millersolar.com <http://www.millersolar.com/>
805-438-5600
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Peter Parrish
Sent: Thursday, Ap
ctrician stated quite emphatically that they didn't. I
thought that the derating calcs for CCCs were based solely on ohmic losses
and phasing was not taken into account.
Does the NEC provide guidance on this latter situation?
- Peter Parrish
Peter T. Parrish, Ph.
Can’t seem to find a SunEye product on the Solmetric website. Is it tucked away
on the Vivent site or somewhere else hard-to-find?
Peter T. Parrish, Ph.D.
President, SolarGnosis
1107 Fair Oaks Ave.
Suite 351
South Pasadena, CA 91030
(323) 839-6108
peter...@pobox.com
You might try Borrego Solar.
Peter T. Parrish, Ph.D.
President, SolarGnosis
1107 Fair Oaks Ave.
Suite 351
South Pasadena, CA 91030
(323) 839-6108
peter...@pobox.com
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Daniel Tittmann
Sent: Tuesday, March
Let me wade in here leading with my chin.
(1) "Li batteries" come in a bewildering number of chemistries. Try this on for
size: LiCoO2 (LCO), LiNiCoAlOx (NCA), LiMn2O4 (LMO), LiFePO4 (LFP), LiNiMnCoO2
(NMC), LiFeMnPO4, etc.
(2) Each chemistry has its own virtues and vices: voltage per cell, cy
17, 2016 at 12:06 PM, Peter Parrish
wrote:
I have a residential client who wants a grid tied PV system with battery
backup. The client wants everything to be top of the line: Sunpower modules.
Tesla Powerwall batteries.
Unfortunately, I have been spending time recently researching &quo
I have a residential client who wants a grid tied PV system with battery
backup. The client wants everything to be top of the line: Sunpower modules.
Tesla Powerwall batteries.
Unfortunately, I have been spending time recently researching "smart energy
storage" for commercial applications focu
My 2 centavos. Stick with them. I prefer their approach over SMA.
- Peter
Peter T. Parrish, Ph.D.
President, SolarGnosis
1107 Fair Oaks Ave.
Suite 351
South Pasadena, CA 91030
(323) 839-6108
peter...@pobox.com
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenche
only had the option to leave a message and after about 1 hour on hold I did
so. That was a week ago. I had not heard of calling at a specific hour. Is this
something they suggest? Where did you hear of this 0700 calling time?
Larry
On Dec 8, 2015, at 3:00 PM, Peter Parrish wrote
Phil Undercuffler has the title of Chief Technologist, Product Development – or
something to that effect. I suggest not trying to reach him with
run-of-the-mill issues, but if your want to engage him about future product
development, or to get confirmation about utility issues, NEM 2.0, industry
I have a client who is on their third IG5100. The latest replacement was due to
bad fan (one of them). The location for this inverter is in the shade with lots
of air circulation. Does anyone know what’s wrong with this model?
- Peter
Peter T. Parrish, Ph.D.
President, SolarGnos
One way, if you want the feed to be on the customer’s side of the meter, is to
install a new service panel with meter jaws that are designed to be “double
lugged”. That is the two lugs on the customer side have accommodation for a
solar backfeed. There are rules about the OCP and disconnect, but
I have recently had a spate of warranty (and out of warranty) calls from
customers with Fronius IG inverters (from the 2000 to the 5100). In working the
problem, Fronius has had fairly good technical support (initially) BUT things
have gone downhill from there. They have for example, sent a GFDI
I too am interested in LiFeP batteries. I think we need some more
information on charge/discharge cycles. I've bits and pieces, but there must
be some solid data from Panasonic or one of the other LiFeP manufacturers.
Such as,
Recommended charge cycle
Maximum discharge rate
Low voltage disco
I recently read a short piece that caught me up short, and I quote:
“The fast dropping cost of solar, while a huge boon to the adoption of solar
PV, has counter-intuitively altered design parameters. No longer is the
north-facing roof considered unusable because limited application in less-tha
I have recently been in discussion with a company that builds a large number
of medium-sized PV ground mount system (30 kW to over 100 kW). They claim
that they have been seeing something on the order of 0.7% annual degradation
in the output of their systems due to intrinsic degradation in the PV
m
Wrenches,
Many years ago, I had the opportunity to remove four of the old Advanced Energy
Systems GC-1000-SA inverters and replace with a single Fronius IG-5000. If I
remember correctly, the PV modules were SP-65s!
I spend a lot of time teaching PV theory, sales and installation courses i
Has anyone a point of contact at BP Solar to discuss warranty issues of
SX170Bs installed in January 2006?
Thanks
Peter T. Parrish, Ph.D.
President, SolarGnosis
1107 Fair Oaks Ave.
South Pasadena, CA 91107
Ph. (323) 839-6108, Fax. (323) 258-8827
___
L
You can order direct from Renogy in California (Chino or Chino Hills). -
Peter
Peter T. Parrish, Ph.D.
President, SolarGnosis
1107 Fair Oaks Ave.
South Pasadena, CA 91107
Ph. (323) 839-6108, Fax. (323) 258-8827
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Tum
Hi Tom et al,
I am sorry that I can't help you.
We have just installed a GS8048 (not an "A" model as I understand things)
system and are having some difficulty with Los Angeles Dept of Water and
Power getting an Interconnection Agreement. They have assigned an engineer
to review our application a
The most recent copy of the "Solar Photovoltaic Installation Guideline" that
I have is the April 22, 2008 draft. Has this been released in final form or
incorporated into some other publication?
- Peter
Peter T. Parrish, Ph.D.
President SolarGnosis
1107 Fair Oaks Ave.
South Pasadena, CA 91107
Ph
It depends on the appliance. Some pure resistance heating units will work
okay but with a lower thermal output. Other appliances will work if there
are internal jumpers that can be reset for 208V operation or terminal blocks
that can be rewired for 208V. This is especially true for appliances tha
Has anyone any direct experience with the SMA PV Offset Box? Which inverter
did you use it with and with which PV modules? Any help would be appreciated
as we may have problems in the field.
Has SunPower issued anything regarding their product line as to allowing
negative grounding. It would be gr
Dear William,
I too had a very difficult interaction with DC-Power Systems a couple of
years ago -- before they merged (whatever) with Solar Depot. Since they are
now one and the same company, and it looks like the DC-Power Systems folks
(and their approach to doing business) are asserting control
This dialog is pretty informative, and I think that it boils down to
distortion and probably harmonic distortion. There are in addition to
scopes, specialized "harmonic distortion analyzers". I think I should be
able to lay my hands on one.
I want to pull the trigger on this purchase. I think the
I have an off-grid demo consisting of 5 SX3170's, a Blue Sky CC, 6 kWh of 24
V batteries and a Xantrex ProSine 1000 inverter.
I would like to add a ~750 W - ~1000 W genny that can be interfaced with the
ProSine.
Any ideas?
Peter T. Parrish,
I have designed and built one and have used it for many years: 6 kWh (gross
battery storage), 24 Vdc and 120 Vac at 1 kW ea; 850 W STC PV modules. PV
rack on casters and BoS in 8 cu-ft box on casters as well. One off design.
It keeps on ticking while taking a licking.
Peter T. Parrish, Ph.D., Pre
nce on the tires and
suspension as well as the rating.
Bob Ellison
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter
Parrish
Sent: Sunday, October 02, 2011 12:08 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] GNB Battery Con
We are looking for a battery-powered fork lift: total vertical lift 22' and
load (typically on pallets) 350 to 700 lbs. We will of course need a solar
powered charging station, but that can be designed once we have a good fork
lift identified.
Has anyone actually purchased a battery-powered forkl
rid tie to.
I was always under the impression (perhaps false) that there were additional
software controls to prevent anti-islanding to another inverter.
Bill Brooks seems to know more about UL1741 test procedures.
R. Walters
r...@solarray.com
Solar Engineer
On Jul 19, 2011, at 10:04 AM, Peter Parr
I need to give a group of California educators the simplified explanation of
inverter anti-islanding. I know the full details are quite complicated and
have evolved a bit over the past few years, but would the following be an
acceptable short explanation?
*** Please contact me off-list with commen
I came late to this discussion, but one can take the course on-line for $50.
IMHO it is worth having one member of each install crew take the course.
- Peter
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NABCEP Cer
Fewer number of strings the better. Go with plan A. Why 13 (and not 12) of
the Rolls if I may ask?
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NABCEP Cert. 031806-26
peter.parr...@calsolareng.com
Ph 323-258-8883
To all of you that labor in Los Angeles: we have been experiencing some
recurring high grid voltages in the Northeast Los Angele area (e.g. 90065).
About a month ago a client called to inform us that his inverter was off
line. It turned out that there may have been a voltage spike intense enough
to
Has anyone had to help a client (Los Angeles County, California) filling out
a "Property Owner's Statement - New Construction". This form was sent to the
client/homeowner, apparently triggered by the issuance of a permit to
install a PV system.
I gave it a quick once over and there does not appear
The is a relatively new company in Southern California, Gold Coast Solar,
that is marketing colored PV panels a/k/a "Stylish Solar Panels".
Back in late-2010, they were in the process of getting CEC listing. They are
not listed today, at least not under "Gold Coast".
They made some technically i
I have a client who fully discharged a pair of SunXtender PVX3050T 6V
batteries. They were about one year old. They had no load voltages of 1.77
and 0.87 V respectively. I have ordered him a new pair but I wondered if
they could be resuscitated to some degree and be used for some odd purpose
around
We have had our "delivery date" repeatedly pushed out to 2-3 weeks from my
date of inquiry. Our latest ship date is "definitely the week of 4/11-4/15
2011". We'll see.
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NAB
The Code back then was a little vague back then and I am not sure it has
been improved.
First, there needs to be a DC disconnect just before or just after
penetrating the building shell. Most AHJ allowed us to place this disconnect
in the attic within reach of the access door. Once we needed to pl
That's pretty easy. Square D has a 3R rated 60A fusible disco.
P/N D222NRB with Class R fuse kit P/N RFK03H
The fuse kit "rejects" non Class R fuses
As for the Milbank tap kit, would this kit have to be used with Milbank
sockets only? I'm thinking of both mechanical issues and nit picking
in
There may be some confusion here. Bill Brooks is referring to work being
done and the original post, unless I am mistaken, referred to plan
checking. Aside from the fact that the work being proposed needs to be done
by a duly licensed contractor, the plans may be the product of just about
anyon
Back in '06 I got a nifty roll of stickers that I think were meant to be put
inverters. But we put so much (doubtless important) signage on our systems,
I stopped using them. Maybe they might be used on plans.
- Peter
Peter T. Parrish, Ph.D.,
Does anyone have information (manu and part number) for expansion joints for
1-1/2 EMT? I have also heard that many EJs are designed for rigid conduit
(RMC) and may not be directly applicable to EMT.
- Peter
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., L
I have a client that was going to get a refurbished IG-5100 under warranty,
but he is now thinking about the newer IG Plus 6.0.
Fronius is not interested in replacing the dead IG-5100 with an IG Plus 6.0
even though the client is willing to pay a reasonable amount of money for
the "upgrade".
Besi
We have a portable "demo-off grid" system (24 Vdc, 120 Vac, 1kW-ac) and
occasionally we end the day with a fairly deep discharge 11.6-11.7 V (80%
DoD).
I like to get a deeply discharged battery back up to 100% capacity as soon
as possible (as opposed to letting the 850 W PV / charge controller sy
Interesting abstract.
One thing that struck me was the lack of measured data on power production
(if that indeed is the object of this study). I guess one can infer the Pmp
from "the short circuit current (Isc ), the open circuit voltage (Uoc ) and
the cell temperature (T) of each cell". I also wo
Short answer: DC/PV side two factors of 1.25; AC side one factor.
Reasons: the common factor of 1.25 is due to the treatment of PV systems as
continuous sources of power, the second factor of 1.25 is for the "cloud
effect". It is entirely possible to get more than 1,000 W/m^2 on a PV module
if the
I recently went through the same exercise as you are about three months ago.
Our Site Surveyors had mangles the jack on the Model 100 body to the point
that there was less than a 50% chance that (1) the unit would charge up
adequately and (2) we could download the session to our computer.
The fix
As PV becomes more and more mainstream, more and more organizations
(including state licensing boards, unions and other certifying bodies) will
weigh in on the subject of certifying installers for PV installation. We
also have Professional Engineers that can provide expert opinions on the
subject o
Dear Greg and others,
The answer to your paradox is actually quite simple. It is also a great
example of how a paradox can stimulate further thought until a more refined
answer can be achieved.
First, lets set up the problem. You have a PV module and an external
circuit. In the case of an Isc
This is a pretty good example of how obscure the various "lighting"
variables are for even solar pros.
I won't go into the gory details (and they are details of some depth, trust
me). So let's take the following shortcut.
A decent CFL puts out 60 lumens per watt of power consumed. So, in theory,
Well,
I thought we were talking about getting into bed with roofers. If we are
talking about DIYers, here is my two cents worth.
Just so boB and Warren dont appear to be a couple of voices in the
wild(erness). I personally do not know of a single PV integrator who would
work with a DIYer. The r
I believe that Schneider will send PB board swap-out kits to installers and
compensate installers for the swap-out. We are putting together a list of
all the GT inverters that we have installed since 2002 and will ask for
enough to cover the list, and if we have extra kts left over, we will be
able
A typo. See below:
Here is the way I figure this kind of problem out.
(1) Old modules. Figure out the number of cells and the cell size. For
example 72 cells, 100 mm (4) square.
(2) New module. If you can, find a module with the same number of cells (not
modules!) and same cell size.
(3) Make
Here is the way I figure this kind of problem out.
(1) Old modules. Figure out the number of cells and the cell size. For
example 72 cells, 100 mm (4") square.
(2) New module. If you can, find a module with the same number of
modules and same cell size.
(3) Make sure were are talking
and strip away the
jacket at each lug, using No-Ox on that section of bare wire at the
lug. The wire can be tucked in to the module frames and with the PV
conductors.
Kelly Keilwitz, P.E.
Whidbey Sun & Wind
Renewable Energy Systems
ke...@whidbeysunwind.com
360-678-7131
On Jan 14,
One of my students who is currently responsible for standing for inspection
at their company encountered a inspector who made an interesting point about
incompatible metals (i.e. copper and anodized aluminum).
The PV system in question used outdoor rated lay-in lugs to bond the rails
to bare coppe
for this makes sense.
Its the reason they( inverter companies ) are doing it.
I"ve heard a better more complete reason of course from Bill Brooks, who
maybe can chime in.
sorry got away from me,
jay
peltz power
On Jan 6, 2011, at 2:34 PM, Peter Parrish wrote:
> I can't understand
I can't understand how any inverter WOULDN'T deliver its power with the
voltage and current 100% IN PHASE.
When the voltage and current are not 100% in-phase that represents reactive
power. Reactive power flows positive for a quarter of the AC cycle, then
negative for a quarter of a cycle, then p
I know each of us probably has their individual Xantrex GT warranty
replacement story but what I hope is to capture is the big picture.
>From what I understand, essentially 100% of the Xantrex GT inverters
manufactured from a specific Chinese factory ultimately have failed by now.
It had to do wi
If your rust (iron oxide) problem is a tough one, I have a great rust
remover. Its called Naval Jelly and its pretty powerful stuff (contains
phosphoric acid). Use rubber gloves, and in the case of a thin layer of
rust, you could dilute it with water. It will attack paint and probably
anodized
No one should put up with grid voltages "out of range". Immediately inform
your utility: tell them where, when and how often you measured (or your
inverter registered) the out of range voltages. It turns out that you are
doing them a favor and they often appreciate the information.
What we measure
former out of the equation.
Bill.
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter
Parrish
Sent: Friday, December 10, 2010 9:07 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] Driving Point Im
I wanted to share with the Wrenches a post-install measurement that we make
and file along with the other routine measurements (e.g. V(+) to V(-), V(+)
to Gnd, V(-) to Gnd, Pac, time or date, date, ambient temp, etc).
This is the AC voltage at the distribution panel with and without the
inverter o
I spent some time putting together information on the "2'-6" Lower Limit"
and the "6'-6" Upper Limit" for operable equipment; and then when I went to
send out the results of my efforts, the content in the email disappeared.
Since the information I thought would be helpful, I have re-assembled the
i
I believe anything operable needs to be within 26 lower and 66 upper.
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NABCEP Cert. 031806-26
peter.parr...@calsolareng.com
Ph 323-258-8883, Mobile 323-839-6108, Fax
I thought we thoroughly thrashed this one out. A no less an authority than
Bill Brooks assures us that we can orient two (or more) strings differently,
wire them in parallel and the MPPT algorithms in modern inverters will sort
things out, essentially extracting the maximum (or nearly maximum) powe
n going without, then that's better than nothing.
And, of course, one would have to pick a proper resistance (a few Ohms,
typically),
and a minimum power rating of the resistor.
boB
On 11/16/2010 10:34 AM, Peter Parrish wrote:
Bob,
So he is grid-tied. But his household loads are all 1
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter
Parrish
Sent: Monday, November 15, 2010 8:38 PM
To: glenn.b...@glbcc.com; 'RE-wrenches'
Subject: Re: [RE-wrenches] 120 volt grid tie inverter
Bob,
Do you mean they have a nominal 120 Vdc input? Or do you mean that they
Bob,
Do you mean they have a nominal 120 Vdc input? Or do you mean that they want
a 120 Vac (RMS) output? If the former, what output voltage do you want? If
the latter, what is their nominal dc input voltage (better yet the range of
DC input voltages over a range of typical temperatures and irradi
SMA will sell a SB4000US programmed to limit the AC output current to 16.0A.
I think they designate it as a SB4000US-CL, or something to that effect.
Interestingly enough SunPower, which rebrands many of the SB inverters
(including the SB4000US) and sells them as SP products, has chosen not to
sup
Are any installers who could help us with two projects in Cleveland and
Detroit? We have an opportunity to install PV and SDHW on a number of single
family dwellings in both cities. We are looking to do planning over the next
three months and the installations as soon as the weather permits (April?
Hello Benn,
I have some pretty strong opinions about this subject but some of them are
reflections on politics as opposed to sound engineering design and best
installation practices.
See my comments interspersed below:
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cyn
Hi Marco,
First off, the P-ptc/P-stc ratio is 90% if you have a high-quality module.
>From their things get progressively worse.
IMHO it is like peeling an onion. From the outside it can be reduced to one
simple statement. Then you can investigate some of the simplifying
assumptions and make more
Bill and others. I dont remember what type fuses are needed in conjunction
with the AC disconnect.
- Peter
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NABCEP Cert. 031806-26
peter.parr...@calsolareng.com
Ph
Are there UL testing procedures for Grid-tied Battery Backup Systems, such
as the Xantrex XW systems and the Outback GVFX systems? The reason for my
inquiry is that the Los Angeles Department of Water and Power intends to
require that "...applicants installing Battery Backups on their solar
systems
I have been looking into the possibility that a relatively new weather
station in the Los Angeles area -- a RAWS station to be precise -- is
consistently recording temperatures about 5 deg F higher than actual. I have
been basing my opinion using a standard Hg/glass thermometer and a IR gun.
Both o
Please call Elie at (323) 258-8883. He's my office admin and he can tell you
where we purchase this puppy, both with and without the enclosure! I believe
it's SunWize but I'm not sure.
- Peter
Peter T. Parrish, Ph.D., President
California Solar
I am an infrequent (3/year) designer/installer of grid-tied battery back up
systems. I really like the SunXtender battery line. We can get them for a
good price (contact me off line) here in Los Angeles.
With that, I cannot vouch for cycling them 1,200 times to 80% DoD. That
seems a bit severe. I
hope it was not too technical.
- Original Message - From: "Peter Parrish"
To: "'RE-wrenches'"
Sent: Tuesday, September 14, 2010 10:37 AM
Subject: [RE-wrenches] On Demand Heaters for SDHW
We have a SDHW client that wants to replace his old water heater
I think we have made some progress here on the story line. So lets see if
we can understand what happened "due to UL testing changes".
One other random question. I believe that SunPower permits drilling their
frame for the purpose of accommodating the lay-in lug, for example the
outside of the s
We have a SDHW client that wants to replace his old water heater with a new
tankless water heater. We do a SDHW system about once a year, and only for
clients that are getting a PV system from us to begin with. So this is not a
big business line for us and we are behind the curve in terms of
unders
l.
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter
Parrish
Sent: Monday, September 13, 2010 7:18 AM
To: 'RE-wrenches'
Cc: 'Christopher Flueckiger'; 'Tim Zgonena'
Subject: Re
7;t have to constantly be revisiting the issue.
>
> Bill.
>
>
> -Original Message-
> From: re-wrenches-boun...@lists.re-wrenches.org
> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter
> Parrish
> Sent: Monday, September 13, 2010 7:18 AM
ge-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter
Parrish
Sent: Sunday, September 12, 2010 1:49 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] The Demise of WEEB
We were informed a while ago that SunPower no longer "sup
Are you sure that's a ILSCO GBL-4DBT lug? I am pretty sure the set screw is
not SS, which it should be to be the genuine part.
- Peter
Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 9006
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