[RE-wrenches] Sol-Ark grid tie question

If you set up the inverter in a straight grid tie mode, does it still pass power through to the load terminals when on grid? I ask this, because a client wants us to connect it with a backup load panel but no battery right now. He wants to add the battery later. My other thought is to install a b

Re: [RE-wrenches] Sol-Ark grid tie question

pass through. > > Nick > > > > On Apr 1, 2022, at 9:29 AM, Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > > If you set up the inverter in a straight grid tie mode, does it still > pass power through to the load terminal

[RE-wrenches] Outdoor LiPO batteries

I'm trying to find out what wall-mounted outdoor rated battery systems exist for completely off-grid systems - not grid-tied. This would be for a showcase job, so the packaging needs to be attractive and durable. I'm thinking about pairing it with a Sol-Ark 12K outdoor unit. It would need to be sca

Re: [RE-wrenches] Outdoor LiPO batteries

gt; Maverick Brown > Off-Grid Solar Commander since 2006 > *Maverick Solar Enterprises, Inc.* > * • Solar Commander Remote Power* > > * • SunFlow Systems Cathodic Protection *maver...@mavericksolar.com > 512-460-9825 > > > On Apr 6, 2022, at 9:36 AM, Jason Szumlanski via RE-wr

Re: [RE-wrenches] Comms for mixed IQ-series and legacy Enphase circuit

Are you sure the boxes don't have conversion kits inside. They send us IQ7s with dongles to adapt to previous generations. The comms are not an issue, however sometimes you need to request firmware updates to make things work I've found. Jason Szumlanski Florida Solar Design Group On Wed, Apr 6,

Re: [RE-wrenches] Enphase IQ8 systems

I believe that applies to all microinverters from the M215 to the IQ8. The available power is additive as long as there is battery capacity and the micro inverters are not off due to the battery being at full capacity. If the battery is at full capacity, the IQ8 should still be able to supplement h

Re: [RE-wrenches] Module - microinverter compatibility question

The VOC will start the microinverter, but I would pair a 365W module with the IQ7+. It depends on where you are and how.much clipping there might be based on temp, orientation, etc. But, the IQ7+ is now in short supply, so you might want to look at the IQ8+. I have never had an issue with a module

Re: [RE-wrenches] Sol-Ark install

This problem is not limited to one manufacturer. One example is the Enphase smart controller. While the small holes are big enough for #6 ground and neutral, you have to strip the wires perfectly and have the hand of a heart surgeon to get them in there. And conduit entry is a royal pain because th

Re: [RE-wrenches] Enphase IQ8

The lack of clarity on the IQ7 line as a whole has been a bit disconcerting. There is a serious disconnect between what my distributors think and what Enphase reps say about the future. I know supply chain issues are tough these days, but come on... Just tell us the truth. Enphase hasn't done great

[RE-wrenches] Sol-Ark 15k

I'm not following the wiring diagrams for this new inverter. It has 200A pass-through capability with an integrated 200A load disconnect. But then it says the wire gauge for the load out wiring can be #4 to 2/0. In an off-grid scenario where there is no generator, the max continuous output is 62.5

Re: [RE-wrenches] Enphase Legacy micro replacement

Kirk, We have seen many of the conversion kits not work out of the box. I believe it is a firmware/software mismatch issue. If you call Enphase, ask them to make sure the Envoy software is compatible with the conversion kit microinverter and update all software. This should resolve the issue. Jas

Re: [RE-wrenches] Sol-Ark 15k

P.S. ICYMI, this inverter has a massive combined AC coupled and DC coupled capacity. They allow 15kWdc plus 19.2kWac!!! Impressive. On Fri, Apr 15, 2022 at 10:59 AM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > I'm not following the wiring diagrams for this new inverter. It

Re: [RE-wrenches] Sol-Ark 15k

u bring up a valid point….in an off-grid scenario with the 15k do you >> size the conductors to the continuous capacity, surge capacity or the OCPD >> of the unit? >> >> -Chris >> >> On Fri, Apr 15, 2022 at 4:01 PM Jason Szumlanski via RE-wrenches < >> re

Re: [RE-wrenches] Sol-Ark 15k

that rating. Just remember its whatever the max output can be >>> plus your margin. >>> >>> On Fri, Apr 15, 2022, 5:44 PM Chris Sparadeo via RE-wrenches < >>> re-wrenches@lists.re-wrenches.org> wrote: >>> >>>> Hi Jason, >>>>

Re: [RE-wrenches] Sol-Ark 15k

s@lists.re-wrenches.org> wrote: > The tap rule says you can reduce to 10% of the nominal size for 10 feet > and protect at the downstream OCPD or 25% for 25 feet for solar with > multiple sources see 705 > > On Sat, Apr 16, 2022 at 9:16 PM Jason Szumlanski via RE-wrenches < &

Re: [RE-wrenches] Fronius in the game?

I don't know the answer to your question specifically, but in Florida we are light years away from Smart Grid requirements. The latest net metering law debacle here carries us through the end of the decade. I don't think smart grid is a battle that anyone is going to fight here anytime soon, so the

Re: [RE-wrenches] Sol-Ark 15k

i, Apr 15, 2022 at 4:01 PM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> P.S. ICYMI, this inverter has a massive combined AC coupled and DC >> coupled capacity. They allow 15kWdc plus 19.2kWac!!! Impressive. >> >> >

[RE-wrenches] Solar Roof Jack

Has anyone used this product? I'm looking for feedback on installation ease and your impressions. Jason Szumlanski Florida Solar Design Group ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-

Re: [RE-wrenches] Solar Roof Jack

ere and > get stuck in the horizontal run on the roof. I’m not a plumber though…so > maybe I’m over thinking it. We put a screw into the cap just in case > > > > On Thu, May 12, 2022 at 7:33 AM Jason Szumlanski via RE-wrenches < > re-wrench

Re: [RE-wrenches] wire management on Qcell AC module

That's concerning. We just added these to our product offerings. I reviewed the QCell installation manual for this product and there doesn't seem to be any guidance on the subject. Are the DC leads tight enough when connected to the microinverter that they would not sag enough to touch the roof, o

Re: [RE-wrenches] wire management on Qcell AC module

Except if it is UL listed and tested as part of the assembly. Haha. I seriously don't that happened, but technically... Bottom line, a manufacturer should supply guidance on this. On Thu, Jun 2, 2022, 1:02 PM Dana Orzel via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Tape is not ap

Re: [RE-wrenches] Solar Edge - appears generator integration is not on any near-term path to completion

FWIW, the Enphase generator integration rollout has been less than ideal as well. Their list of approved generators is highly restrictive and has obsolete units listed with no clear process for getting current models approved. How are we supposed to sell these systems without clear and confident an

Re: [RE-wrenches] The Questions of product reliability

My experience with microinverters is much different. Yes, there were lots of Enphase M190 replacements. But of the 40 M215s on my roof, only one has failed in 9 years. Each successive generation has been more reliable. I consider the failure rate at this point totally acceptable, even for the syste

[RE-wrenches] Enphase IQ7 versus IQ8

I am trying to figure out why it is a good idea we use the IQ8 in anything other than a solar only backup scenario. If there are Enphase batteries involved, wouldn't the IQ7 do the same job on the roof? In a straight grid tied scenario, again the IQ7 would do the exact same thing. You would not hav

Re: [RE-wrenches] Enphase IQ7 versus IQ8

controller to the rapid shutdown switch. On Tue, Jul 12, 2022, 5:15 PM Mark Frye via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Do you need the additional switch if you use the Enphase battery? > > > > *From:* RE-wrenches *On > Behalf Of *Jason Szumlanski

Re: [RE-wrenches] Enphase IQ7 versus IQ8

nloading attachments.* > > > > > Hi Jason > > And if you don’t have the smart controller/battery system then you do not > need this proprietary rapid shut down switch correct? > > Jay > > > > On Jul 12, 2022, at 3:25 PM, Jason Szumlanski via RE-wrenches < &g

[RE-wrenches] LiPO with Trace SW5548

Any suggestions for LiPO batteries that play nice with the SW5548? This system also has an Outback CC for a pretty small PV array (rating TBD). Based on some pics I received from the client, the current lead acid battery appears to be around 40kWh and was slightly undersized, so I'd be looking for

Re: [RE-wrenches] Looking to upgrade my presentation

It's not the most elegant solution, but if you have another source of imagery you can import it into Open Solar. Once you have the imagery in there and scaled, it works quite well. Jason Szumlanski On Wed, Jul 13, 2022, 10:54 AM Dana Orzel via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrot

Re: [RE-wrenches] LiPO with Trace SW5548

wrote: > Fortress Evault max, good form factor, simple > Jerry > > On Wed, Jul 13, 2022, 3:05 AM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Any suggestions for LiPO batteries that play nice with the SW5548? This >> system al

Re: [RE-wrenches] off-grid AC coupling feasibility

Hi Kirk, I have not done this personally, and this does not pertain to your specific situation, but related to this subject is the Sol-Ark 15k has a massive AC coupling capability even with maximum DC connected PV. I really like this idea for people that want a huge PV array but only need the cont

Re: [RE-wrenches] 26% to 30% ITC for 2022?

I have a trusted source here in Florida that read the Senate Bill text and said it would be retroactive to 2022. The way I am handling it is telling people my prices will surely be more than 4% more in 2023. They would be shooting themselves in the foot by delaying their project. Jason On Fri,

Re: [RE-wrenches] 26% to 30% ITC for 2022?

rs-at-30/ >> >> Dana Orzel >> C: 208.721.7003 >> E- d...@solarwork.com >> >> On Aug 12, 2022, at 4:54 AM, Jason Szumlanski via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >>  >> I have a trusted source here in Flori

Re: [RE-wrenches] Converting Enphase systems to ac coupled multimode systems

Enphase worked out a lot of kinks with their battery storage. Commissioning time is cut way down. I've been liking it (other than the price). One of the biggest problems I would say is the clunkiness of the conduit connections, especially to the Encharge 10T which only has conduit entry on the lef

Re: [RE-wrenches] Discover AES Wall Mount Considerations

That won't be a problem as long as they are spread across several studs. Even 2x4 studs would be fine. Check the installation manual for details. The shear and pull out strength of the fasteners will be the limiting factor, not the wall itself unless very poorly constructed. https://assets.discove

Re: [RE-wrenches] Discover AES Wall Mount Considerations

227 kg (500 lbs) per battery. Failure to follow these instructions can > result in death or serious injury.” > > Other than asking a structural engineer, how can I be sure that the wall > is rated to 4,500 lbs? > > On Tue, Sep 6, 2022 at 9:20 AM Jason Szumlanski via RE-wrenches < >

Re: [RE-wrenches] Enphase

I should probably write this in 48 hours after Hurricane Ian passes by here. But I'll give you a couple of personal opinions. Complicated? No. It's pretty dead simple since there is no DC aspect to consider. But there are a lot of little things, I'll call them quirks, to learn and understand to ma

Re: [RE-wrenches] Enphase

ives in Tampa I told him to do the same > thing. > > On Mon, Sep 26, 2022 at 7:30 PM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I should probably write this in 48 hours after Hurricane Ian passes by >> here. But I'll gi

[RE-wrenches] Early Hurricane Ian Report

Widespread devastation, but only a handful of reported PV failures. Sanibel Island was thrashed and nobody has installed more panels there than we have. Post-storm aerial imagery shows that almost all systems survived. A couple of flat roof pitched systems had about 20% of panels break free with mo

Re: [RE-wrenches] Early Hurricane Ian Report

ishes and concern. Jason On Sat, Oct 1, 2022, 4:47 AM Kirk Herander via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I wish you the best in your efforts of repair and replacement. Did you > evacuate or end up toughing it out through the hurricane? > > On Fri, Sep

Re: [RE-wrenches] Looking for remote controlled contactors

I'm not a fan of this strategy because it is not failsafe. Contactors fail. When the coil fails to open the contactor, you will have the PV AC coupled with the generator If he normally closed contactor is used in this manner. I think the question needs to be the converse: How do you turn the PV on

Re: [RE-wrenches] Looking for remote controlled contactors

oupled grid-tie PV inverter disconnected. Which means the contactor at the > PV inverter should be energized "closed" (so PV AC connected normally open) > under normal operation (genny off, PV on). > > Wired as such, It can be done with off the shelf components, and remotely >

[RE-wrenches] Accuracy of Enphase consumption monitoring

I received this question from a non-client: *On a daily basis, FPL [Florida Power and Light] (per their app) consistently shows a 20 to 40% (higher) difference in what they delivered and received vs what Enphase app shows as imported and exported. My installer can not explain why. Any ideas?* I

[RE-wrenches] Wireless relays

Recently there was a discussion about remotely controlled contactors to shed PV during generator operation I believe. I have a little bit of a different need for remote relays. I need to remotely disconnect air conditioning 24 volt control circuits using the dry contacts in the Enphase smart contro

Re: [RE-wrenches] Sunpower Performance Warranty Claim

This is why I have an article on my website to explain to prospective clients why module warranties are mostly useless. The cost to evaluate most potential problems is prohibitive. Now if you have a major manufacturer failure and every module is obviously bad, that could be grounds for a warranty

[RE-wrenches] Enphase IQ8 to ESS Ratio

I have seen in press releases that there is no limit to the number of IQ8 microinverters on the roof relative to the battery size. I can't remember if I saw this in Enphase marketing or directly in the documentation. But in reality, there is a limit. It's 64A of inverter output current since the Sm

Re: [RE-wrenches] Enphase consumption data

It is my understanding that you cannot have the consumption CTs enabled without the production CT enabled. When the solar is connected on the load side of the consumption CTs as it is in this case, the production CTs are required to make the math work. It cannot use the microinverter readings for t

Re: [RE-wrenches] Envoy-R replacement

Be very careful with old units on eBay. They may not be usable. There was a security certificate update that was necessary to keep units communicating with Enlighten. If the unit was offline and the update was not applied, it was essentially bricked from a remote upgradeability standpoint. I can't

Re: [RE-wrenches] Envoy-R replacement

(707) 321-2937 // cell > > *Powering What’s Next*™* | *The Enphase Energy Management System > <https://enphase.com/en-us/products-and-services/envoy> > > NABCEP Certified Solar PV Installer #03262011-300 > > California C10 Licensed Electrician #986315 > > ---

Re: [RE-wrenches] Remote battery disconnects

I have been following this discussion intently. I hate to say it, but it all sounds like a major case being made for AC-coupled system architecture, and even integrated "AC Batteries" like Powerwalls and Encharge that integrate the battery and inverter into listed Energy Storage Systems. As someone

Re: [RE-wrenches] NEC 230.46 spliced and tapped conductors

As someone who does 75%+ supply-side interconnections, this kind of terrifies me. We have another year of NEC 2017 here, so I have time to prepare, but I'm watching this closely. Meter disconnects/reconnects here are difficult due to the lack of good utility company cooperation and the requirement

Re: [RE-wrenches] Remote battery disconnects

Just a quick comment about flipping breakers randomly. This also applies to AC-coupled systems. There should be zero risk of flipping breakers in random order. These devices are there to prevent overcurrent and disconnect circuits safely under load. If there is a specific order in which breakers mu

Re: [RE-wrenches] Remote battery disconnects

like one thing is for certain - > batteries and energy storage (in all their forms) are here to stay! > > August > > On Fri, Feb 3, 2023 at 5:27 AM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Just a quick comment about flipping breakers r

[RE-wrenches] Solectria PVI 14TL

If anyone knows where I might be able to find a couple of replacements for this inverter, please let me know. I have a couple that were underwater from Hurricane Ian. I'm debating what to do. Any other thoughts for an easy replacement would be appreciated if these are no longer available. Jason S

Re: [RE-wrenches] Solectria PVI 14TL

Correction, I just found out what I need are actually PVI-7600TL On Wed, Feb 22, 2023, 11:40 AM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > If anyone knows where I might be able to find a couple of replacements for > this inverter, please let me know. > > I have a couple that w

Re: [RE-wrenches] Enphase ACM to rail mount plate

Is this a warranty issue? If so, the manufacturer should be supplying a new microinverter as well. We had a little "experiment" with Qcell AC modules. A couple dozen contracts and our guys hate them. The wire management is a nightmare for the Q cable, and The module manufacturer didn't do us any f

Re: [RE-wrenches] Enphase ACM to rail mount plate

What Mac is saying is there is no metal flange on the microinverters that are attached to AC modules. They just snap into a plastic flange adhered to the backsheet. It's just a plastic case with no way to attach it to rails or a panel frame. William's solution requires a microinverter with a metal

Re: [RE-wrenches] Attaching Array To or Through Ply

This thread has morphed into more than it started as, and for good reason. I want to provide some practical/anecdotal information, having just gone through arguably the most catastrophic wind event in Florida's history (Ian) since the boom in solar energy started, and another major wind event (Irrm

Re: [RE-wrenches] Attaching Array To or Through Ply

lists.re-wrenches.org> wrote: > If you look at FEMA's design guide for solar installations in FL and the > Caribbean, the recommended module to rail attachment method is back to > using the attachment holes in the solar module. Chris > On 3/30/2023 5:56 AM, Jason Szumlanski vi

Re: [RE-wrenches] Attaching Array To or Through Ply

rench, or *drill with a clutch* set > low to snug up the clamps, and then final torque with a torque wrench. > Period. > > Ray Walters > Remote Solar > Former NABCEP 2004-2016 > > > On 3/30/2023 4:34 PM, Jason Szumlanski via RE-wrenches wrote: > > That would be great if it

Re: [RE-wrenches] Enphase failure

There's always the Cellular connection option (if available there). Jason Szumlanski Principal Solar Designer | Florida Solar Design Group NABCEP Certified Solar Professional (PVIP) Florida State Certified Solar Contractor CVC56956 On Thu, Apr 13, 2023 at 9:01 AM Jay via RE-wrenches < re-wrenche

Re: [RE-wrenches] Retail price lists

Here is how I explain it to customers. Straight out of college, I was a financial analyst for an aerospace company working on government contracts. We did "cost-plus" contracts, which is what the client is essentially looking for. The government ended up paying too much for things this way. A fixed

Re: [RE-wrenches] Bonding Metal Roofs Part II

I'm watching this thread with interest. Is anyone aware of any serious injury or property damage caused by an energized metal roof, and if so, what were the circumstances? Is bonding metal roofs a solution looking for a problem? In response to the ground mount alternative, that isn't really an opt

Re: [RE-wrenches] 2018 Residential Code Fire Setbacks

If you read the section carefully, it reads on both sides of "a" horizontal ridge. It does not read "each" or "all'" horizontal ridges. I know that this interpretation has worked in some jurisdictions in Florida. On many hip roofs, there could be several horizontal ridges. It could be interpreted o

Re: [RE-wrenches] Remote load shedding

I'm interested in this also. This is becoming increasingly necessary as we install "whole home" backup systems, but we need to dump a load that is on a downstream subpanel. A common need is to shed pool equipment like electric heat pumps and pool pumps when utility power is lost. In other cases, th

[RE-wrenches] Parallel Homegrid Stack'd Busbar

Hi all, I'm doing my first installation with two 24 kWh Homegrid stacks. They will feed two Sol-Ark 15k. I'm seeking recommendations on busbars for connecting this up in the most elegant way possible. Pictures speak 1,000 words, so if you have any I would appreciate it (off-list is fine). Jason

Re: [RE-wrenches] Parallel Homegrid Stack'd Busbar

> Thanks > > > On Thu, Jun 29, 2023 at 6:17 AM Maverick Brown via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I recommend the Victron Lynx Power In or the Lynx Distributor. >> >> Thank you, >> >> Maverick >> >> >

Re: [RE-wrenches] Parallel Homegrid Stack'd Busbar

for the same purpose. > > > https://www.midnitesolar.com/productPhoto.php?product_ID=439&productCatName=BATTERY > > I’m curious what others may suggest for options. > > Thanks > > Rich > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behal

Re: [RE-wrenches] Parallel Homegrid Stack'd Busbar

nverters/JP_Radian/JP_Radian.html > > > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.o

Re: [RE-wrenches] Parallel Homegrid Stack'd Busbar

> The Sol-Ark 15k has dual battery input terminals so they can be combined > right inside. This could be a good option to consider. > > > > Thanks > > > > > > On Thu, Jun 29, 2023 at 6:17 AM Maverick Brown via RE-wrenches < > re-wrenches@lists.re-wrenches.o

Re: [RE-wrenches] Parallel Homegrid Stack'd Busbar

t; terminals in the Sol-Ark 15k for full power, or the Homegrid bus bars that > Jason shows. > > > > Brad Bassett > > > > > > On Thu, Jun 29, 2023 at 6:57 AM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Lloyd,

Re: [RE-wrenches] Pro Power saving device

These were so aggressively marketed around here a while back. I had to write multiple articles about them to explain why our competitors were scamming people. They were marketing them as "KVAR" devices for a while. https://floridasolardesigngroup.com/energy-saving-devices/

Re: [RE-wrenches] Cell Cracks

I was searching the forums for information on Peimar modules and this is all that came up. Does anyone have any experience with recently produced PERC modules from them? They are being offered through my distribution network at an attractive price, but I am a bit skeptical. Jason Szumlanski On

Re: [RE-wrenches] Roof-mounted j-box

I can't speak to longevity since it just came out, but EZ Solar just came out with a pretty interesting rail-mounted j-box option that clamps to the rails with hose clamps. It sounds strange at first, but in practice I found the samples to work very well. Check out their JB-3 model. https://ezsola

[RE-wrenches] Sol-Ark 15k Conduit Entries

I see a lot of pictures with conduit nipples coming out of a gutter that are fairly long. I have a height limit issue and I'm wondering if there are any negative implications of using very short nipples between a wireway below and the inverter. I'm thinking about using close nipples or perhaps 2-in

Re: [RE-wrenches] Sol-Ark 15k Conduit Entries

when we >>> have many VFD's over a gutter. Someone a while ago asked for a picture >>> showing how we make long bussbars. This one is 24' long. >>> >>> On Wed, Aug 2, 2023 at 10:08 AM Jerry Shafer via RE-wrenches < >>> re-wrenches@lists.re-wre

Re: [RE-wrenches] Sol-Ark 15k Conduit Entries

but the intent of the code is really > to prevent things like putting a transformer in front of a panelboard or > some similar situation. > > On Fri, Aug 4, 2023 at 6:52 AM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Thanks, Lou.

Re: [RE-wrenches] Flashing Identification

book on bad installs? My apologies for poking fun but WOW, my > guys will think I made it up. > > > > Thx > > Peter Giroux > > > > *From:* RE-wrenches *On > Behalf Of *Jason Szumlanski via RE-wrenches > *Sent:* Monday, August 7, 2023 5:36 PM >

Re: [RE-wrenches] Hawaiian Tie in

The Feeder Tap is our preferred method when available. However, I think you will find engineers who disagree that the tap can occur anywhere along the feeder. In my experience, PEs want to see that tap done with the downstream OCPD close to the tap. We would normally tap immediately before the subp

[RE-wrenches] AC Coupling PV Inverters and Generators

Are there any options out there similar to the Enphase System Controller MID that directly couple the AC outputs of a PV inverter and generator to simultaneously power loads? And can any do it with or without batteries involved? Jason Szumlanski Florida Solar Design Group _

Re: [RE-wrenches] Fronius USA available 2023 & 2024 ?

Fronius was dead to me after the IG failure rate and customer dissatisfaction that came from it. I never sold SolarEdge, and I am glad I didn't for the same high failure rate issue. Today I am swapping out so many HD Wave inverters, dealing with the 3G modem shutdowns, and constantly fighting with

Re: [RE-wrenches] Fronius USA available 2023 & 2024 ?

It is so interesting hearing about different markets and what products are popular and well supported. My impressions of the Florida market is that it's 85% Enphase, 10% SolarEdge, and 5% Other. I'm not a distributor, so that's just my view from the bottom, but there isn't a significant competitor

[RE-wrenches] Franklin Home Power

Does anyone know if Franklin supports their AC-coupled battery solution in a completely off-grid scenario (no grid present)? I need to install a demonstration system with ~40kWh capacity to run loads in an outdoor off-grid facility. It needs to be wall mounted, NEMA 3R, and have 10kW AC output rat

Re: [RE-wrenches] Franklin Home Power

ville | Bloomington | Cincinnati | Evansville | > Indianapolis > > 513-448-5176 (mobile) > > 877-312-7456 (Main Office) > > da...@sesre.com > > > > *From:* RE-wrenches *On > Behalf Of *Jason Szumlanski via RE-wrenches > *Sent:* Thursday, September 1

Re: [RE-wrenches] sol ark AGS question

I just replaced two Sunny Islands and one Sunny Boy that I did not install with a single Sol-Ark 15k today. The generator installer (not me) had already installed a custom but simple time delay relay. I didn't get into the logic of it, but from what I understand the generator already had a cool-dow

Re: [RE-wrenches] sol ark AGS question

irmware. > > On Fri, Sep 15, 2023 at 4:56 PM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I just replaced two Sunny Islands and one Sunny Boy that I did not >> install with a single Sol-Ark 15k today. The generator installer (not me

Re: [RE-wrenches] Franklin Home Power

gt; Jerry > > On Thu, Sep 14, 2023 at 1:35 PM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Does anyone know if Franklin supports their AC-coupled battery solution >> in a completely off-grid scenario (no grid present)? >> >>

Re: [RE-wrenches] GT w/ BB

I like the Sol-Ark idea having had a few dual-unit successes recently. In terms of combining them, the Sol-ark manual has a good triple unit wiring diagram on page 53. You would have to use two 400A panelboards with three 200A breakers for each to follow this diagram. However, I don't see the point

Re: [RE-wrenches] Module level electronics mounting

You might run into 110.3(B). The manufacturer's instructions are likely to say the DC leads of the PV module are to be plugged directly into the MLPE. For example, the Enphase IQ7 microinverter instructions state, "Connect the DC leads of each PV module to the DC input connectors of the correspondi

Re: [RE-wrenches] Nuance ground racking

On that subject, what bits are people using to drill holes through block/concrete (for 1" - 2" conduit)? We have been using some dry diamond coring bits we buy online, but they don't seem to last. We have had them break off at the weld. Wet coring seems overkill for the relatively few holes we need

Re: [RE-wrenches] Nuance ground racking

These work well for smaller conduit but when you get into 1-1/4" and greater trade sizes, especially when you need to get a fitting into the wall, I think you need to go to core bits. I don't think they make spiral bits that big with SDS shanks, but I could be mistaken. Jason Szumlanski Principal

Re: [RE-wrenches] Cleaning PV mods

I don't understand the thermal shock nonsense. It routinely starts downpouring here when it's blazing hot out (sun showers) and the rain is way cooler than ground water in summer. It makes no sense. If hose water from the ground is going to hurt solar panels, you better not put them where it rains!

Re: [RE-wrenches] Cleaning PV mods

en the micro >> fractures connect to each other and the whole pane breaks up. You can't do >> much about sun showers but you can certainly avoid spraying the hose on hot >> glass. >> Kent Osterberg >> Blue Mountain Solar >> >> >> On 10/20/20

Re: [RE-wrenches] Cleaning PV mods

heir array with cold well water in the middle of the > day, which shattered the module glass. > > > > I’m sure it was an isolated incident, but it happened. > > > > Thanks, > > Will > > > > *From:* RE-wrenches *On > Behalf Of *Jason Szumlanski via RE-wrenches

Re: [RE-wrenches] AC Coupling

I read through this thread, and I don't think one important aspect was covered with respect to "overcharging" batteries. There may be risk with lead acid batteries connected to a hybrid inverter that is AC coupled. But LiPO batteries have a BMS that is there, in part, to protect the battery from an

Re: [RE-wrenches] Discoloring Solar World panels

I have the same question as Jerry. It's not brand-specific, either. We have had panels from various manufacturers over the years where we installed them, and clients noticed a difference in color/look/reflectivity from day one essentially. Sometimes, it's just the angle you are looking at them. We

Re: [RE-wrenches] Metal Truss Roofs

I agree that you can get impressive pull-out resistance from fasteners in plywood decking only. Two brands that publish pull-out values are OMG/Drill-Tec and Blazer. The #15 OMG screws are what we lean toward. John Mansville also has a "High Load Fastener," but I think it's just a rebranded OMG. I

Re: [RE-wrenches] AC Coupling

they incorporate a lot of complexity that may make them > unreliable unless charged and discharged very carefully. I do not believe > AC-coupled charging is a good way to charge lithium batteries, or any > battery. > > > > William Miller > > > > Miller Solar >

[RE-wrenches] USVI Enphase Installers

I was approached for a consulting job in St. John, but I would rather hand it over to a competent local installer who is certified with the new 5P battery and related components. Please contact me off list if you are one or know one. Also, just out of curiosity, what are the licensing and permitti

Re: [RE-wrenches] Grid Tied Inverter back feed to Generator

AC coupling the Enphase IQ8 microinverters with a generator and no batteries is a supported setup with their System Controller 2 or 3G. The "Sunlight Only Backup" system in this configuration starts the generator automatically during a grid outage, but generator power will only be used if the loads

Re: [RE-wrenches] An Aspen Builder asked me an opinion

Watching with interest. We deal with similar circumstances/requests in Naples, FL often. I'll comment on the battery capacity limit. If the jurisdiction has adopted and enforces NFPA 1, and by extension, NFPA 855, you will be limited to 80kWh of battery capacity unless you place them in a detached

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