WannabeSolarSparky

Those panels will work perfectly on that inverter. You can run them 4 in series X 2 strings i.e. 4 panels in series onto each mppt input at the inverter. When budget allows add at least another 4 panels, 2 onto each string to bring you closer to the optimal voltages. Or if your roof space allows it then put all 8 onto 1 mppt that should be pretty much close to the sweet spot for efficiency. Then you have the other mppt to add more panels later.

!st answer everyone is going to give is a question... Is the CT coil 100% correctly installed, wired and oriented? 99% or reading errors or discrepancies on these inverters are usually related to the CT coil not being correctly installed.

My health and quality of life has generally improved drastically since going on to full solar with a decent inverter Headaches have also totally gone away as I no longer have stress due to darkness syndrome. I use a cellphone ( like almost all of us ) so seriously not concerned about any extra emf radiation from my solar setup, I am sure my phone pumps enough crap into my brain already.

You need to be registered 1st to see prices.

No, you have to be a registered installer to buy. But it is a good place to use to compare prices to make sure your installer is not ripping you off..

Few days of full cloud so not much solar charging going on as I am mostly disconnected from the grid. Did a full test yesterday, battery bank full charged to 100% started using battery power at about 16:30, ran through the night to this morning 8:22 when it started charging again. The bank delivered 192AH down to 47.7v After 3 years continuous use that is pretty dam good capacity in my books Note this is not a scientific test just an observation.

Now look at this 100kW grid-tie system Makes my sunsynk grid-tie system look tiny in comparison

Simple answer is, no, you will not be limited when there is no load-shedding

Normal grid tie does not make much sense in SA at the moment, you are right. Like the Solis pure grid-tie type inverters, as we do not have a decent stable day-time power supply. There are in SA and here on the forum some clever folk who use solis type grid-tie inverters in very creative ways and I have not heard any complaints yet. BUT!! - A hybrid grid-tie to me makes perfect sense no matter how small it is as you can push your excess power to your non-essentials seamlessly. That's why the sunsynk/deye inverters are so popular every bit of power you can harness counts in my books. Remember not everyone are high power users so there is always room for these smaller type hybrid grid-tie inverters. As soon as I get my hands on one of these I will put it through it's paces and then see if it is worth the sub 10k price for a low usage scenario.

spec sheet 20191018111800955.pdf

Looks discontinued, so maybe a dodgy website here in SA or they are dumping stock to SA

found one on china website with specs https://www.aliexpress.com/item/1005001714390817.html No mention of anti-islanding protection, not too much of an issue for DIY or small budget installs as anti-islanding protection can easily be added.

That looks like an interesting little budget grid-tie inverter. I must maybe try getting one and testing it out for budget installs. That price looks pretty good for a small grid-tie system.

Simple - don't trust all the "specials" you see on google shopping, that's where most people get caught. Always compare to legit websites and if the prices are a lot lower than on those legit websites then run away fast. Legit websites to look at: powerforum store obviously Herholdts getgreen.energy ( previously DIYGEEK ) Segen - have to be registered to see prices gcsolar sustainable - bit pricey but a good reference point rubicon the sun pays So if you find a good deal 1st check legit sources to make sure the pricing is in the correct range, then if still not sure come along and ask for references Also if you are using an installer make sure their markups are not stupid crazy, they should also still be in a reasonable range compared to the main suppliers. Remember the installers get better installer pricing so their markups should end in a similar range to the retail prices available publicly.

That is why so many users have their own measuring systems In the world of measuring there are a gazillion combinations of accuracies, all depending on the underlying electronics and how they are implemented. Best is to find for yourself which ones you would like to trust over time, else you gonna go mad trying to find a perfect measuring solution

I helped my father in law do a similar exercise at their retirement village. Turned out the developers had kept the rights to ALL the roof space for their own use. Maybe 1st find out if your village has a similar clause else you may just be wasting your time.

Fox ESS is one of the largest renewable energy companies in the world Thier Head Office of the Fox ESS Distributers in SA is in Cape Town, they should be able to hook you up with their installers in Durban. https://msolarpower.co.za/

That IS BY FAR the coolest looking ground mount structures I have seen. Need that for the Cape South Easter

Sonoff have some great switches ideal for this sort of use. https://www.sonoffafrica.co.za/

For a system this large and Bang for buck and simpler installation I would personally go for a high voltage system: FoxESS 10.5kW IP65 High Voltage x2 ( Will handle those aircons like they not even there ) Fox ECS HV ECM2800, 16.59kWh ( 1x Master 5x Slave ) X2 And bonus is you can have your panels wired to 8 separate strings so can use all available roof orientations

Just means you will have plenty/good power in winter months. In summer you will have some clipping, but that's ok. If it's already installed and working as expected, then you should be ok

Just be carefull not safe yto do this sort of hack. I am not sure if the growatt will have that same hack working. Else just refer to 1st suggestion and setup a small backup AC source to provide the "fake grid" to allow the inverter to generate. Be 100% sure to disconnect from the real grid 1st. Use a decent transfer switch

This image is not for the inverter your post title says you are using Growatt MIN TL XH without backup box so then you must refer to the manual for that inverter. I can find the MIN 2500-6000 model cannot find the one you are referring to sun2000 https://www.pvo-int.com/wp-content/uploads/2022/03/Manual-Growatt-MIN-2500-6000TL-XH.pdf

You would then need to check the install manual to see which pins give the island signal. That would be from the communications port. Your guess about the port 1 & 2 seems to be close, but if you check the manual it seems you would use one of the relay ports. And then set the function correctly in the settings panel.

What is your backup AC source? Without an AC source that inverter will not produce AC as it is a grid tie inverter. If you have a backup AC source then you could simply use a manual transfer switch or an automated transfer switch to change over to the backup AC source. If automated transfer switch then the loss of grid ac would be the islanding signal.