Steve87

Good luck, usually this won't end well for both parties. It will cost you money, headache & time. He won't be willing to accept he did you wrong. Unless you willing to contract a law firm to take him to task & usually that amount of money would constitute you just making the best of a bad situation & adding to that system. Seen this too many times...What a mess.

Hi Guys, that pricing is about in that region. The machine works well & if you can hang a TV & get a competent Electrician that can wire the AC side and spilt loads from Essential & Non then this solution is perfect. The machine has the ability to parallel & can take PV and has a CT coil exactly as the normal Sunsynk inverters and sports the exact same operations. Except it has cooling fans but they are much Quieter than the Voltronics type of machines. The connectivity is via the Sunsynk Connect App, however, you cannot change settings yet on the app I suspect that will still be developed. I was very Impressed by the quality & the price point. Overall, this product on face value will be a winner. Once again, if Deye launch the same machine I don't see any difference as they are OEM. In fact this point in time I would buy a Deye product of anything Sunsynk as their support and RMA is 2 weeks vs 6 weeks. This particular product is still new but if considering Deye I'd say jump both feet in, just make sure to pair up with a Solar assistant because I must admit the user interface on the Sunsynk is better but when Solar assistant is added there is zip difference.

No clue where you are but I have equipment to measure, test as well carry out some diagnostics on these cells. I'm pretty sure there is still heaps of value in these cells. Your post has been very entertaining & your summary is 100% spot on...I am in Honeydew, I have an obsession with batteries & have built a fair few Li packs & also installation residential & commercial solar systems. But my major interest lies in batteries. Great topic!!!

Very good explanation above...Gets down to the exact reason of why the SANS says why it does.

A fairly new product that I think will add a lot of value to ppl living in an apartment. The Loadshedder 4. It's a 3.6kW all in one unit by Sunsynk. There is also a 2.4kW Loadshedder 2 machine also available. Given that this client has a gas geyser gas stove the 3.6kW will go a very long way. Also with a 40A AC passthrough this device is in actual fact a very valuable performer. It has the ability to add Batteries externally or to parallel more units to expand and scale.

Looks like you definitely have a bone to pick with that installer...

If I can remember at the time you were In the market for an installation & that installer looks to have pulled the wool over your eyes. There is not such Canadian Solar panels of 540W with such dimensions. Your panels are closer in dimensions to the 430W family. See the pics attached & these are taken off official Canadian Solar data Sheets. Too many Cow boy installers doing this. It's the oldest Bandit trick they have in their book. Please Ladies & Gents, protect yourselves. Take a pic of the back sticker of your panels & measure the dimensions of the panels. Once they on the roof it's too late & by the time you see the poor performance the Crook is long gone!!!

The presence of the Grid is always monitored. So this is not possible to take place where the Hybrids don't island. One must also remember that the Grid has a requirement to push GW of energy. Unless every household had a Hybrid it would be hard to keep the Grid tie machine on. However, you touch on a very important aspect called AC coupling. Where you take a Grid tied inverter and connect it to the output AC of a suitable inverter. That Grid tie inverter is looking for an AC power source & a suitable machine can provide just that. Under such a. Circumstance you then have a Micro Grid.

Hi @Beatdesigning systems and installing them has made my curiosity of the subject increase for obvious reasons. I came from your world of Off grid inverters from Voltronics & have also had a good education from guys like @BritishRacingGreenwho have exposed the gutts of these machines & actually the OG7.2, OG10 & all the high voltage Solar charge Controller Inverters in the Voltronics range use Grid tie technology to be able to blend power sources even though they are not able to export power. To answer your question one must understand what it is to Grid tie. It's a machine that Sychnonises with the Grid in terms of voltage, frequency and waveform. They therefore "Tie to the grid" or attach themselves to the grid. They do this In order to export power to the grid. They do not have traditional Ac input & AC output ports, it does all it's work with one Grid or AC port. That Grid port is By-Directional because it can draw power as well as export power from that port more especially in the case of a Hybrid like the Solis Hybrid range & the Sunsynks/ Deye inverters. A lot more technical than my short summary. In scenario a) exporting during sunshine -- the machine will recognize that the grid has disappeared & will for a very short period continue the export but then eventually stops dead in it's tracks. That period is short it must Island or stop export & this is a design requirement & this is especially tested in labs for grid certification. You cannot have a system pushing power into the Grid when the grid is down. If it does continue to push power back then it's failed it's certification & won't get a pass. This stopping of export is very similar to a full battery scenario & zero load on an Off grid machine with a lot of solar panels attached on a sunny day. The PV Array ramps down as there is nowhere for the energy to go. b) at night the same happens except there is no PV. Some systems like the Hybrids can export battery power & the same fundamentals are tested. In all these scenarios the Grid tied machine or Hybrid relies on the CT coil as well as sensors at the Grid port to tell it that the Grid is present. Why a CT coil is especially important is that it is just a Glorified AC clamp like a Multimeter telling the Grid tie machine or Hybrid how much energy is being exported. So with a Grid tie or Hybrid you can export or dump energy into the Grid without a CT but then you have no control over how much energy is being exported. The tap is either fully open or fully closed. That is why a CT Coil or Meter is fundamental if you want to restrict yourself to powering non-essentials on a Sunsynk with zero export. The CT is metering the traffic & flow of the amount of export of electricity. This is a very watered down explanation no doubt a lot more to it but in Layman's terms this is what the various aspects involve.

Unbelievable, 🤣 how these lawyers bury you in red tape. I think this is also very important in this list. There are terms & conditions & these are as important as the purchase itself. Watch out for these because no PV surge protection or AC surge protection can void warranties.

Ok so let me start off with one brand pretty sure they would hack the top 20. Sunsynk. Standard warranty 5 years on inverters extendable to 10 yrs if inverter sold paired with Sunsynk batteries. Currently 6 week average wait for a repair on fault equipment. A satellite office in Randburg for repairs etc. So they do have a real SA presence. I will only add to the list of these in my own scope of operations as an installer & what I have discovered.

I think you will end up with more of top 20 brands and warranties than distributers. Distributers can really only honour what the main brands offer to the paying public.

Hi @Karishthanks for such a wonderful review. Glad we could get your system going!!!

If you think it will blow up then observe good judgement & live without it.

I think one must look at the logic of the OEM , when you think about the capabilities of such a parallel combination. When you parallel let's say 2 x 5kW machines you effectively have a single 10kW machine at the end of it. Changing settings in the master or slaves Work mode timer changes both. The Load & Grid Breakers are in parallel. Surely the same has to be said about the AUX port. The inverter seize to be individual 5kW machines & assume the role of 1 x 10kW powerplant. Meaning also that they will share the AUX load or even share the PV input if a said mictoinverter is added.

My humble apologies to the original poster, we have side tracked your thread way off track!!!

When one looks at this document there is nothing left to the imagination in terms of what type of installation it was. What inverter? What power plant size. What AC & DC wire size used. What isolation & MCB sizes used....

It honestly doesn't need to because it does not replace the CoC as we know it neither is it pretending to. However, it's got all the nity grity of the DC side of the installation & Breaker size, fuse sizes, string length, panel size, Wiring diagram & actually makes what should be a compete CoC for a solar installation. The solar installation CoC that can't answer how many panels are on the roof & what layout falls very short of what it should be currently. We not there yet in terms of cleaning up this industry but this document does go a very long way into bridging the gap. I am also not trying to affiliate to either of these two Bodies, I'm merely stating what good work has been done & formalization of these testing forms & documents covers the juicy important details required. I will post a pic of the document. If anything this should provide piece of mind for a person who gets such an installation done. By the way this is not some new CoC unofficial document it's a guideline that I really welcome & all these documents formally in my mind constitute a proper inspection of work done & will make any omissions & deviations stand out.

A very important point. There is absolutely zero information on the DC aspect. That is why it good to use the AREP or PV Green card CoC document which is much more comprehensive & covers the DC side in good detail. I use it because if there is a come back or a claim that the equipment installed wasn't to spec or an insurance claim me as an installer are fully covered.

This is standard practice. They trying to weed out a poor installation etc. Also it can also be a weed out a claim based on no CoC.

Hey @TaliaBthat's the issue, the inverters are getting absolutely cranked when the grid returns & with all these high frequency of events it makes these inverters take on much higher than normal voltage spikes & unfortunately IGBTs cannot sustain this & main boards are dieing like flies. The guys make it out to be planned maintenance. IMHO planned means you make provision for ppl in terms of warning before the event. More.closer to the truth would be more like, we can't run the entire country on a Gene. The logistical problem with doing that is keeping up with the Hungry turbine. Piped diesel is the only way to make sure you don't run dry. Even the largest aviation production Turbine engine chews up close to 8kL per hour. That OCGT is much larger so we looking at staggering amounts to keep up with a hungry power plant. What we are seeing is closer to the reality that we are left with. On the plus side at least it's warmer now...

Segen Solar also having massive issues because they are having to replace main boards for fun & all that is required is this delay timer & over/ under Voltage regulator. They are mandating that warranties might be affected without such a similar device being installed. The main events are when Grid returns after loadshedding. Pay attention if you have these Axpert of off grid inverters. It might save you a main board replacement. I have heaps of these in the field & this week alone had 3 breakdowns with either fuses blown & 3 OG10 main board replacements under warranty. These main boards cost R7.5k each. The Off grid inverters are vulnerable.

Install this it will save your Axpert & any off grid inverter. One must remember that the Deye & Sunsynk are grid interactive and they have a 60s delay when the grid returns that will wait for grid stabilisation. The Off grid inverters don't have this function. I have fitted this device to all the Off grid inverter setups & it will save your machines main board because it waits 30s before the AC input is restored. This device costs in the region of R400 odd bucks. If it saves a main board worth R1000s of bucks then I think it's worth it.

@Jemyes you are far away from us here on the Southern tip of Africa. Please keep us updated, we have received numerous issues with Pylontech batteries & BMSs doing almost exactly what yours has just done. After the repair of the batteries that was done by @BritishRacingGreenit also appears that they have placed fuses that cannot be replaced onto the BMS board. They can be replaced obviously but not by a normal person without Surface mount Board experience. Now I'm not an engineer neither am I a salesman, but sending a battery to world markets that has fuses that need specialist workmanship to replace is not a good way to go in this market. As you can see how far & wide these products go. Now you have a guy in South Africa whom has these skills pretty sure others around you in Belgium but it's just a show stopper. I hope they warranty you properly & with knowledge of the EU laws pretty sure you will be in good stead. Here in SA it's a whole other story with regards to what we have to stand on with the Warranty red tape. Please keep us updated.

Hi @Jemdepending on where you are based @BritishRacingGreencan help you. He has carried out, out of warranty repairs on fuses on Pylontech batteries. So as I write this so many people said this type of thing only happens to cheaper inverters like Voltronics and Axpert...Now we have Blue power doing the same. Pylontech products are increasing showing up with these issues. Depends a lot on what has happened with your batteries. 1st prize is always to get the fix done within the warranty period. However, I have seen Segen Solar refuse quite a few ppl based on this. They will probably insist on collection of the log files to rule out foul play & then make a judgement off of that. Best of luck & sorry to hear of this event. They have also dropped their normal warranty from 10yrs as previously was the case.