Re: [RE-wrenches] Derik of Hi Power Hydro: Missing in Action?

2010-08-09 Thread David Katz
Wait a few day. Asis.com, the local internet service is broken and has been for 4 days. You can call Derik at 707-923-3507 David katz -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mark Dickson Sent

Re: [RE-wrenches] AC to AC syncrhonizer for hydro plant.

2010-09-02 Thread David Katz
input voltage of the inverter. This is simpler and less expensive that trying to synchronize the turbine to the grid. Call Derik Veenhuis at Hydroinduction Power - 707 925-3507. He has done this many times. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339

Re: [RE-wrenches] 120 volt grid tie inverter

2010-11-15 Thread David Katz
Has anyone tried string sizing 60 cell modules to an SMA 700. It is not possible. David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> On 11/15/201

Re: [RE-wrenches] Internet-based monitoring

2010-11-26 Thread David Katz
systems start at $495 retail, including the equipment and 5 years of monitoring http://solarlog-web.net David David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www

Re: [RE-wrenches] Internet-based monitoring

2010-11-26 Thread David Katz
systems start at $495 retail, including the equipment and 5 years of monitoring http://solarlog-web.net David David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com<mailto:da...@aeesolar.com> www.aeesolar.com<http://www

Re: [RE-wrenches] Low temperature over-voltage bypass (not Apollo Solar)

2011-01-10 Thread David Katz
Title: David Katz Lee, We never had enough interest to warrant getting a UL listing on the product. Is it for grid-tie or off-grid? David David Katz Founder & CTO AEE S

Re: [RE-wrenches] Help me locate "Light It Technologies" aka "Montana Light" aka Don Smith

2011-01-21 Thread David Katz
Title: David Katz Backwoods Solar still stocks Light-it products David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202

Re: [RE-wrenches] Photowatt warranty: who can I call?

2011-01-22 Thread David Katz
Title: David Katz Mick, Photowatt's operation in the US was owned by ATS.  They are now producing modules in Ontario Canada.  ATS Automation 730 Fountain Street North Building #2 Cambridge, ON N3H 4R7 Canada Tel: (519) 650

Re: [RE-wrenches] Sunny boy 1800

2011-04-07 Thread David Katz
og run of wire, it would get over 128 when the inverters were putting out power. This made it go on and off every 5 minutes. I changed the parameters through the Sunny WebBox and set the AC cut-off to 135 and the problem went away. David David Katz Founder & CTO AEE Solar T(707) 825-12

Re: [RE-wrenches] Heavy Duty Modules?

2011-04-13 Thread David Katz
frame to add extra strength. David Katz David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> ___ List s

Re: [RE-wrenches] Trickle charge a generator cranking battery?

2011-04-15 Thread David Katz
I have been using a 10 watt module without a charge control to charge my generator cranking battery for more than 5 years and i have never had to add water. David David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com <ma

Re: [RE-wrenches] balasted racks

2011-04-16 Thread David Katz
My favorite is AET. David David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> On 4/16/2011 8:38 PM, Nick Vida wrote hey wrenches. i am looking a

Re: [RE-wrenches] Interfacing an Air 403 wind generator

2011-05-06 Thread David Katz
/catalog/swea-watt-grid-inverter-starter-wind-p-39.html Let me know if you try it. David David Katz Founder & CTO AEE Solar T(707) 825-1200 C(831) 325-9582 F(707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> On 5

Re: [RE-wrenches] Xantrex 3 XW system bypass

2011-05-17 Thread David Katz
Brian, I have that setup in the old AEE trailer. We used it for charging a plug in hybrid for a race. When ever the car was not plugged in, power went backwards through the SW4024 and charged batteries. The waveform worked fine with and SMA 1800, which has a 120 VAC output. David David

Re: [RE-wrenches] Fwd: Car charging station without grid

2011-07-15 Thread David Katz
SunnyIsland. When the charger was unplugged, the array charged the batteries through the SunnyBoy and SunnyIsland. This allowed the batteries to absorb the array output between charges. David Katz ___ List sponsored by Home Power magazine List Address: RE

Re: [RE-wrenches] history of grid-tie inverters

2011-09-14 Thread David Katz
then they dropped to 0%. The SMA's were the first 600 volt inverters to be used in the US. Before that, everything was 48 volt. Regards, David Katz AEE Solar From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jim MacDonald Sent:

Re: [RE-wrenches] High Temp Batteries

2011-09-22 Thread David Katz
. They may be a good choice if the system is under 100 amp hours. David Katz AEE Solar From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Chris Daum Sent: Thursday, September 22, 2011 8:35 AM To: 'RE-wrenches' Subject: [RE-wren

Re: [RE-wrenches] What's the right action?

2011-10-06 Thread David Katz
Hi Allan You could credit him the interest on the $600 he loaned you. David From: Allan Sindelar [mailto:al...@positiveenergysolar.com] Sent: Thursday, October 06, 2011 03:32 AM To: RE-wrenches Subject: [RE-wrenches] What's the right action? OK, here's one way off the beaten path. I live in an

Re: [RE-wrenches] intermittent battery problem

2011-10-08 Thread David Katz
How old are the batteries? Did you do the hydrometer reading, or are you relying on info from the customer. It is easy toi misread a hydrometer. When was the last time the batteries were at 30+ volts? David Katz From: Ron Young [mailto:solarea...@solareagle.com] Sent: Saturday, October 08, 2011

Re: [RE-wrenches] intermittent battery problem

2011-10-08 Thread David Katz
If it takes 2 hours of charging to get to 25.8, the batteries are very discharged. It should be that high as soon as you start charging with a decent charger. David Katz From: Ron Young [mailto:solarea...@solareagle.com] Sent: Saturday, October 08, 2011 11:01 AM To: RE-wrenches Subject: [RE

Re: [RE-wrenches] intermittent battery problem

2011-10-08 Thread David Katz
ter 2 hours of charging if it had even a 50% charge. David Katz From: Ron Young [mailto:solarea...@solareagle.com] Sent: Saturday, October 08, 2011 11:31 AM To: RE-wrenches Subject: Re: [RE-wrenches] intermittent battery problem There is no amp hour meter in the system. The dump load on the Wh

Re: [RE-wrenches] intermittent battery problem

2011-10-08 Thread David Katz
them they need to run the generator for 40 hours to catch up. Customers never like to hear that. A trimetric will help them keep up. David Katz From: Ron Young [mailto:solarea...@solareagle.com] Sent: Saturday, October 08, 2011 06:42 PM To: RE-wrenches Subject: Re: [RE-wrenches] intermittent

Re: [RE-wrenches] Solar gathering?

2011-10-10 Thread David Katz
Next year it will be in Orlando. David Katz - Original Message - From: Jesse Dahl [mailto:dahlso...@gmail.com] Sent: Monday, October 10, 2011 07:06 AM To: RE-wrenches Subject: Re: [RE-wrenches] Solar gathering? Thanks for the advice! Dallas here I come...next year! Jesse Sent from my

Re: [RE-wrenches] intermittent battery problem

2011-10-22 Thread David Katz
y was probably because of the 800 watt PV array and light loads. It would be interesting to do a real equalization and a capacity test to see what is left of the batteries. David David Katz CTO & Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com From: re

[RE-wrenches] Shell solar module question

2011-10-22 Thread David Katz
Mike Michael D. Matz PHOTON USA Corp. 514 Bryant Street San Francisco, California 94107, USA David Katz CTO & Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com ___ List sponsored by Home Power magazine Lis

[RE-wrenches] Sharp 62 Watt Shingle Installation Info needed

2011-10-24 Thread David Katz
Wrenches, I just picked up 32 Sharp 62 watt roofing shingles that I want to install on my barn since it is time for a new roof. Has anyone had any experience putting these modules on a roof in conjunction with cement tiles, which sharp's data sheet says they integrate with. David Katz

Re: [RE-wrenches] Battery / no-battery

2011-10-27 Thread David Katz
The Heart Transverter can be grid-tied with or without a battery, but it is not through UL yet. David Katz - Original Message - From: b...@midnitesolar.com [mailto:b...@midnitesolar.com] Sent: Thursday, October 27, 2011 12:27 PM To: RE-wrenches Subject: Re: [RE-wrenches] Battery / no

Re: [RE-wrenches] mc4 inline fuses

2011-11-10 Thread David Katz
Conrad, The inline fuse for PV cables is made by Shoals Technologies. http://shoals.com/?page_id=100026 David Katz CTO & Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-

Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New Inverter, AC Coupled

2011-11-22 Thread David Katz
AC breaks, the grid tie inverter goes off for 5 minutes. The loads operate on the Sw, pulling the battery down, which closes the relay and the cycle repeats. David Katz - Original Message - From: Nathan Jones [mailto:solardud...@yahoo.com] Sent: Tuesday, November 22, 2011 07:10 AM To: re

Re: [RE-wrenches] Diversion load for AC coupled system

2011-11-29 Thread David Katz
diversion load and let the diversion controller do the fine tuning. Let me know if that does not make sense. David Katz - Original Message - From: Larry Crutcher, Starlight Solar Power Systems [mailto:la...@starlightsolar.com] Sent: Tuesday, November 29, 2011 05:35 PM To: RE-wrenches

Re: [RE-wrenches] Diversion load for AC coupled system

2011-11-30 Thread David Katz
why I suggested the the relay controlled load be 50 to 75% of the pwm diversion load, so that whenever it turns on the pwm controller will be working, too. David David Katz CTO & Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com From: re-wrenches-

Re: [RE-wrenches] rail less standing seam attachments

2018-03-31 Thread David Katz
gt; Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.ht

Re: [RE-wrenches] generator search

2018-04-09 Thread David Katz
s.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenche

Re: [RE-wrenches] Mounting on rock

2018-04-14 Thread David Katz
Aaron, I have seen large pole mounts in Portugal in an above ground ring of concrete 3 feet high and 6 feet in diameter. I would get an engineers opinion on the size but that would be easier than digging a hole in rock. David Katz On Thu, Apr 12, 2018 at 6:27 AM Aaron Mandelkorn wrote: > Hi

Re: [RE-wrenches] Non breakable RV modules

2018-08-20 Thread David Katz
g/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > -- David Katz Sent from Gmail Mobile ___ List sponsored by Redwood Alliance L

Re: [RE-wrenches] Low Voc for effective string?

2018-09-12 Thread David Katz
you need 56 volts from two 60 cell modules it will be a much lower current than peak current. The modules will be running closer to open circuit voltage. If you battery reaches full charge at 48 volts, it should charge fine, but you will have other bigger problems. David Katz On Tue, Sep 11, 2018

Re: [RE-wrenches] Reliable 48 to 24 V DC to DC reducer

2018-09-15 Thread David Katz
are isolated. And they only cost a few dollars. https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F152134115704 David Katz On Sat, Sep 15, 2018 at 7:58 AM Drake wrote: > Since Solar Converters seems to have evaporated, I'm not sure where to > look for a

Re: [RE-wrenches] Lithium ion for 12 V system

2018-10-27 Thread David Katz
K-2 in Henderson NV has 12v Lion batteries with BMS David Katz On Sat, Oct 27, 2018 at 8:19 AM wrote: > > An off grid system owner contacted me, looking for a L-ion battery for a > 12 V system. Does such a thing exist? > > Th

Re: [RE-wrenches] Ni-Fe update?

2018-11-21 Thread David Katz
cells exploded when the water level got below the plates. I would suggest L-ion batteries instead. David Katz On Wed, Nov 21, 2018 at 10:37 AM Ray wrote: > Charge efficiency is really low, Charging parameters can be hard to get > right, Voltage is not stable under heavy loads, and th

Re: [RE-wrenches] Hober Pumps Reviews?

2019-01-05 Thread David Katz
Grundfos and Lorentz. David Katz On Sat, Jan 5, 2019 at 9:06 AM William Dorsett wrote: > Jay, thanks for your response. Do you have or anyone close, actual > experience with Hober? At 230 ft, plus as Dan suggested, we have to add > the head to the storage tank. At that depth ShurFlo

[RE-wrenches] Heliene PV Modules

2019-02-07 Thread David Katz
Does anyone have experience with Heliene modules? Are they a good USA made module? Thanks David Katz Backwoods Solar -- David Katz Sent from Gmail Mobile ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change

Re: [RE-wrenches] Anyone recognize this pole mount system?

2019-03-14 Thread David Katz
make an engineer happy. That one definitely looks home made. David Katz Tamarack Solar Products On Thu, Mar 14, 2019 at 1:12 PM Timothy Econopouly < tim.econopo...@suncommon.com> wrote: > They look like vintage Tamarack or MT Solar top of pole mounts > > On Thu, Mar 14, 2019 at 3:3

Re: [RE-wrenches] Retrofit BMS

2019-05-04 Thread David Katz
have modbus output. David Katz On Fri, May 3, 2019 at 2:47 PM Andrew Truitt wrote: > > Wrenches - I have an opportunity to take possession of some lightly used 2 > kWh Lishen LFP battery packs for next to nothing. What's the catch? No > BMS. Anyone have any experience retrofi

Re: [RE-wrenches] 12v solar direct greenhouse fan

2019-05-17 Thread David Katz
Snap Fan makes great ones. Snap-fan.com David Katz On Fri, May 17, 2019 at 5:40 AM David Palumbo wrote: > I have an old off grid customer looking for a greenhouse fan, about 20”, > to run direct off an old 48w 12v module. > > > > Backwoods is listing DC Super Fans that say bat

Re: [RE-wrenches] Large off-grid inverter/storage

2019-09-05 Thread David Katz
The sentence “25KW per hour“ does not make sense. Do they mean 25KWh per hour? That would be 600 KWh per day! That would require over 200KW of PV. David Katz On Thu, Sep 5, 2019 at 3:33 PM Dave Angelini Offgrid Solar < offgridso...@sti.net> wrote: > I often find that numbers like 25KW

Re: [RE-wrenches] replacement Solarworld Sunmodule SW plus 250 poly clear frame

2019-09-13 Thread David Katz
p://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.

Re: [RE-wrenches] Convex modules

2019-11-18 Thread David Katz
ce, to me it > sounds like poor quality control or is internally considered acceptable. > Jerry > > On Mon, Nov 18, 2019 at 7:04 AM David Katz > wrote: > >> Here is a response from Jinko: >> >> >> >> On Mon, Nov 18, 2019 at 7:39 AM Jerry Shafer >&

Re: [RE-wrenches] Top of Pole Mount recommendations

2019-12-11 Thread David Katz
Tamarack Solar Products has Top-of-Pole mounts with stamped engineering drawings for that wind speed, but only up to 6 modules per mount David Katz On Wed, Dec 11, 2019 at 8:35 AM Lou Russo wrote: > Aloha Wrenches, > > I have a project that I originally called out Preformed Line P

[RE-wrenches] Lithium Ion Batteries

2020-03-20 Thread David Katz
of which battery functions best with the Outback system. Thanks, David Katz ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cg

Re: [RE-wrenches] 250KW-500KW Off-grid Inverters?

2020-04-13 Thread David Katz
If you are working in Africa, Asia, or Europe the AC output is 380-400 3-phase or 230 1-phase without the 120V center tap. If you are working on a country that used to be a puppet government of the USA it will be 120, 240 480 etc. David Katz On Mon, Apr 13, 2020 at 1:37 PM Kirk Herander wrote

Re: [RE-wrenches] Solis inverters

2020-05-06 Thread David Katz
://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or upd

Re: [RE-wrenches] cast-in-place ballasted ground mounts

2020-05-18 Thread David Katz
Hi Kirk, Check out DiamondPiers. They say that they are equal to a 24" diameter, 5 foot deep concrete pier and require no concrete. You just need a jackhammer type tool. I have not tried them. They could be good for multipole ground mounts https://www.diamondpiers.com/how-it-works David

Re: [RE-wrenches] Charging a Bolt with an SW

2020-06-07 Thread David Katz
> Check out or update participant bios: > www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://

[RE-wrenches] Cheap solar

2009-04-27 Thread David Katz
Wrenches, Here is a really scary link. the guy is selling a book for $50 that shows you how you can build your own PV module for $125. http://www.power4home.com/index.php?hop=roeib Cheers David Katz ___ List sponsored by Home Power magazine List

Re: [RE-wrenches] Solar power Magic

2009-07-27 Thread David Katz
might have to buy these to appease the system owner who is not getting what they expect from their system. They Tigo converter is very interesting and has an MSRP of $56. At this price it will make some sense. Cheers, David David Katz President AEE Solar 1155 Redway Drive P.O. Box 339

Re: [RE-wrenches] High snow load on PV Modules

2009-07-28 Thread David Katz
Tump, Mitsubishi makes the modules for Shuco with the cross bar. The sell the same module directly. REC modules are also rated at 5400pa. they do it with thicker glass. Those Norwegians know snow load. David David Katz President AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA

Re: [RE-wrenches] Watt-hour meter

2009-07-28 Thread David Katz
You can use a standard 120 vac kwh meter in an RV base and add an extension cord cut in half for input and output. David Katz President AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 da...@aeesolar.com <mailto:da...@aeesolar.

Re: [RE-wrenches] High snow load on PV Modules

2009-07-28 Thread David Katz
I think Open Energy is in bankruptcy now. David Katz President AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 da...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com> DISCLAIMER: This c

Re: [RE-wrenches] Subterranean solar panels

2009-09-14 Thread David Katz
This is a stupid idea. It is probably a hoax. David David Katz President AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 da...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com> DISC

Re: [RE-wrenches] Shell Solar RV20 PV charge controller

2009-10-13 Thread David Katz
considering there will be some voltage drop in the wiring. There is no feature for equalization to worry about with sealed batteries. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk

Re: [RE-wrenches] "Name that solar module" guessing game!

2009-10-23 Thread David Katz
Mick, If these modules have failed, it is a good bet that they are Kyocera J-51s David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesol

Re: [RE-wrenches] Great service at the wholesale level?

2009-10-25 Thread David Katz
I am certainly interested in which wholesale distributors offer good service, if any. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.

Re: [RE-wrenches] SW4024 compatibility question

2009-10-30 Thread David Katz
Allan Ask Greg Thomas at Outback. He wrote the software. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aee

Re: [RE-wrenches] Evergreen - now what?

2009-11-05 Thread David Katz
silicon made in the US David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> DISCLAIMER: This c

Re: [RE-wrenches] Evergreen - now what?

2009-11-05 Thread David Katz
though. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> DISCLAIMER: This communication, along

Re: [RE-wrenches] strings of older solar panels

2009-11-18 Thread David Katz
Lee I would be inclined to use groups of 4 modules wired for 24 volts connected to an Enphase inverter. This will give you less problem with mismatch loss. 256 watts is high but they are probably a bit lower in output that that. David David Katz Chief Technical Officer AEE Solar 1155

[RE-wrenches] Online system sizing software

2009-11-29 Thread David Katz
Has anyone tried the free online sizing software at http://www.solardesigntool.com/overview.html They have a pay version too. David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com

Re: [RE-wrenches] Evergreen EC 110

2009-12-03 Thread David Katz
Evergreen is making an ES-C series 80 watt and 120 watt modules in China. They do not have the same dimensions as the old EC series. AEE will have them after the new year. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825

Re: [RE-wrenches] dual stacked inverters on 208V service

2009-12-31 Thread David Katz
ss a single phase. you may be able to stack them at 240 and only connect one of the inputs to AC in. good luck. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aees

Re: [RE-wrenches] Evergreen

2010-01-03 Thread David Katz
u are definitely better off with more modules on a fixed array in an off grid situation because you always need more power in the winter when the tracker is least effective. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825

Re: [RE-wrenches] Obscure/obsolete QO breaker....

2010-01-09 Thread David Katz
You can get that from AEE - their part number 053-07819. it is on page 153 of the catalog. It is made of a 6 space, 3 phase indoor load center, a QO160 and a QO260 and the QD2DTI interlock which is available from AEE - 053-02094 in case you want to buy the part separately. David David Katz

Re: [RE-wrenches] Teacher wants a cutaway PV module

2010-02-24 Thread David Katz
I am pretty sure that tempered glass with shatter as soon as you cut into the edge. That is the nature of tempered glass. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com

Re: [RE-wrenches] Solar World 175's

2010-02-24 Thread David Katz
Backwoods Solar has them. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> DISC

Re: [RE-wrenches] Need NT185U1 Sharp module

2010-02-26 Thread David Katz
I am pretty sure that AEE has several hundred Mitsubishi UD185MF5 David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aee

Re: [RE-wrenches] Et tu Honeywell?

2010-04-08 Thread David Katz
for the wind generator. The brochure claims 2500 KW per year in calss 4 winds. I list them as vapor ware for now. At least until someone calls me back. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825

Re: [RE-wrenches] sources of DC equipment

2010-04-11 Thread David Katz
Hi Daryl Ed Eaton (SEI Instructor) builds and sell a line of LED lights for 12, 24 and 48 VDC. - haree...@yahoo.com is his email address. David Katz ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org

Re: [RE-wrenches] Amphenol Helios as MC4 substitute

2010-04-11 Thread David Katz
The MC3 tool works great on the Amphenol pins. The MC4 tool definitely will not work David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesol

Re: [RE-wrenches] Grid-tie hydro

2010-04-22 Thread David Katz
Derik at HI Power hydro has done several of these with grid tie DC voltage with diversion. You can reach him at de...@asis.com http://www.hipowerhydro.com/ cheers, David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax

Re: [RE-wrenches] Lorentz Sub Pump

2010-04-22 Thread David Katz
Allan, Are you running 100+ volts DC through a Square D breaker? They are not rated for anything above 48VDC. Midnite Solar makes a manual transfer switch that can be fitted with 150 VDC breakers. That may be a better choice. David David Katz Chief Technical Officer AEE Solar 1155

Re: [RE-wrenches] Lorentz Sub Pump

2010-04-22 Thread David Katz
Hi Jeff O, What do you use for power for the relay coil?. The pump can run on voltage up to 300 VDC. I suppose you could tap the output of one module or add a separate small module. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel

Re: [RE-wrenches] E-meter/Link-10 prescaler

2010-04-27 Thread David Katz
Cheers, David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesolar.com <http://www.aeesolar.com/> DISCLAIMER: This communication, al

Re: [RE-wrenches] low voltage modules in high voltage applications

2010-04-27 Thread David Katz
I still have some old Xantrex STXR inverters that work on 48 volts and i can give him a deal on a Beacon 48 volt grid-tie inverter too. The modules are probably safe at 48 volts. Give him my number. i have a bridge to sell him, too. David David Katz Chief Technical Officer AEE Solar

Re: [RE-wrenches] Enphase performance

2010-05-10 Thread David Katz
Bill, Sunpower likes to sell overpriced, private labeled inverters along with their modules. The make installers who want to use their modules, but "Sunpower" inverters. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread David Katz
Marco, When you are drawing 120 VAC, the neutral is a current carrying conductor. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.com> www.aeesol

Re: [RE-wrenches] AM noise on batteryless inverters

2010-06-19 Thread David Katz
I have an SMA 2500U in my bedroom outside wall and Tigo Maximizers on the modules and have noise on AM radio in the bedroom in the daytime. David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk

Re: [RE-wrenches] AM noise on batteryless inverters

2010-06-19 Thread David Katz
Whoops - I meant to say *_no_* noise in the thread below. AM radio works perfectly. David AEE Solar David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com <mailto:da...@aeesolar.

Re: [RE-wrenches] Interstate UL-16 HC problem

2010-07-01 Thread David Katz
Title: David Katz Wrenches The only time I ever see L16s last this long is when they are over-sized so much that they can lose half of their capacity and still satisfy the customer.  Batteries are considered worn out when they only hold 80% of their original capacity.  If the customer really

Re: [RE-wrenches] 2500 W inverter for $300

2013-08-09 Thread David Katz
ffer much motor starting surge. David Katz Sent from my iPhone On Aug 9, 2013, at 8:08 AM, "RE Ellison" mailto:reelli...@gmail.com>> wrote: Do they have a charger or just a CCC inverter? Harbor freight sells units like this. Unless they are a continuing customer or a friend, I

Re: [RE-wrenches] XW 600 VDC Controller?

2013-09-22 Thread David Katz
Greg I have been using one for over a year with 4.5kw of modules. It works great. David Katz Sent from my iPhone On Sep 22, 2013, at 5:03 PM, "Greg Egan" mailto:g...@remotepowerinc.com>> wrote: Friends, Have a customer that needs to put the array 420' from the batteries

Re: [RE-wrenches] Energy usage for an electric car

2013-09-27 Thread David Katz
My nissan leaf uses about 25 kW-h to go 70 miles. David Katz Sent from my iPhone On Sep 27, 2013, at 1:20 PM, "William Miller" mailto:will...@millersolar.com>> wrote: Friends: Have any of you researched the energy usage for an electric car? The car in question is a Tesla S

Re: [RE-wrenches] Fwd: Re: DC arc welder?

2013-11-23 Thread David Katz
You can buy a 24 volt DC MIG welder from ReadyWelder. David Katz Sent from my iPhone On Nov 23, 2013, at 10:37 AM, "Allan Sindelar" mailto:al...@positiveenergysolar.com>> wrote: Forwarding from Windy. Original Message Sure you can solar weld! Afterall,

Re: [RE-wrenches] Shedding ice

2012-01-16 Thread David Katz
Mark, I believe the Midnite Classic has this feature built in. Check with them. David Katz From: Mark Dickson [mailto:m...@oasismontana.com] Sent: Monday, January 16, 2012 10:00 AM To: 'RE-wrenches' Subject: [RE-wrenches] Shedding ice I recall a conversation a while back about the p

Re: [RE-wrenches] low head/low cost solar pump

2012-02-24 Thread David Katz
slightly less then spec says at 24 volt, but since it is positive displacement it will pump fine at the low voltage. David Katz CTO & Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 dk...@aeesolar.com www.aeesolar.com DISCLAIMER: This communication, along with any documents, files or attachm

Re: [RE-wrenches] DC to DC power supplies

2012-02-27 Thread David Katz
Hi Jay, Powerstream has complete units with leads so you don't need to get an enclosure or solder anything. http://www.powerstream.com/dcdc.htm They have a 24 vdc to 9 vdc for $31. Kirt Jensen has taken good care of me there. David David Katz CTO & Founder AEE Solar Inc P: 707 825-12

Re: [RE-wrenches] PV harvest in grid-tied systems

2012-04-18 Thread David Katz
William I have a grid tie system with a Outback Radian and Xantrex 600 volt charge controller with 4kw of modules and it sells back flawlessly. I have revenue-grade monitoring on the system and I am very happy with the output. David Katz Sent from my iPhone On Apr 16, 2012, at 6:51 AM

Re: [RE-wrenches] PV harvest in grid-tied systems

2012-04-18 Thread David Katz
you choose for revenue-grade monitoring? > > Comments? > > Bill Loesch > Solar 1 - Saint Louis Solar > 314 631 1094 > > > On 18-Apr-12 4:01 AM, David Katz wrote: >> William >> I have a grid tie system with a Outback Radian and Xantrex 600 volt charge >&

Re: [RE-wrenches] Xantrex 600v charge controller

2012-05-20 Thread David Katz
Lars I have been using the Xantrex 600 volt charge controller for 6 months. It works great. It is controlling 4kW coming in at 350 vdc charging a 48 volt battery. You need to have the remote to set it up and monitor its output. David Katz Sent from my HTC smartphone on the Now Network from

Re: [RE-wrenches] Troubleshooting Off-grid PV

2012-05-27 Thread David Katz
I would check each string. I have seen many failed 120 watt Kyocera modules. They had a delamination problem. David Katz Sent from my HTC smartphone on the Now Network from Sprint! - Reply message - From: "Eric Stikes" To: "RE-wrenches" Subject: [RE-wrenches]

Re: [RE-wrenches] Trace SW4024, 1998 vintage - Still OK for grid-tie?

2012-06-30 Thread David Katz
The SW requires and inductor to operate in current mode for grid tie. Maybe someone remembers the part number. It may be hard to find. David Katz Sent from my HTC smartphone on the Now Network from Sprint! - Reply message - From: "Bob Clark" To: "re-wrenches@lists.

Re: [RE-wrenches] Outdoor woodstove/furnace and solar

2012-07-04 Thread David Katz
it worked great. It was a great way to get rid of pallets. Unfortunately it was most needed whenever there was not much sun, so it definitely increased generator run time. David Katz Sent from my HTC smartphone on the Now Network from Sprint! - Reply message - From: "Ron @ earth

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