Re: [RE-wrenches] Will SolarEdge optimizers work with other string inverters?

2024-05-22 Thread Sam Haraldson via RE-wrenches
The Solaredge "Key" and "Safety & Monitoring Interface" have cut sheets dated 2014 and 2016 - so take their feasibility with a grain of salt - indicate that at some point SE optimized systems could be paired to third party inverters. Based on a quick read it looks like this technology requires

Re: [RE-wrenches] REC modules - review?

2024-05-17 Thread Sam Haraldson via RE-wrenches
Our experience with REC is similar to previous respondents. We almost solely installed REC modules for the better part of a few years and have over 12,000 (4.31 mW) of them in the field. Ironically enough our first warranty claim for one was a couple weeks ago (failed diode). The information

Re: [RE-wrenches] alte gone?

2024-05-03 Thread Sam Haraldson via RE-wrenches
Nicholas, If we take a deep dive into this issue we may be able to close the loop on whether the industry is in lock step to leverage its synergy and make the necessary paradigm shift to pivot. Alternatively if there aren't the necessary boots on the ground nor tools in the tool kit to think

Re: [RE-wrenches] Plaques

2024-04-01 Thread Sam Haraldson via RE-wrenches
Lou, It was mentioned among the myriad responses you got to this question but it's definitely worth trying the custom placards from PVLabels.com. https://www.pvlabels.com/custom-placards/ You upload a simple graphic through their website and they'll ship them out within a day or two. We only

Re: [RE-wrenches] SMA 22 series inverters, resetting AFCI fault

2024-03-19 Thread Sam Haraldson via RE-wrenches
> > ...Can’t believe SMA thought this was a good way to do this. > > The confused silence on the other end of the phone when you're talking to a homeowner about resetting this error message themselves as you describe bashing the inverter with your knuckles directly on the screen about as hard as

Re: [RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-11 Thread Sam Haraldson via RE-wrenches
A quick note of thanks to the wide variety of responses I received last week regarding my question about safely clamping CTs around live conductors. I genuinely appreciate the supportive responses. Sincerely, Sam > ___ List sponsored by Redwood

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Sam Haraldson via RE-wrenches
Adding in my vote for MT Solar. Quality product, quality customer service. I saw someone mention Wattsun as well but their product is trackers not simply pole mounts. They too have superb customer service but not for static racking. - Sam OnSite Energy, Inc. Bozeman, MT

[RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Sam Haraldson via RE-wrenches
Dear Wrenches, I'm trying to determine whether or not it is acceptable to clamp monitoring CTs around hot conductors. For this question please assume the CT wires are landed in their proper terminals and that proper PPE/safety protocol is employed. The monitored currents in question are

[RE-wrenches] Solarworld Warranty Claims Through Sunpower

2024-01-10 Thread Sam Haraldson via RE-wrenches
Wrenches, A colleague is inquiring about how to proceed with Solarworld warranty claims after its 2018 acquisition of the Solarworld brand. If anyone can provide successes or failures along those lines I would appreciate being able to share that info with my colleague. If I am able to determine

Re: [RE-wrenches] Automatic load control

2023-12-15 Thread Sam Haraldson via RE-wrenches
We have two Sol-Ark / Fortress deployments just finished/in progress and one uses seven Lumin panels for load shedding and the other has SPANs. In retrospect the Lumin project should have used SPAN since it was a new construction project and the Lumin is more of a retrofit product in my opinion.

Re: [RE-wrenches] Fortress remote monitoring

2023-12-06 Thread Sam Haraldson via RE-wrenches
Here is an official communication from Fortress that we received recently when inquiring about monitoring Fortress batteries as an Installer. Some of you may find the info relevant. -- Forwarded message - From: Date: Mon, Dec 4, 2023 at 12:37 PM Subject: Re:[## 5635 ##] Remote

Re: [RE-wrenches] Metal Truss Roofs

2023-10-26 Thread Sam Haraldson via RE-wrenches
James, I can think of one install I performed in 2017 that was a metal roof over metal purlins and we opted to through-bolt the entire array using one installer on a ladder inside and another on the roof. We employed butyl mastic and large fender washers to attach a strut frame to the roof, and

[RE-wrenches] Back Issues of SolarPro Magazine

2023-09-18 Thread Sam Haraldson via RE-wrenches
Wrenches, I have a dusty stack of SolarPro magazines and am curious if there are folks on the list who might want them. At a glance I see issues from 2014 and 2017 and presumably they're all from around that time. There are also some copies of Home Power in there. Please contact me off list if

Re: [RE-wrenches] Snapnrack end caps

2023-07-05 Thread Sam Haraldson via RE-wrenches
> ...Kevin at S was wondering if this is a common occurrence. Is it > something we are doing, is it freezing and thawing or is it the design of > the caps. > Can confirm. We receive email from customers on the regular that these are popping off. I haven't attempted to draw a correlation between

Re: [RE-wrenches] AC coupling with Solar Edge, pre HD Wave

2023-06-30 Thread Sam Haraldson via RE-wrenches
Good Morning, Dave, Take a look at this pdf and see if the info about setting up "Grid Protection" gets you anywhere. Starting on page three it shows how to make the Vmin/max and Fmin/max for screened inverters. What I can't verify for you is whether the A series has the same menu structure as

Re: [RE-wrenches] Metering

2023-05-11 Thread Sam Haraldson via RE-wrenches
The following are brands I have used and trust. eGauge - https://www.egauge.net/ Emporia Vue - https://www.emporiaenergy.com/how-the-vue-energy-monitor-works Verify there is available space within the main service to install the current transformers for the mains. Also verify there is space and

Re: [RE-wrenches] Xantrex AC Fault 186.6v

2022-12-16 Thread Sam Haraldson via RE-wrenches
I visited this site this morning and found AC and DC voltages at the inverter terminals to be within expected range (432 Vdc and 246 Vac). Since the error code on the inverter specified it being an AC problem I removed the upper cover of the inverter and traced all the terminal and soldered

Re: [RE-wrenches] Xantrex AC Fault 186.6v

2022-12-09 Thread Sam Haraldson via RE-wrenches
Barton, Jerry, Ron, and Drake, Thanks for adding your initial insight into this situation. It provided me a few perspectives I hadn't considered right off the bat. There were also questions that some of you posed that I don't have the answers to yet as I haven't visited the site nor spoken with

[RE-wrenches] Xantrex AC Fault 186.6v

2022-12-08 Thread Sam Haraldson via RE-wrenches
Howdy Wrenches, Any "old timers" here care to chime in with some basic info on what I might be heading out to see at a 10+ year old ground mount? It's a Xantrex displaying the message AC Fault 186.6v. I'm prepared to head out there and troubleshoot blind if no one has anything to offer up but

Re: [RE-wrenches] Sunpower Performance Warranty Claim

2022-11-22 Thread Sam Haraldson via RE-wrenches
*> Was surprised by one manufacturer who advised us to read that bypass diodes were not an warranty defect * *> even though the module was making half power.* Forgive me if I'm daft but someone please tell me WHAT IS a module defect if a failed diode ISN'T?!? Unacceptable. Sam Haraldson

Re: [RE-wrenches] IQ8 "line noise" issues?

2022-10-27 Thread Sam Haraldson via RE-wrenches
> ...A cheap solution that we have had some success > with is to put ferrite core snap together chokes around L1 and L2 PV Lars, If your company installs SMA Core1 inverters you'll find these ferrite chokes inside every box of them in the bag with the amphenol connectors and other miscellaneous

[RE-wrenches] Megger Recommendations

2022-10-11 Thread Sam Haraldson via RE-wrenches
Wrenches, In order to step up our commissioning and testing game and to take proactive steps to spot isolation faults and test insulation resistance prior to our systems getting PTO it is time to invest in a Megger. I am looking for your recommendations for being able to test both AC (single and

Re: [RE-wrenches] Direct to decking racking attachments

2022-06-17 Thread Sam Haraldson via RE-wrenches
Carl, We are fans of the Rooftech RT Mini product for applications that don't allow us to employ rafter attachments. We are primarily a SnapNrack installer and the RT Mini base works well with the SNR uppers. We have been using them for perhaps four years, maybe five and have seen no issue in