Flarkit

Thanks.
The guys from Cudub did a great job and sorted me out in a short time.  By day 2 I'd already missed a midday load-shedding slot completely. Really wish I'd woken up and had this done ages ago

No plans, it's a "temporary structure" -- a garden shed --! You can buy similar sheds from various outlets made from the same materials but will cost you 5 times more. They even build housing this way.
Here's a pic during construction. Once I do the solar installation I will send more.

 

I built this for about R3200 materials only. Treated timber frame and 10mm Fibrecrete boards.
 

The OP doesn't mind hosting an informative discussion, at all 😆

The OP doesn't mind hosting an informative discussion, at all 😆

EDIT: Apologies to OP for the thread hijack! For some reason I thought I was on another (my own) thread. 
 
No need to apologise for anything! Thanks for your informative and helpful reply. Yes, I saw the 3-phase version, and was focusing on the single-phase standalone version, which most online retailers advertise as "for up to 5KW inverters" while sustainable (I think) has it listed as suitable "for 5 and 8KW". I understand from @Kalahari Meerkat in the below post that I can use a contactor inside the AC box for this - may be a slightly neater and simpler alternative. 
 
 
Yes, I'm referring to those - I bought 3 pairs for my 2 batteries (thinking was 2 pairs for the battery-to-battery connection, and one half pair at either side of the bank (i.e. Battery 1 POS and battery 2 NEG return to close the parallel loop). These latter connections would be 75mm2 and presumably wont fit into these snap-on connectors. I guess I will let the electrician figure out the busbar way of using 75mm cables between battery bank and inverter. Presumably a pair of 75mm cables will fit through the gland at the inverter. Thanks again for your explanation @Steve87

EDIT: Apologies to OP for the thread hijack! For some reason I thought I was on another (my own) thread. 

The SANS (South African National Standards) 10142-1 regulations dictate the electrical installation requirements in South Africa. According to these regulations, electrical panels must be connected to an earth electrode system that is separate from the earth electrode system used for the main earthing of the building. This separate earth electrode system must consist of one or more electrodes, such as ground spikes, that are driven into the ground.
Regarding your question, if your home's earth is connected to the utility earth and a ground spike, you can use this existing ground spike to connect the electrical panel. However, it's always advisable to consult with a qualified electrician to ensure that the installation meets the relevant safety regulations and standards.

My apologies @Kalahari Cruiserbeen a very busy couple of days in the installation Scape.  Massive logistic problems especially with Solar panels. Trucks getting hijacked etc on their way to the Highveld from Durbs. Just a mess. Also no stock expected until End of March. Makes for a very tricky installation business 🤣 We shall overcome!! 
Sorry back to your question. This widely used Earth Neutral Bridge is suitable for both 5kW & 8kW. I'm told it needs to handle the Earth current which would be smaller in nature hence it would be workable. Do not purchase the 12kW version, it is essentially the same thing except 3 Lives. You have 2 options on that bridge. Use the Lives from the Inverter or the ATS240 as per Sunsynk. Both are options but if you use the ATS240 you need to tick the Signal Island mode on the inverter settings. 
on your 2nd question I cant quite make out your question. Let me try to explain though. So the batteries have the special snap on connectors. The actual inverter has the Big M10 or 8 I can't remember terminal screw connector. So how do you get to 50mm2. First of all 2 X 50mm2 cables fit into the gland provided on the inverter side. It's very large & it fits. 
The 5kW battery is rated for 35mm2 or even 25mm2 cables. 2 of them paired into a Busbar of a keto or other busbar will enable 50mm2 normal cables to fit. I am also not sure if 50mm2 special snap on cables are available. I prefer to carry out the above process to get the 50mm2 cables connected. 

Hi Gents,
There is a way to get this to work. You can connect the 2 X 25mm into a Keto DC fuse connector. 2 lugs can be connected onto a single terminal & then from the Inverter output of the Keto into the Inverter at 50mm cables with lugs. 
@Flarkit
I cannot see clearly the pic if that is 50mm2 cable, the inverter open bottom box will make for a better view. All I can tell you & the entire community is that in this game what is quoted & what is supplied can be 2 different things. 
I have seen some 545W panels actually turn out to be 460W panels. I have seen installers specify 50mm2 cable & use 35mm2 cable. It's for this reason I just say be cautious & I don't take joy in pointing these things out because it's not nice to see ppls hard earned cash going into deception. 
If you have seen thro my eyes & especially the Neutral to Earth Bonding bridge this is very important. The Sunsynk is NRS approved in its entirety. With its manual of operations & installation manual. That ATS240 Island signal mode was approved by the NRS so I very much doubt that the Neutral to Earth bond must be made permanent. If there was a deficiency in the technical manual the NRS would have demanded an amendment.
Bear in mind this that we are talking about is whether an Earth leakage will operate when the Grid is lost. I'm not talking about the push to test I'm talking about using a plug tester. & It's not my opinion it's fact without a Neutral to Earth bridge you definitely don't have a valid CoC & this machine in its current form without that E to N Bridge is not compliant with anything NRS related or safety related. 
I am all for the PV green card & the AREP P4 certificates etc but a 2 week course does not make you a professional installer. It's in depth knowledge & in depth underlying study of not just text, but why do we do something? Not just following aimlessly. 
You spending a lot of money here Ladies & Gents get it done properly. You are paying for this, it's not a favour the installer is doing for you. How much is the Earth to Neutral Bridge +-R1,300 excl VAT. It's really not a deal breaker but it's specified in the manual & for good reason. Their CEO has stressed it's importance in his videos pay attention, it's not a waste of time. Don't do it for the CoC do it because it's your money & your households safety. 

When I had a loan battery, they also used these brackets, however each bracket had 2 8mm rawl bolts. The ones they used on yours look suspiciously petite for batteries (might just be me though that thinks so).
You can see on the image that my batt was also done in the same way but seems to have had a little more support. Perhaps the guys misjudged the distance on your brackets?
Sorry, I don't mean to be a judgey A-Hole, just adding in my 2c to check the mounts for your batts so they don't potentially fall off the wall.
 

I hope it pays for you. I just think the penetration of PV systems is still very low when driving around. Based on this the sector should remain very busy for years. 

I think its pretty reasonable to assume that the inside of a garage can get to 50C+ in SA. 
Heck my garage is at least 10C warmer than anywhere else in the house and I have the same concerns about mounting batteries and an inverter in there. 

Very well spotted old chap. Eagles eyes you have there 🤠 On face value looks to not be present at all. I have heard of some guys using a contactor relay. However, as you have said in both cases it would be usually visible. 
More & more I see other installers work of the Sunsynk & Deye inverters I realise it's the biggest left out misunderstood part of the install. 

Yep, looks good, but where is the external E-N bonding? In the ac db box? 

I can only add my experience, I was very lucky to find an excellent installer who quoted me and installed my setup within 2 weeks of my request for a quote.
This week they're not replying to calls or Whatsapp messages and I hardly blame them, when seeing how many of my colleagues are trying to jump onto the solar wagon now.
Hang in there, it's worth using a well-regarding company with a proven record, rather than rushing out and using a fly-by-night operation

Initially I'd opted for a 5kW Sunsynk with a single 5kW Lithium battery and 3.6kW of panels, as a slightly more budget-friendly route. The plan was to expand the panels and batteries in a few months. Then I thought it would be prudent to get an 8kW inverter and the rest just tumbled in after.
A quote from Cudub Holdings for the 8kW inverter, 2 Freedom Won eTower batteries and 12 460W JA panels was competitive and the whole experience was great. Equipment delivered 2 days after accepting their quote, I paid the deposit the following morning and was called at 7h00 the morning after with an offer to install that same day due to a cancellation.
The installer from Cudub Holdings practically danced with joy seeing our single large north-facing roof:




 

I can only add my experience, I was very lucky to find an excellent installer who quoted me and installed my setup within 2 weeks of my request for a quote.
This week they're not replying to calls or Whatsapp messages and I hardly blame them, when seeing how many of my colleagues are trying to jump onto the solar wagon now.
Hang in there, it's worth using a well-regarding company with a proven record, rather than rushing out and using a fly-by-night operation

I can only add my experience, I was very lucky to find an excellent installer who quoted me and installed my setup within 2 weeks of my request for a quote.
This week they're not replying to calls or Whatsapp messages and I hardly blame them, when seeing how many of my colleagues are trying to jump onto the solar wagon now.
Hang in there, it's worth using a well-regarding company with a proven record, rather than rushing out and using a fly-by-night operation

I can only add my experience, I was very lucky to find an excellent installer who quoted me and installed my setup within 2 weeks of my request for a quote.
This week they're not replying to calls or Whatsapp messages and I hardly blame them, when seeing how many of my colleagues are trying to jump onto the solar wagon now.
Hang in there, it's worth using a well-regarding company with a proven record, rather than rushing out and using a fly-by-night operation

I can only add my experience, I was very lucky to find an excellent installer who quoted me and installed my setup within 2 weeks of my request for a quote.
This week they're not replying to calls or Whatsapp messages and I hardly blame them, when seeing how many of my colleagues are trying to jump onto the solar wagon now.
Hang in there, it's worth using a well-regarding company with a proven record, rather than rushing out and using a fly-by-night operation

Thank you very much for that. Times are busy but we get to everyone. We are also expanding staff very very soon. 
Sincerely
Jason

Thanks.
The guys from Cudub did a great job and sorted me out in a short time.  By day 2 I'd already missed a midday load-shedding slot completely. Really wish I'd woken up and had this done ages ago

The Powerforum store is a good start, and you'll receive excellent advice as well.
 

The Powerforum store is a good start, and you'll receive excellent advice as well.
 

Unless you have the technical knowledge and skills to do the install yourself, get installers to come in and prepare a quote. Make life easier for them by deciding what you want backed up, and by providing an accurate daily or monthly average consumption. Listen to them when they recommend certain brands of equipment. Inverters are not all the same, nor are batteries. And some combinations of inverter and battery work better than others. The installer, if they're any good, will also take care of any teething problems with the install and will issue a COC. Going forwards they will assist you if any warranty claims happen.

Your consumption is low, so you don't need a big ass system. BUT consider 10kwh of battery. My usage before conversion was 390 to 400 kwh per month - not far off yours. With 10kwh and a bit of self discipline we get right through the night on batteries, and I know that if our battery is fully charged at 16:00 ish, then I'm good until at least 8 the next morning (that includes heating water with a heat pump). The bigger battery gives you much more protection against long outages and in most cases (and surely yours) will do more than just get through a load shed, and can save you more money by storing more PV power for later use.

Your battery will usually be at its lowest early in the morning. This morning my battery got all the way to 55% SOC. So 4.5 kWh used overnight, and I still had the same available for use if there was an early morning load shed. With a 5kWh battery I'd be close to the edge, and if there was load shedding at 6 or even 8, and it wasn't a nice sunny day then I'd have challenges.