Re: [RE-wrenches] Micro-Inverter Challenge Winners Declared. Interesting details to follow.

One clear advantage of micro inverters is that string size is not an issue. Especially, dealing with ULA racking, where modules go up in groups of 4, often good string sizing is not available. Sometimes string sizing can be found at the bottom of the hot weather voltage window for string inve

Re: [RE-wrenches] The Demise of WEEB

There is an issue with Sharp modules using Weeb clips also. They are not specified for grounding in their manuals and UL has not tested Sharp modules with the clips. For now, they are not acceptable. I don't know how many brands of modules are effected by this ruling. Drake At 04:48

Re: [RE-wrenches] PV and Roof Flammability

One thing to consider is that PV is installed on a lot of buildings here, and many more in Europe. There is ample data available to determine if PV is a fire hazard. We should not create codes based on speculation. Early on the "what if" factor seemed to play heavily into the equation. At t

Re: [RE-wrenches] Tranformless inverter

I also received this advertisement. Previously I had investigated the smaller SMA transformerless inverters, and was told that this type would not be allowed in the US until the 2011 code. Has the ban been lifted? At 12:52 AM 9/29/2010, you wrote: Wrenches: I received an advertisement fr

Re: [RE-wrenches] Enphase v. string inverter

watt limit to its output. The inverters are rated for up to 235 watt modules. This 224 watt module array spends a fair amount of time at full inverter capacity during cool sunny days. Maybe these inverters should not be used with over 210 watt modules. Drake At 12:50 AM 10/11/2010, you

Re: [RE-wrenches] Enphase v. string inverter

Hello Joel, The issue is that over half the array was in shade. I don't think there would have been enough string voltage to start a string inverter. Cheers, Drake At 11:33 AM 10/11/2010, you wrote: Hello Drake, I have observed hundreds of PV systems in the early morning and can

Re: [RE-wrenches] What is a solar installer...?

At least in the U.S., in jurisdictions I have worked in, an installer can connect "plug and play" connectors. If a wire is to be cut, pulled or connected to a terminal, an electrician is needed. At 04:11 PM 10/14/2010, you wrote: Wrenches, a colleague of mine is looking for feedback to t

[RE-wrenches] Ground Mount Screening

ce around the array? Thanks, Drake ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-w

Re: [RE-wrenches] Ground Mount Screening

he always energized DC wiring, not the 240 VAC which will de-energize when the wiring is disconnected. Lattice should be adequate, if it makes the AHJ happy. Drake At 05:57 PM 10/21/2010, you wrote: Drake, I recommend using 4'x8' panels of lattice work that is either wood or PVC so

[RE-wrenches] 2011 NEC Code book with Handbook on CD ROM

, Drake ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wren

Re: [RE-wrenches] 2011 NEC Code book with Handbook on CD ROM

it easier to look stuff up (ie indexed better)? I've never tried anything but the hard copies. R. Walters r...@solarray.com Solar Engineer On Oct 25, 2010, at 12:06 PM, Matt Lafferty wrote: > Hi Drake, > > 2011 NEC is available now in Looseleaf (3-Ring binder, $95), Softbound &g

Re: [RE-wrenches] Code reference needed

"(3) Height of Working Space. The work space shall be clear and extend from the grade, floor, or platform to the height required by 110.26(E). Within the height requirements of this section, other equipment that is associated with the electrical installation and is located above or below the

Re: [RE-wrenches] Protection against birds

I wonder if the sonic rodent repellant devices would work. I can't hear them at all myself, nor could others with better hearing. The device seemed effective. At 06:28 PM 10/25/2010, you wrote: I've worked on a couple of commercial projects where birds were trouble. On one, we would clean th

Re: [RE-wrenches] Charge Control in AC coupled system

at a time, to taper charge. Have any Wrenches AC coupled this many Enphase micro inverters to Outbacks? Have you had any problems? Thank you, Drake At 05:07 PM 10/28/2010, you wrote: We have done several of these systems with various inverter combinations. We used a voltage activated

Re: [RE-wrenches] Charge Control in AC coupled system

This is for an on grid system that would AC couple when the grid goes down. Would that still void the warranty? At 11:46 AM 10/29/2010, you wrote: Drake - fyi: you will void the warranty on the Enphase inverters. Andrew Truitt Truitt Renewable Energy Consulting 202 486-7507 <h

Re: [RE-wrenches] Enphase warranties

look good, but last I heard were still tied up at UL. Drake At 03:54 PM 10/29/2010, you wrote: When I asked Enphase about AC coupling with their product a year ago the answer was a flat NO, so at least it appears they're moving in the right direction... Andrew Truitt NABCEP Ce

Re: [RE-wrenches] Enphase warranties

The PVP 2000 is only 92% efficient. At 04:59 PM 10/29/2010, you wrote: PV Powered. . . Best regards, Mark Dickson, NABCEP Certified Solar PV Installer ™ -- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Drake Sent

Re: [RE-wrenches] warranty liabilities

At 02:58 PM 11/1/2010, you wrote: I am finding that many modules are failing at 4+ years old. What brands of module are you having that problem with? ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Op

Re: [RE-wrenches] enphase AC carrier length

I was told 300 feet by an Enphase Rep. We have a system that is at least that far from the Envoy. At 11:14 AM 11/4/2010, you wrote: HI All, Is there a max length to the AC carrier signal for Enphase? I thought I did hear about a length, and in checking the website could find no mention of

[RE-wrenches] SB Power during countdown

this is a replacement for the original inverter that had very similar issues. What would make an inverter produce power during the countdown? Is this part of a larger pattern? Is there a problem with the system, or did I get a second, problematic inverter? Than

Re: [RE-wrenches] SB Power during countdown

ucing power. No Spark on the DC wires. Note: The first inverter did NOT blow the GFP fuse. I worked intermittently. Has anyone had problems with Sanyo modules faulting? Thanks, Drake ___ List sponsored by Home Power magazine List Address: RE-wre

[RE-wrenches] Megger for array testing

open circuit readings and shows no indication of a fault whatever, would this test accomplish anything more than the standard voltage to ground tests I've already done? * Is there any danger to diodes or other PV components? Thanks in advan

Re: [RE-wrenches] Megger for array testing

des or other PV components? Thanks in advance. Drake ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://li

Re: [RE-wrenches] Megger for array testing

100 kOhms Best regards, Drake Drake Chamberlin Athens Electric OH License 44810 CO license 3773 NABCEP Certified PV At 09:11 PM 11/17/2010, you wrote: Content-Type: multipart/alternative; boundary="=_NextPart_000_0062_01CB8682.CEC07160" Content-Language: en-us Meggerers,

[RE-wrenches] Is delay 1741?

issue? Thanks, Drake Drake Chamberlin Athens Electric OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches

Re: [RE-wrenches] World Business Guide Scam

Thank you Tom At 02:00 PM 11/30/2010, you wrote: Beware!! Here we go again the Euro business Guide Scam has morphed into the World Business Guide Scam. SEE BELOW Promising a FREE update in the e-mail, if you fill their form out and sign it they will charge you $1393 per year for three years

Re: [RE-wrenches] Code reference needed

At 03:20 PM 12/4/2010, you wrote: I, too, can't find the 2'-6" lower limit specified anywhere in the NEC 2008. I've seen very clean, industrial panels with switches less than a foot from grade. ___ List sponsored by Home Power magazine List Addres

Re: [RE-wrenches] Battery based hydrogen incidents

I had a very well vented automotive battery explode. The cause was apparently an internal short. The explosion broke the case and splattered me with acid. I was lucky and not injured. I think the internal short rapidly vaporized the acid and the explosion was essentially due to steam press

Re: [RE-wrenches] Component Choices for MY RV - Apollo Solar?

Have you found the 50% capacity true for Outbacks? I'm considering AC coupling 2000 watts into a VFX 3524. With the roof angle, on cold days, this inverter could get STC solar production easily. Drake At 07:53 PM 12/25/2010, you wrote: I have answered an eariler email, but in regar

Re: [RE-wrenches] Industrial battery chargers

nches, Drake I am looking for recommendations for an industrial grade battery charger for our shop. Most of what I am finding is in India, China or Germany but I would like something a little closer to home. I am looking for these features: * automatic 3 stage charging selectable for 6

Re: [RE-wrenches] Enphase--what's the deal?

According to the Enlighten monitoring system, the 190s do max out at 199 W. I size wiring for that output. At 12:11 AM 12/31/2010, you wrote: Content-Type: multipart/alternative; boundary="=_NextPart_000_0174_01CBA855.56B0E070" Content-Language: en-us At present Enphase sells 1

Re: [RE-wrenches] Inverter oversizing

. Drake At 09:14 PM 1/19/2011, you wrote: David, Thanks for sharing that paper. The labeling the graphs for the 10-second and 1-minute data in Freiburg appears to be reversed - the one minute averaging seems to have more data in all of the bins above 1000 W/sq m. Basically, these graphs show

[RE-wrenches] NEC Plus

Has anyone subscribed to the NEC Plus on line service? The NFPA won't be selling the NEC on the CD ROM this cycle. They do have a pdf version, but that doesn't seem as useful. How does the NEC Plus work for a searchable and printable NEC Handbook? Drake Chamberlin Athens E

Re: [RE-wrenches] NEC Plus

chable and printable. The search feature of each new edition was of lower quality than the previous. With the NEC Plus, we will need to pay up each year instead of every three. Hopefully it has features that will make it worth it. Thanks, Drake At 02:27 PM 2/15/2011, you wrote: We sub

[RE-wrenches] Seam clamps with or w/o rails

under the array. Would you agree with this concept, or would you recommend connecting the modules straight to the seam clamps? Are there any down sides to using the rails with the S-5s? Thanks, Drake Drake Chamberlin Athens Electric OH License 44810 CO license 3773 NABCEP Certified PV

Re: [RE-wrenches] Seam clamps with or w/o rails

August, Yes, Weebs. Drake At 10:02 AM 2/18/2011, you wrote: Drake - We've done lots of systems both ways - using rails such as Unirac solarmount or ProSolar is definately more forgiving compared to mounting directly on the seams. The adjustability of the Unirac L-foot is particu

Re: [RE-wrenches] Array tilt angle doesn't matter?

ve: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin Athens Electric OH License 44810 CO license 3773 NABCEP Certified PV ___

Re: [RE-wrenches] Listed/Approved Battery Box Vent Fan

n can compromise an otherwise well insulated house. I'm looking at adding a vent fan and a dryer vent, with a flap, to seal against air back flow. The lack of UL listing of the battery vent has often been an issue. Drake At 08:24 PM 2/25/2011, you wrote: Ben, I would prefer to rely

Re: [RE-wrenches] Are PV Systems are considered separately derived systems?

e-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin Athens Electric OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wren

[RE-wrenches] Electromagnetic Pulse (EMP)

arch been done in this area? Does anyone know answers to any of these questions? Thanks, Drake Drake Chamberlin Athens Electric OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Address: RE-wren

Re: [RE-wrenches] Electromagnetic Pulse (EMP)

potential generated inside the busses of a module by a pulsed magnetic field. It would be good to get some definitive information about these issues. Drake At 02:34 AM 3/20/2011, you wrote: Hi Allan; <http://www.telegraph.co.uk/science/space/7819201/Nasa-warns-solar-flares-from-huge-space-sto

[RE-wrenches] Sharp ND 224UC1

I'm looking go two Sharp ND 224UC1 modules. Does anyone know where these might still be available. Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Addres

[RE-wrenches] Old Nicads

If these were lead acid batteries, they would clearly be scrap. Is there any chance that these could be any good? If so, what steps should be taken to get them out of mothballs? Thanks, Drake Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certifi

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

___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rul

[RE-wrenches] SMA High AC Voltage vs MPP

tage got to 250 VAC, would that be a problem? * I see that range pretty regularly around here. Any help with these questions would be appreciated. Thank you, Drake Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV _

[RE-wrenches] Paint for Rubber Flashings

Hello Wrenches, We had a discussion on the list previously concerning degradation of rubber boots on flashings due to UV exposure. Apparently painted boots will hold up much better than non painted. Can anyone recommend an appropriate paint to use? Thanks, Drake Drake Chamberlin ATHENS

Re: [RE-wrenches] National grid hertz adjustment

nches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Hom

Re: [RE-wrenches] Fronius IG vs IG Plus inverters

.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org

Re: [RE-wrenches] Torque Wrenches

wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored

[RE-wrenches] Fwd: Re: Aluminum Module Frame To Galvanized Uni-Strut

Marv, It is common practice to run bare copper ground wire over rails and under modules, which will touch the aluminum at various points. How much of a problem is this going to create in the long run? Drake At 07:45 PM 7/12/2011, you wrote: Content-Class: urn:content-classes:message

Re: [RE-wrenches] Fwd: Re: Aluminum Module Frame To GalvanizedUni-Strut

grounding electrode to the earth itself, not at the array. Ray Walters On 7/13/2011 2:46 PM, Marv Dargatz wrote: Drake, This is a HUGE problem. If you want a real earful, talk to John Wiles, Bill Brooks, or Greg Ball about this. While you might think that the anodizing on the aluminum woul

Re: [RE-wrenches] SMA design tools

o our own math. Drake At 11:12 AM 7/20/2011, you wrote: Content-Type: multipart/alternative; boundary="=_NextPart_000_00B7_01CC46CD.FA9795A0" Content-Language: en-us This is an event that was foretold to us during a training session with SMA early last year. I am surpr

[RE-wrenches] Power One Vs Kaco

s are: * How have these units performed? Do they perform as advertised? Are they reliable? * Has any one AC coupled either or both of these? * Do either make objectionable noise? Thanks in advance, Drake Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certifi

[RE-wrenches] Transformerless Inverters

Can transformerless inverters be AC coupled? Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings:

Re: [RE-wrenches] pole mounts

s.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >

Re: [RE-wrenches] Grounding system for a shack on a frozen lake?

g/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Optio

Re: [RE-wrenches] Grounding system for a shack on a frozen lake?

tp://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.

Re: [RE-wrenches] 310.15(A)(2) Exception

f the wire to that of the hottest temperature zone, which is zero distance above the roof where the conductors penetrate. Is this a correct interpretation? Thanks, Drake At 01:51 PM 8/17/2011, you wrote: As I read the rule, that 100' in the trench allows you to go 10' above gra

[RE-wrenches] SS wire retainer clips

plier that sells these? What would I ask for? I had believed that these clips were designed specifically to clip cables to modules. Thanks in advance, Drake Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV __

[RE-wrenches] Cuttler Hammer AFCIs

h the Outback systems and the Cutler Hammer AFCI breakers? If so, what equipment would work better? Thanks, Drake Drake Chamberlin ATHENS ELECTRIC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List Addres

Re: [RE-wrenches] Sharp modules

What do you think of the quality of the new Sharp modules? The 240 F2 has a good PTC rating, but a power tolerance range of 15% (+10% -5%). With the frame and construction issues, I wonder if the quality of Sharp modules is slipping. Has Sharp cut quality to keep competitive? Drake 09

Re: [RE-wrenches] Sharp modules

and 235, with some 240s on order. What series of modules have you noticed issues with? Thanks, Drake At 06:31 PM 9/12/2011, you wrote: DrakeAs far as i know the power tolerance rating has gotten a bit better than they used to be.I believe the floating glass inside the frame is

Re: [RE-wrenches] Sharp modules

slightly lower PTC rating than Sharp. How do these two factors work together when figuring the effectiveness of a module? Thanks, Drake At 09:16 AM 9/13/2011, you wrote: Kirpal, The Sharp modules that we've used haven't been much out of square, and the glass in the frame did not

Re: [RE-wrenches] Designing PV systems for lightning prone areas

__ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenc

Re: [RE-wrenches] Invert first?

es.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO license 3773 NABCEP Certified

[RE-wrenches] Midnight Classic

Hello Wrenches, What are your experiences with the Midnight Solar Classic 200 and 250 volt charge controllers? Thanks, Drake Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power

Re: [RE-wrenches] Push-in Wire Connectors

ches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Ho

Re: [RE-wrenches] Push-in Wire Connectors

the connections with standard wire nuts. Electricians use NEMA 3R enclosures a lot, and don't use sealed connectors inside. As William points out, NEMA 3R may be superior to gasket sealed boxes in that 3R allows for any condensation to evaporate readily. Drake Chamberlin ATHENS ELE

Re: [RE-wrenches] Feeder without a dedicated breaker

.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power magazine List A

Re: [RE-wrenches] Cummins DC generator

ches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.o

Re: [RE-wrenches] Battery idle losses; Sunny Island overhead

gi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO licens

Re: [RE-wrenches] cable spacing in trenches

re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin ATHENS ELECTRIC LLC O

Re: [RE-wrenches] High Voltage MPPT units

ches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.

Re: [RE-wrenches] High Voltage MPPT units; Adding battery backup

lable. At 02:04 PM 11/9/2011, you wrote: Nice Find, Drake! Thanks. What is the minimum system for an AC coupled inverter? Again, the idea is for low cost battery backup of an existing grid tie. The AC coupled schematics I have looked at require a major rewire and many components. I would

Re: [RE-wrenches] High Voltage MPPT units; Adding battery backup

The GENTRAN sounds very interesting. The Internet has some for sale, but so far no detail. Will the 12 circuit panel shed one circuit at a time? In a nutshell, how does this work? Thanks, Drake At 02:32 AM 11/10/2011, you wrote: Hi Wrenchies, Yes and if you use a GENTRAN or

Re: [RE-wrenches] SMA Sunny Design temperature/voltage calculations

. If this is indeed the case, would it be possible to edit the data and put the old tool back on line? Thanks, Drake Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO license 3773 NABCEP Certified PV ___ List sponsored by Home Power

Re: [RE-wrenches] Battery Backup for Older Enphase Systems

Hi Nick, Please send me your information. Currently I am finishing up an Enphase M-250, AC coupled system that is designed to taper charge batteries by dropping out groups of inverters based on battery voltage. Thanks, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License

Re: [RE-wrenches] blue planet batteries

Will these work on Sunny Island systems? Thanks, Drake At 04:04 PM 1/4/2018, you wrote: JayOur office has done research on quit a gew batteries, the Blue Ion Blue Planets battery has been very good in our testing. Feel free to talk off listJerry Sent from my Verizon, Samsung Galaxy

Re: [RE-wrenches] Off grid DC Loads: DC Converter

A Concorde AGM PVX 3050T recently failed in a bank of 8. Larry mentioned a couple of brands experiencing problems. These batteries are 4 years old and have been kept in float in an off grid system, never stressed. Hopefully Concorde batteries are not going the way of Trojan L-16s. Has anyone

Re: [RE-wrenches] has anyone ever had this happen?

The regulations for doing business in Mexico are intense. There are customs with organized corruption that make it necessary for someone to totally know the ropes. At 01:48 PM 1/23/2018, you wrote: HI All, I’ve had a large company want to do a project and they want me to invoice it as follo

Re: [RE-wrenches] Electric Water kWh/ person

This discussion has been a great help. The house is built and the plumbing is in, but could be modified. Wood stoves are not a likely solution. I think we need a different water heating strategy. Thank you all! Drake At 09:21 AM 3/15/2018, you wrote: Content-Type: multipart/alternative

Re: [RE-wrenches] Electric Water kWh/ person

Daniel, That sounds like an intriguing technology, much along the lines of an air to air heat exchanger. Thanks for the recommendation. These systems could keep a lot of CO2 out of the atmosphere if widely used. Drake At 10:09 AM 3/19/2018, you wrote: Content-Type: multipart/alternative

[RE-wrenches] Enphase IQ series inverters

Hello Wrenches, Does anyone have a track record on the Enphase IQ inverter? Thanks, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV 740-448-7328 <http://athens-electric.com/>http://athens-electr

[RE-wrenches] Solar Pond Aerators

, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV 740-448-7328 <http://athens-electric.com/>http://athens-electric.com/ ___ List sponsored by Redwood Alliance List Address: RE-wrenches@li

[RE-wrenches] Inverter repair needed

the best for a replacement at a reasonable cost? Thanks, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV 740-448-7328 <http://athens-electric.com/>http://athens-electric.com/ ___ List sponsored by R

Re: [RE-wrenches] old sanyos failing Iso test

Aren't Sanyo modules warranted for 20 years? That is less, but still substantial. Does anyone know if Sanyo modules are affected by Potential Induced Degradation (PID) when connected to an ungrounded inverter? At 01:43 PM 5/30/2018, you wrote: To all that were asking about warranty on the ol

Re: [RE-wrenches] Xfmr's job?

That is interesting about Magnum: Tech support told me that the 4024PAE was two separate 2000 W inverters. We had problems with a microwave shutting the system down. Do you find you have good reliability with Magnum products? Drake At 03:53 PM 5/30/2018, you wrote: HI Dave and everyone

Re: [RE-wrenches] Aqueon disposal

How many of these are going bad? Is this a major problem, or has mismanagement ruined a few? Drake At 06:54 PM 7/26/2018, you wrote: I was lucky that my local county Hazo-house took a look at the MSDS and said drop them off. The person there saw my big MSDS printout and said uh oh, but

Re: [RE-wrenches] Conext xw+ 6848 inverter 1.5 minute voltage increase

This problem might be due to a neutral connection problem in the electrical system. Loose neutral connections can put 120 V loads in series. It puts loads on both line 1 an line 2 in series for 240 V. The high resistance load (the one with the low draw) gets high voltage. At 06:23 PM 8/11/2

[RE-wrenches] Forced air Furnace

ed by a Magnum 4448 PAE. Thank you, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV 740-448-7328 <http://athens-electric.com/>http://athens-electric.com/ ___ List sponsored by Redwood All

Re: [RE-wrenches] Forced air Furnace

was an exceptionally low draw. This is from memory back in about 2010, I have since had a heart attack with a heavy penalty so my memory may be flawed.  On Thu, Aug 23, 2018 at 6:44 PM Dana <<mailto:d...@solarwork.com>d...@solarwork.com> wrote: Drake, All the conventional

Re: [RE-wrenches] Forced air Furnace

hy. I will likely need to order it on line (or take a trip to a neighboring city), so reading the nameplates might not be so easy. Does anyone know how to get accurate data on furnace blower motors? Thanks, Drake At 01:59 PM 8/24/2018, you wrote: Content-Type: multipart/alternative;

Re: [RE-wrenches] Forced air Furnace

and charge controllers left on, so batteries will stay charged. They are also a good emergency source of heat. Windows can be cracked for ventilation if necessary. Best, Drake At 05:56 PM 8/24/2018, you wrote: Content-Type: multipart/alternative; boundary

Re: [RE-wrenches] Forced air Furnace

That sounds like the ticket! At 11:32 AM 8/28/2018, you wrote: Drake, look at home depot for the Empire brand of small wall furnaces. They use zero power (old style thermo like a water heater) and can be legal as primary source of heat for building code. They vent out a wall and are very

[RE-wrenches] Forced air Furnace

recall this ancient history. Cheers, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV 740-448-7328 <http://athens-electric.com/>http://athens-electric.com/ At 07:43 PM 8/23/2018, you wrote: Content-Type: multipart/alter

Re: [RE-wrenches] Off-grid refrigerator

We recently installed a Frigidaire refrigerator in our off gird house, and it uses about 1 KWh/ Day. It is nothing very special, but works fine. At 09:20 PM 9/8/2018, you wrote: Hello Off-grid Wrenches, After 10+ years my Wife is finally sick of our Sunfrost RF-12. We'd like to upgrade to s

Re: [RE-wrenches] Trojan L16RE-2V set-points

I agree with the comments that followed on this thread, and would also like to add that Trojan L-16 batteries have a high rate of premature failure. Possibly the 2 V cells are better, but the 6 V cells seem very prone to dying early. Trojan batteries were robust in past decades, but seem exce

Re: [RE-wrenches] Low voltage DC v. higher voltage DC

Is this what you are referring to? http://en.byd.com/energy/download/high-voltage/B-Box%20High%20Voltage%20Specification.p At 10:10 AM 9/13/2018, you wrote: And yes, BYD BBox HV 5.12/7.68/10.24 devices will be supported when available in US (will be this year I understand) __

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

fgrid hydronic heating system. Thanks, Drake Drake Chamberlin Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV 740-448-7328 <http://athens-electric.com/>http://athens-electric.com/ ___ List sponsored by Redwood All

Re: [RE-wrenches] Low voltage DC v. higher voltage DC

At 10:58 AM 9/15/2018, you wrote: HI Drake, Can you upload that http again? The link doesn’t work. thx jay > On Sep 15, 2018, at 7:39 AM, Drake wrote: > > Is this what you are referring to? http://en.byd.com/energy/download/high-voltage/B-Box%20High%20Voltage%20Specific

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