[RE-wrenches] high insolation value and inverter undersizing

I have had a concern for a long time that as PV modules have gone up in output that there is inevitably going to be more and more clipping taking place as they’re paired with comparatively lower output inverters. In effect, matching, say. a 260-watt module with a micro inverter with a max output o

[RE-wrenches] high insolation value and inverter undersizing

For that particular site, no. As far as I know a database is not being maintained. That is, what you see at any given moment is what you get. But I will check. Once we get into Spring and Summer with higher sun angles, I will be able to see what kind of clipping would have taken place since I h

[RE-wrenches] Hawaii Frequency Settings

Take it from someone in the trenches out here in the Aloha Stateyes, we have to jump through these hoops. The utilities here-HECO, MECO, HELCO and KIUC-vary as far as what they require regarding verification and documentation. It's been my experience that HECO and MECO are more lax whereas HE

[RE-wrenches] finding array ground faults

Hoo boyI've got a tough one here. Trying to troubleshoot an array ground fault with a system that has 14 strings mounted on a metal roof with the whole roof and metal framed building being common to ground. Can anyone recommend any diagnostic tools out there to troubleshoot and locate grou

[RE-wrenches] PowerOne Micro Inverters-

I've got the only operational P1 micro installation in the state here in Hilo. It's a solid product. The monitoring system works pretty well although it's still something of a work in progress. Allied Building on Sand Island there on O'ahu will be stocking them most likely sometime in Mar

[RE-wrenches] CIS mods

Aloha, Solar Frontier in Japan, the maker of copper-indium-selenium (CIS) mods, claims that their product produces more kWhs per kW installed than crystalline silicon. http://www.solar-frontier.com/eng/cis/index.html If you go to the Softbank Field Results on the right tabs area you can do

Re: [RE-wrenches] CIS mods

Yes, I saw that. Sounds like smoke and mirrors to me. marco On Mon, Feb 18, 2013 at 1:38 PM, Carl Emerson wrote: > *Marco.* > > * * > > *Did you notice the claim in the text as follows…* > > * * > > *The "Light Soaking" Effect* > Following an initial period of exposure to sunlight, the CIS li

Re: [RE-wrenches] CIS mods

Kirpal Khalsa NABCEP Certified Solar PV Installer Renewable Energy Systems www.oregonsolarworks.com On Mon, Feb 18, 2013 at 4:13 PM, Marco Mangelsdorf wrote: Yes, I saw that. Sounds like smoke and mirrors to me. marco On Mon, Feb 18, 2013 at 1:38 PM, Carl Emerson wrote: Marco. Did you

Re: [RE-wrenches] CIS mods

I couldn't get that link to work, Doug. Thanks. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Doug Wells Sent: Monday, February 18, 2013 4:19 PM To: RE-wrenches Subject: Re: [RE-wrenches] CIS mods Ok so its a reading nigh

[RE-wrenches] P1 micro performance

Yes, I know that that screen shot was only a moment in time. Here it's only March and clipping is already taking place. Imagine what kind of clipping is going to take place at higher irradiance levels later in the year. Yes, the monitoring program cannot as of now quantify what kind of harvestin

[RE-wrenches] P1 micro performance

>From Dan at Exeltech: Trying to explain in depth the "how and why" slightly larger PV is of benefit to a customer is like trying to explain photovoltaic equipment to the general public. I still challenge those who believe that “some clipping is good” to make their case. And as far as the g

[RE-wrenches] P1 micro performance

Nick, Is Enphase going to be introducing to market any time in the near-term a new micro with a higher output? It seems very likely that the trend toward higher output mods will continue. The M215 will surely be left behind to a greater degree as this trend continues if there are higher and r

[RE-wrenches] Enphase M240

As some of you might have heard, Enphase is bringing to market their newest micro: the M240 which is already listed on the California Solar Initiative website. http://www.gosolarcalifornia.ca.gov/equipment/inverters.php Are any of you beta testing this bugger? Thanks, marco ___

Re: [RE-wrenches] Solar Bridge AC Modules

Challenges with the monitoring system. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Carl Adams Sent: Tuesday, May 28, 2013 9:11 AM To: RE-wrenches Subject: [RE-wrenches] Solar Bridge AC Modules Hello Wrenches, SolarBridg

[RE-wrenches] Defective modules-American crap?

I find that at least out here in Hawaii, a substantial portion of the PV buying market really doesn't care what goes on their roof or who puts it up; they just want it now (before the grid gets too saturated and unable to accommodate much more PV) and they want it cheap. Being in this business for

[RE-wrenches] Power One Microinverters

I have eight P1 micro installs in operation. So far so good though the range of the wireless communication system can be iffy especially when dealing with metal roofs, of which we have a lot in these here parts of Hawaii. The fix is to relocate the CDD (their data logger) antenna closer to the ar

[RE-wrenches] Defective modules

What we know for sure: cSi mods have stood up through the test of time since Bell Labs cranked out the first modern-day cells in 1954. Over ½ century worth of data and real-world experience with the technology. What we don’t know for sure: how long cadmium telluride and other non-cSi will hold

[RE-wrenches] Power-One micros

I thought I'd pass on some real world experience with the Power-One 300-watt micro here in Hawaii. I've paired it with a 327-watt module and am seeing AC output as high as 316 watts. See the screen shot below. And I've seen output as high as 259 watts AC out of their 250-watt micro. I'

Re: [RE-wrenches] Power-One micros

ce On 6/5/2013 9:48 PM, Marco Mangelsdorf wrote: I thought I'd pass on some real world experience with the Power-One 300-watt micro here in Hawaii. I've paired it with a 327-watt module and am seeing AC output as high as 316 watts. See the screen shot below. And I've seen ou

[RE-wrenches] Solar Edge v. micro inverters

I've been educating myself on the Solar Edge product v. using micro inverters. If you click on the link below, you can read the pitch that they make for using their product over micros. Any opinions out there on how convincing their strategy is? As well as any experience in the field with t

[RE-wrenches] double insulated wire

I'm kinda confused. With more transformerless inverters on the market (e.g., SMA and Power-One), it's not clear to me if double insulated wiring needs to be used all the way from each series string to their respective inverter. We've been installing the P1 3-6 kW TL inverters and there's no ap

[RE-wrenches] "PV wire"

Is double insulated (e.g., Falcon-brand wire) considered "PV wire"? That is, the kind of conductor needed for ungrounded (DC) PV systems? Any other non-double insulated wire type considered "PV wire"? And we seem to have a consensus that once the PV wire (for an ungrounded circuit) reaches a

[RE-wrenches] double insulated/PV wire

Sorry for my density..is "PV wire" necessarily double insulated? Thanks, marco From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szumlanski Sent: Tuesday, July 02, 2013 6:52 AM To: RE-wrenches Subject: Re: [RE-wrenches] do

[RE-wrenches] crystalline VS uni-solar and beyond

Joel, I've been either a participant or observer of the PV field/industry as long as most greybeards in the field. And ever since my entry in the RE biz in the 1970s, the promise from the touters of thin films has been: 1) their product was going to revolutionize the industry, 2) their product

[RE-wrenches] Fronius IG Plus

Does anyone know if Fronius is actually shipping their higher output IG Plus line? Do any distributors actually have some on their shelves? Thanks, marco Marco Mangelsdorf, Ph.D., President Electrical Contractor License C-26351 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281

[RE-wrenches] 300A panel

I know that it's an oddball size, but I'm looking for a 300A indoor, surface-mounted 120/240V distribution panel. Anyone know of an available model and manufacturer out there? Thanks, marco Marco Mangelsdorf, Ph.D., President Electrical Contractor License C-26351 69 Railroad Avenue

Re: [RE-wrenches] SS Tek Crews

Peter, Would a #12 2" self-driller with a carbon steel shank and stainless steel hex head with attached washer do? I use the T-5 Scots screws that I get from Dynamic Fasteners. I use them to attach ProSolar al. mounting rails directly through roof metal and into a 14g or 16g z-bar purlin. (I use

[RE-wrenches] fed tax credit

The renewed and expanded ITC..does that still maintain the 20-year max limit to be able to claim that tax credit? Thanks, marco cid:image001.jpg@01C6D004.C865A8F0 Marco Mangelsdorf, Ph.D., President Electrical Contractor License C-26351 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720

[RE-wrenches] Mounting system for array on a metal roof

In Hawaii, we have a lot of steel-framed buildings with z-bar steel purlins supporting the metal roof. My attachment means of choice is using T-5 screws (#12 x 24 threads per inch). These buggers are self-drillers with a carbon steel shank and drill point and stainless steel hex head cap with rub

[RE-wrenches] SunPower Corp

I'd appreciate getting in contact with all SunPower Corp. dealers on the List. Please email me off-list. Thanks, marco cid:image001.jpg@01C6D004.C865A8F0 Marco Mangelsdorf, Ph.D., President Electrical Contractor License C-26351 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720

[RE-wrenches] Beam me up, Sunny!

Does anyone have any used, working SMA Sunny Beams that they'd be willing to sell or know of any anywhere? Thanks, marco Marco Mangelsdorf, President 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281, 934-7462 facsimile <http://www.provisiontechnologies.com&g

[RE-wrenches] Fronius IG Plus

Any of you have experience with the new Fronius IG Plus inverters in the 8 kW to 12 kW range? Good, bad, beautiful, ugly? Thanks, marco Marco Mangelsdorf, President 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281, 934-7462 facsimile www.provision-sola

[RE-wrenches] Trace SW 4048

Aloha all, I’ve got a pair of Trace, yes Trace, 4048s in a NEM system circa 2001. While I can’t find anything demonstrably wrong after hours of troubleshooting, these buggers just don’t seem to be producing PV power when they should. I’m looking for a greybeard out there who’s well steeped in th

[RE-wrenches] Aquion

Hi all, Does anyone know whether Aquion is still around and producing product with that unique saltwater electrolyte after being purchased for cheap cheap by Chinese investors three years ago? Thanks, marco Rebellion logo --- This email has been checked for viruses by Avast antiv

[RE-wrenches] Positive grounded arrays

Argh...this is an ongoing, as in years' long, pain point with my long time SunPower friends. They've been looking into a device that would go between the old style non-Maxeon cell module strings and TL inverter that would effectively dissipate the polarization charge every night. And we've been wa

[RE-wrenches] Tesla new gt inverter

Hey Jay, Pricing info has yet to be released. If you are a Tesla Energy dealer, you can ask your rep for a copy of the preliminary spec sheet. marco On Saturday, January 23, 2021, Jay wrote: > Any of the Tesla dealers have any info, costs, features about the new gt > inverter? > > Thx > Jay >

Re: [RE-wrenches] home energy monitors

eGauge. On Sunday, February 7, 2021, jay wrote: > Hi All, > > I’m wondering what you recommend for whole house energy monitors with > solar option. > > There seem to be two basic types. > > Ones that use actual sensors on a number of the larger load circuits such > as Emporia Vue. Which can do

[RE-wrenches] LG Energy Solution Battery Recall

Whoa...amazing that almost 1/2 year after the recall that I'm now just hearing about this. How has LGC been as far as responsive and easy to work with on this recall? marco On Monday, May 10, 2021, Dave Angelini Offgrid Solar wrote: > Wrenches, > > I testted the RESU 10 48V here for Schneider

Re: [RE-wrenches] VFX3648

A number listed on eBay. -Original Message- From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of drake.chamber...@redwoodalliance.org Sent: Thursday, May 27, 2021 12:23 PM To: RE-wrenches Subject: [RE-wrenches] VFX3648 Hello Wrenches, Does anyone know where

Re: [RE-wrenches] Need some help

Those dinosaur Trace PV series inverters REQUIRE that isolation transformer between it and the AC tie-in. As in, it cannot be removed. So a big question is whether the two inverters are in good working order, right? I’ve got inverters of that vintage still operating in the field. One of the common

Re: [RE-wrenches] Need some help

? > > > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net > text 209 813 0060* > > On Sun, 6 Jun 2021 06:38:40 -1000, Marco Mang

[RE-wrenches] commercial BESS possibilities

Aloha all, I need to get better educated and see what's currently out there as far as battery storage in the 120/208 and 277/480 variety in the 100 kWh to one MWh range. Any suggestions and recommendations would be appreciated. Mahalo, marco ___ List s

[RE-wrenches] Tesla Powerwalls

Aloha all, For those of you, like me, who are Tesla Certified Installers, I’m curious as to 1) how well you feel you’re being adequately supplied with Powerwalls and 2) whether any of you have installed their new “back up switch”? Thanks, marco ___ List

Re: [RE-wrenches] Tesla Powerwalls

edictable, but still frustrating. > > Best, > Blake > > On Tue, Jul 20, 2021 at 1:47 PM Marco Mangelsdorf > wrote: > >> Aloha all, >> >> For those of you, like me, who are Tesla Certified Installers, I’m >> curious as to 1) how well you feel you’re b

Re: [RE-wrenches] Tesla Powerwalls

ff it's dealer network and essentially tell > the world that they are only selling Powerwalls direct with purchase of PV > from Tesla? I thought Powerwall was essentially dead to smaller independent > dealers. > > Jason > > > On Tue, Jul 20, 2021, 8:13 PM Marco Mangelsdorf

[RE-wrenches] custom DC disconnect sought

Aloha Wrenches and aloha happy Friday. I'm on the hunt for a U.L./ETL-affiliated shop that does custom disconnects. In this case a 12-circuit switching both poles in a NEMA3 or 4 non-metallic enclosure. Any suggestions (other than SolarBOS whom I've already left a message for) where to go f

[RE-wrenches] Tesla Powerwall off-grid

Aloha, To my fellow Tesla Certified Installers.have you had any experience designing and installing PV plus Powerwall(s) with a back-up generator in a 100 percent off-grid application? Powerwalls are grid forming absent a grid and allow for the PV to provide power to loads and charge the Po

Re: [RE-wrenches] Sun power 327 modules

Hey Jay, I’d suggest the SPR 345, if you can find three of ‘em, as a reasonable substitute. marco On Friday, September 17, 2021, Jay wrote: > Hi all > > I have a customer wanting to add 3 x 327 sunpower modules to his existing > array of 327 sunpower modules. > > 2 questions. > > Does anyone k

[RE-wrenches] Looking for multiple 100 kW inverters

Aloha Wrenches, I'm looking for as many as six 100 kW @ 480VAC inverters to replace as many Xantrex GT100s. Any suggestions would be appreciated. Also (now please don't laugh), does anyone know of any electro wizard or wizardess who's repairing GT boards? Mahalo, marco __

Re: [RE-wrenches] Looking for multiple 100 kW inverters

> On Oct 13, 2021, at 3:31 PM, Marco Mangelsdorf > wrote: > > > > Aloha Wrenches, > > > > I'm looking for as many as six 100 kW @ 480VAC inverters to replace as > many Xantrex GT100s. > > > > Any suggestions would be appreciated. Also (now please don

Re: [RE-wrenches] Looking for multiple 100 kW inverters

600VDC. On Wednesday, October 13, 2021, Jay wrote: > Hi Marco > > What is your panel max voltage > 600 or 1000? > > Jay > Peltz power > > > > > On Oct 13, 2021, at 4:31 PM, Marco Mangelsdorf > wrote: > > > > Aloha Wrenches, > > > &

[RE-wrenches] Looking for a solar tech in Bend, Oregon

Aloha all, I’m looking for a Wrench in Bend, OR. Please contact me offline if you know anyone. Mahalo, marco ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org

Re: [RE-wrenches] Imax disturbance Error

Hey Mac, It’s been my experience over the years that the Imax failure is fatal. marco On Sunday, January 9, 2022, Mac Lewis wrote: > Hello Wrenches, > > I've got a customer that has an issue with their ~10 yr old SB8000US > connected to a quad stack of Sunny Island system that's off-grid. > >

[RE-wrenches] the edge of solar and storage and SolarEdge storage

Aloha from Hilo, Have any of you taken the dive with SolarEdge and their storage products? I remember seeing their impressive display with their new storage at the last pre-pandemic solar confab in Salt Lake City in September 2019 and haven't seen much since, Mahalo, marco __

Re: [RE-wrenches] ] Tesla Anywhere

Aloha all, I’m going to pipe up here regarding Tesla. I’ve been in the solar field since 1978, am a supervising electrician as well as the RME with the electrical contracting license. My company has been a Tesla certified installer since 2018 here in Hawaii and I’ve had Powerwalls on my

[RE-wrenches] SolarEdge

Aloha, I’m in search of SolarEdge Optimizers. If any of you have any leads on a source, please contact me off list. Mahalo, marco ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@l

[RE-wrenches] LG Chem batteries

Aloha all, With LG exiting the solar PV space I'm wondering if their LG Chem affiliate is getting out of the residential battery storage space (their RESU line) as well. Anyone know anything about this? Mahalo, marco ___ List sponsored by Redwood Alliance

[RE-wrenches] Lithium battery fires

As I far as I know in the grid-tie residential storage market, Tesla Powerwalls have dominated, especially in the two largest markets of California and Hawaii. (Full disclosure: I'm a Tesla Certified Installer.) To my knowledge, I've never seen an example of one torching. In fact, Tesla, to their

[RE-wrenches] Lithium battery placement

Just out of curiosity, does Blue Planet allow for the placement of their Blue Ion battery in residential living spaces? marco On Saturday, March 12, 2022, Sindelar Solar wrote: > I would start by choosing my lithium technology carefully. I have only > installed Blue Ion LiFP batteries, and have

Re: [RE-wrenches] SMA SBxx-US-41 inverters and Tigo TS4A-O operation

Does that go for not using Tigo with the SMA Core inverter as well? marco On Thursday, March 17, 2022, Glenn Burt wrote: > I attended some SMA training last week and we were clearly and > emphatically told that they do not recomment any Tigo products be used with > their inverters. > > -Glenn >

[RE-wrenches] SMA inverters and Tigo TS4A-O operation

k%3D&reserved=0> > > This email and any attachments thereto may contain SMA America, LLC > confidential, privileged and private material for the sole use of the > intended recipient. Any review, copying, or distribution of this email (or > any attachments thereto) by others is

[RE-wrenches] Enphase IQ8

Aloha all, Was looking over the new IQ8 line-up. And couldn't find a model that's compatible with 96-cell mods (and the associated higher Vmp). Is there an IQ8 model that's a good match for 96-celled mods? Or is that model exclusive to the deal Enphase has with SunPower to provide micros for thei

Re: [RE-wrenches] Enphase IQ8

lectrician #986315 > > ------ > *From:* RE-wrenches on behalf > of Marco Mangelsdorf via RE-wrenches > *Sent:* Thursday, April 14, 2022 8:25 AM > *To:* RE-wrenches > *Cc:* Marco Mangelsdorf > *Subject:* [RE-wrenches] Enphase IQ8 > > *EXTERNAL EMA

Re: [RE-wrenches] AC Coupled Tesla system

Max rating of the Gateway2 is 200A. Regarding a generator input, you're correct, there's no means that I'm aware of to integrate a backup generator with the Tesla equipment that would interact with the solar and storage. marco On Thu, Apr 28, 2022 at 5:45 PM William Miller via RE-wrenches < re-wr

[RE-wrenches] Power One/ABB micros

Aloha all, I'm on the hunt for either Power One or ABB (which purchased Power One) 300HV (300-watt high voltage) micro inverters. Please contact me off-list if you have any or can provide any leads. Mahalo, marco ___ List sponsored by Redwood Alliance Pa

[RE-wrenches] Qualifying equipment

So why wouldn’t any particular PV module qualify as “solar electric property”? marco On Sunday, August 21, 2022, George McClellan via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Kris; Yes, this is a popular request for the manufacturers at tax time. > It is part of IRS code 25D.

[RE-wrenches] PID buggers

Aloha all, For those of us solar peeps who have installed positive grounded SunPower mods years ago that require grounding in order to perform properly, I/we have been impatiently waiting for SunPower or *someone* to offer a device (see attached) to allow for the pairing of positively ground arrays

Re: [RE-wrenches] SUNPOWER Costumer Service

Over the past year there's been a dramatic changing of the guard at SunPower. Pretty much all the top people have left, from the CEO on down. And they've made interesting choices, including to completely exit the DC mods business selling only their AC Equinox products. The SunPower of old is no mo

[RE-wrenches] old-style SunPower mods and surface polarization

Aloha amigos y amigas, Those of you who have been SunPower dealers over the years know that the early style SPR mods required a positive grounding in order to operate properly as far as produce max power. As in, without being positively grounded, a surface polarization occurs which has a signific

Re: [RE-wrenches] solar lease questions

Hey Jay, I've been doing PV on the Big Island since 2000. 15 kW STC DC on 7.6 kW AC is ridiculous and not atypical typical of Sunrun's crank-out-the-design-by-some-computer-program approach. When said program calculates a 120 percent offset, does that factor in power output clipping? I think not.

[RE-wrenches] solar panel warranty exclusion for salt water spray

Aloha all, Does anyone know of a module manufacturer who does NOT have a warranty exclusion when it comes to placing modules in the vicinity of the ocean and salt water spray? Mahalo, marco ___ List sponsored by Redwood Alliance Pay optional member dues

[RE-wrenches] PV and EMP

Aloha all, Have any of you come across any articles or white papers on how PV systems (including energy storage) fare under conditions of electromagnetic pulses and solar flares? Mahalo, marco ___ List sponsored by Redwood Alliance Pay optional member

Re: [RE-wrenches] PV and EMP

ectrician’s License 4526* > > *NABCEP Certified PV Installation Professional* > --- > > > > On 2023-03-08 11:49, Glenn Burt via RE-wrenches wrote: > > I would review Sol Arks website as they say they are immune. Probably have > something to back that up published there.

Re: [RE-wrenches] [EXT] PID and iLumen

er again, my understanding > is that they are planning on releasing a PID solution (it might be the > iLumen PIDbox). I don't know about timing or other details at this point. > > Best, August > Luminalt > > On Fri, Mar 10, 2023 at 5:23 PM Marco Mangelsdorf via RE

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