Re: [RE-wrenches] LG Chem batteries

I too am frustrated with LG regarding the Resu10 RMA process. No word on when replacements are coming and we keep getting “supply chain” excuses. I have not given up hope on LG as I think their Prime 16 is the right power and capacity for my marketplace, but if LG doesn’t get their warranty proc

[RE-wrenches] AC Couple Enphase microinverters to a SolarEdge Backup Interface Unit; any design insight?

We have a design challenge where we think the use of microinverters with a SolarEdge Energy Hub and inverter might provide advantages. I can not find any literature nor FAQs on AC-coupling Enphase to the backed up side of the SolarEdge Backup Interface Unit. Has anyone done it or can point me

Re: [RE-wrenches] Transmitting 15kW 3600ft Off Grid.

Especially when one considers that an island off the coast of Maine is solid rock and ragged/jagged. Just imagine that rock-sawing! Separate system! Scot Arey Solar CenTex -Original Message- From: RE-wrenches On Behalf Of Hilton Dier Sent: Monday, January 10, 2022 4:37 PM To: re-wrenc

Re: [RE-wrenches] Harris lithium battery as drop-in replacement for Outback RE2200 AGM?

Thank you. “One of the things I have found with LA batteries at high charge rates causes shortened battery life. Check with Harris for the maximum charge rate. “ I had another opinion very similar to yours and had just reached out to Harris for this info. Will keep you all informed.

[RE-wrenches] Harris lithium battery as drop-in replacement for Outback RE2200 AGM?

Does anybody have insight as to the Harris lithium battery and its use as a replacement for a RE2200 AGM that needs replacement? Our setup is dual Radian 8048s for a full off-grid home with 14KW of solar. System has performed fine but the AGMs are not doing well holding charge and customer is r

Re: [RE-wrenches] Premanufactured Pergola for PV

My team at Solar CenTex can provide solutions and has provided for others in the past. We’ve been creating these for years and it really is “the most beautiful way to have solar.” We started adding some “standard” sizes to facilitate purchases like yours. Let me know if I can help. We had a

[RE-wrenches] The legal and financial fallout from LG ESS inability to communicate RMA replacement timelines

I wanted to let my professional peers know the disappointment I am having with LG ESS. The inability of LG to communicate warranty replacement timeline has resulted in legal action against me the installer. Maybe my alert here might save some of you similar angst. As much as I'd like to push b

Re: [RE-wrenches] outback grid tie help

100% agree with Kirpal. Had the same issue on a multi-stacked 8048 setup. From: RE-wrenches On Behalf Of jay Sent: Sunday, July 18, 2021 9:26 PM To: RE-wrenches Subject: Re: [RE-wrenches] outback grid tie help HI Kirpal, This sure seems like a real possibility. I d

Re: [RE-wrenches] LG Energy Solution Battery Recall

I suspect that if you didn’t hear about it, you might not have any effected batteries. The recall has been disorganized. We had about 7 batteries under recall. LGC had some 3rd party outfit that was going to go to customer homes and do the swap-out and we said, “oh, no…we’ll replace the batteri

Re: [RE-wrenches] SMA sunnydesignweb no longer showing TS4 as an adder

Recall on Tigo TS4??? I missed that. Yikes. Scot Arey From: RE-wrenches On Behalf Of Jeremy Coxon Sent: Wednesday, March 10, 2021 1:34 PM To: RE-wrenches Subject: [RE-wrenches] SMA sunnydesignweb no longer showing TS4 as an adder It’s been a couple of months since I was on SMA’s

Re: [RE-wrenches] PV on north roof

Often can’t pick one’s roof so I’m not completely turned off to it any longer. With some clients, peak use in the summer (perhaps nat gas for winter) turns out that the north roof provides overall better offset of actual electric costs. Obviously, the lower the roof slope the better. Scot

Re: [RE-wrenches] LG chem resu 10 RMA

I have found LG and Linh to be very helpful. She is much more than “director of sales” but really the overall point person for LG Resu. Scot Arey Solar CenTex From: RE-wrenches On Behalf Of Dave Angelini Offgrid Solar Sent: Wednesday, January 6, 2021 10:51 AM To: RE-wrenches Subject: R

[RE-wrenches] looking for a glass-on-glass, frameless module; bifacial preferred but not essential

Good day, wrenches: Seeking any insight on a module that fits my needs. We used to use Sunpreme glass on glass frameless but they went under with little fanfare (and after winning a significant manufacturing award kind of like Solyndra but smaller.). We use there on our solar pergolas.

Re: [RE-wrenches] SMA Sunny Storage with LG and BYD battery: no answer from SMA

While I do not dispute Jerry’s comment except that it is not a software issue but battery design incompatibility with a battery/not PV inverter (dc to dc converter), my bigger frustration is being told by SMA that the introduction of the BYD as a replacement for one of the three LG Resu units wo

[RE-wrenches] SMA Sunny Storage with LG and BYD battery: no answer from SMA

Wanted to share my experience with the SMA SunnyBoyStorage (SBS) with the LG and BYD battery combo. For background, not until installation nearly a year back did we discover that despite early marketing literature claims, the LG batteries would not recharge during backup operations. This was be

Re: [RE-wrenches] Bad Diodes in QCells?

I just had four defective 390-watt 72-cell modules that were bad out of the box. I immediately thought it was an optimizer issue because in eight years, I've never had four modules go bad, let alone four from one box. My distributor put me in contact with Q-Cells and he was great taking info just

[RE-wrenches] Enphase noise interference to reporting; use ferrites

We have a 53 IQ7 microinverter system on new-build construction that reported and performed just great until the homeowner (a custom builder, and one I'm trying not to unimpress!) moved in Sept 1 at which point reporting went wonkers with inconsistent data, perceived underperformance that seemed to

Re: [RE-wrenches] Modifying a plumbing vent

No doubt worded horribly and we have not been “tested” by AHJs. We see it as providing ample volume for air to flow uninterrupted and we use about an inch to two. Our Unirac rails enables and here in Texas we like to have modules as far off roof as possible for air flow / heat reduction. Par

Re: [RE-wrenches] Working with SBS 6.0 and LG Chem batteries

I would like to share my experience. It does not in any way provide the AC Coupling experience that is represented. The LG Chem should never been on any "compatible" list. Perhaps they have removed it but it was clearly there (listed in front of BYD, even) and we used that representation to ins

[RE-wrenches] SolarBridge microinverter troubleshooting and path ahead for stranded customers

Good day, We used to install SolarBridge microinverters when we first started. You know the deal."we've improved what Enphase started".and they were great - up until Sunpower bought it to meet market demand for an AC-module, then a reemergent Enphase bought it from a cash-strapped Sunpower, and

[RE-wrenches] Solar Edge...continuous saga of 181/183 hardware failures...moving on to another inverter.

Time has finally come to move on from SolarEdge. Now replacing the THIRD inverter for one customer alone that has the infamous 181/183 hardware failure error code again. First one replaced in Sept 2019. Second failure and RMA July 6th 2020, and now this third failure on that replacement invert

Re: [RE-wrenches] SMA Sunny Storage AC-coupled with SB6.0 won't recharge LG Resu batteries during backup ops

@ Jerry Shafer: I think the title of the post clearly lays out that the issue I was experiencing is with LG Resu batteries. I am glad that you are having good outcomes with BYD but I never said this was part of my problem.So when you say you are "doing it pretty often" I'm assuming you are

[RE-wrenches] SMA Sunny Storage AC-coupled with SB6.0 won't recharge LG Resu batteries during backup ops

An update. LG ESS is simply not compatible with the SMA represented system of SMA storage inverter, Automatic Backup Unit, and its SMA PV inverter. Just cannot AC Couple and use solar to recharge the batteries because as soon as the battery changes from charging to discharging, it bleeds of

Re: [RE-wrenches] SMA Sunny Storage AC-coupled with SB6.0 won't recharge LG Resu batteries during backup ops

Yes, that is an aspect to this but not the root cause of the problem I am having. The product manager explained that because the LG battery has an internal DC to DC converter, when it switches between charging and discharging, there is a appx 3 second loss of power when in backup mode. He de

[RE-wrenches] SMA Sunny Storage AC-coupled with SB6.0 won't recharge LG Resu batteries during backup ops

We have a design with Sunny Storage 6.0 inverter, SB 6.0 PV inverter, the SMA Automatic Backup Unit, and three LG Resu batteries. Works like a charm during normal grid ops but when it goes into backup ops, the Sunny Storage increases frequency to between 60.6 with blips up to 61 hertz, resulting in

Re: [RE-wrenches] Oversized meter enclosure for line side connection recommendation

Milbank 200-amp meter socket and double-lug tap connectors K4977-EXT Scot Arey Solar CenTEx -Original Message- From: RE-wrenches On Behalf Of Christopher Warfel Sent: Thursday, June 18, 2020 7:58 AM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Oversized meter enclosure

Re: [RE-wrenches] SPAN - Smart home electrical panel....

I spoke with the company. Great concept as we all know but there is a processor behind it all that rep conceded was not ready for primetime (Rasberry Pi, to be replaced by higher grade). The panel was not as “smart” as the website says; i.e, it is not dynamic shifting. Getting there but not ther

Re: [RE-wrenches] Experiences working with SMA SBS 6.0 battery inverters

We have done several and there is a learning curve on some aspects. Reach out anytime. Scot Arey scot.a...@solarcentex.com 254-300-1228 From: RE-wrenches On Behalf Of Vic Guillot Sent: Monday, June 15, 2020 3:20 PM To: RE-wrenches@lists.re-wrenches.o

Re: [RE-wrenches] Solar tracker

Sun Action Tracker. We have installed dozens. 42 x 72-cell modules Call Pete Linscomb at 210-302-2141. Please do tell him I sent him to you. Scot Arey Solar CenTex -Original Message- From: RE-wrenches On Behalf Of Jay Sent: Friday, June 12, 2020 12:11 PM To: RE-wrenches Subject: [R

Re: [RE-wrenches] Enphase intermittent breaker trippjng

Actually, we had a IQ7 string loaded up to its max panel size and max string length and in the spring on cool, clear day, it tripped the string’s associated breaker in the Enphase combiner. We reset but of course that breaker was impaired and it tripped again. We replaced and never had an is

Re: [RE-wrenches] Outback Radians x 8 don't seem to sell back as much as they could in this microgrid

Thanks, Mac. Outback support was kind enough to call me on the phone and discuss. Thank you Outback – you’re the best on knowledge of your product! Back to where I’m going with this. I’m going to get in the installer menu to ensure there are not sell limits enabled that were not immediate

[RE-wrenches] Outback Radians x 8 don't seem to sell back as much as they could in this microgrid

Hello wrenches: I have a rural "micro-grid" system with eight 8048 Radian, twelve FM80s, and paralleled RE2700 batteries. I'll spare you the details of how we got here (this started as half this size bt we doubled and enlarged to micrgrid support instead of single ranch dwelling.) Because o

Re: [RE-wrenches] 705.95(B) and Sunny Boys - current on Neutral?

Mike, Thanks for posting the note, but I find the wording to be less than fully clear. According to this note, the "The transformer-less series of inverters named Sunny Boy TL-US-12, Sunny Boy TL-US-22 and Sunny Tripower 12/15/20/24000TL-US-10 have a neutral connection that is required at insta

[RE-wrenches] SolarEdge - are you listening on here???

How did a company that I would tell customers had the very best tech support in the business fall so far, so quickly. This is the 5th exchange with tech support regarding StorEdge not charging. Used to work just great.until it did not. At least I'm only 34 in line. SolarEdge - your Dire

Re: [RE-wrenches] SMA grid-tied backup LG or BYD?

LG is so easy to work with – get the handles to mount to the wall. Call me if any questions. Scot From: RE-wrenches On Behalf Of Bill Hennessy Sent: Thursday, August 22, 2019 2:53 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] SMA grid-tied backup LG or BYD?

[RE-wrenches] Changing from 2 battery cable setup to single cable for Outback?

Greetings, My team is installing a Outback Radian 8048 to replace an older dual Xantrex/Trace 5048 inverter setup where one failed either due to lightning or old age. We did not install the original system. Battery setup is 48V bank with Rolls 6CS21P Series 5000 batteries (to be quite

[RE-wrenches] Conflict between solar PV and Zigbee-based home automation??

I am installing a ground array for a customer who has a highly automated home. He calls tonight and says his automation contractor says that solar PV systems within 300 feet of the home will degrade the home automation communications which are Zigbee-based he says. I think it's the crazies

[RE-wrenches] What would cause a slow string voltage "bleed" and arc fault light

Situation: SMA5000TL with two strings of Rensola 260s was functioning perfectly fine. We had to remove system for customer to repair roof after nasty hail storm (no damage to modules). Reinstalled system and all commissioned fine. Week later - customer calls and says Arc Fault light is on. T