TonyH

https://ecasa.co.za/technical/neutral-earth-bonding-clarified/   Here are the clear regulations. A bonding relay is required in islanding mode. The Neutral output from the inverter is pulled down to earth through the relay to an earth spike. People who say that the relay can fail forget that the eskom earth cable can be stolen or disconnected for some reason. The earth bond installation at your inverter must be according to regulations that is the installers responsibility. The Eskom earth is eskom's responsibility. 

https://ecasa.co.za/technical/neutral-earth-bonding-clarified/   Here are the clear regulations. A bonding relay is required in islanding mode. The Neutral output from the inverter is pulled down to earth through the relay to an earth spike. People who say that the relay can fail forget that the eskom earth cable can be stolen or disconnected for some reason. The earth bond installation at your inverter must be according to regulations that is the installers responsibility. The Eskom earth is eskom's responsibility. 

https://ecasa.co.za/technical/neutral-earth-bonding-clarified/   Here are the clear regulations. A bonding relay is required in islanding mode. The Neutral output from the inverter is pulled down to earth through the relay to an earth spike. People who say that the relay can fail forget that the eskom earth cable can be stolen or disconnected for some reason. The earth bond installation at your inverter must be according to regulations that is the installers responsibility. The Eskom earth is eskom's responsibility. 

Here is my As built with legal certification

Here is a solution:

This is my installation. It is running like a dream. Haven't used the grid since early last night.
Battery was only at 50% this morning before the sun took charge. Geyser just kicked on(Timer) and is using PV and Battery to warm up. Simply lovely.
Just want to thank @Steve87 and his team for an amazing experience. It was honestly effortless. 10/10 would recommend!

Yes sir. Of course apart from the bonding of neutral to earth in island mode, the grid neutral and inverter output neutral  must also be disconnected, but this is autmatically done by the inverter itself. 

South African regulations forbid connecting the Inverter output neutral to the earth permanently. No power generator may connect the output neutral to ESKOM neutral permanently. Some inverters like Sunsynk have terminals that can drive a relay when on islanding mode. The relay then connects the Inverter output neutral to an earth spike and house earth. Other inverters connect the inverter output neutral to earth internally. The manuals should provide that information.
If an inverter doesn't have terminals to drive a relay or internal neutral bonding then a relay can be installed as shown below.

Hi, here is my as build

Hi, here is my as build

Hi, here is my as build

Hi, here is my as build

Yes I heat up my geyser exclusively on the AUX output. I have setup the Aux as an output. When the battery is 100% SOC the AUX switches on and at 96% SOC it switches off.

Hi, if you choose a Sunsynk inverter there is a great way to save on your geyser power by utilising the AUX as an output. When the batteries are 100% SOC the AUX switches on and heats the geyser until 96% SOC (a selection). Of course one needs a RCD to protect anyone getting electrocuted at the geyser. If there is a cloudy day it is a simple ticking of the Aux under settings to force the Grid to heat the geyser. This is useful on both cloudy days and when one has a house full of guests using hot water. My electrical account for usage varies between R24.00 to R75.00. The R75.00 was during 4 days of massive rain and flooding in KZN with visitors in the house. (This is usage and has to include a basic charge of R294.00)
10 x 390W JA East West configuration
8KV Sunsynk Inverter
2x5.5KV Hubble batteries

Hi, the CT is critical and must be installed correctly. Untick solar export and set "Grid Trickle Feed" to 20W. This prevents exporting. If you are going to use the Aux later, set up for Aux and untick "On grid always on". This setting allows one to use the grid through the Aux when solar power is low.
The way the table is set up the battery SOC will never go below 50%. The way I have set up and tested my table is the grid supplies whenever the battery is below the SOC values I have set. 
8kW Sunsynk Inverter
10 390W panels. 5 East and 5 West.
2 x Hubble AM2 batteries

It is very important that you install the CT. If you extend the CT cable make sure that you twist them in the same direction as the original wire. If you don't twist the cables you will get interference which may affect your CT readings. Make sure that the arrow on the CT points to the inverter. 

It is very important that you install the CT. If you extend the CT cable make sure that you twist them in the same direction as the original wire. If you don't twist the cables you will get interference which may affect your CT readings. Make sure that the arrow on the CT points to the inverter. 

This was drawn with Microsoft paint. It is quite laborious but I had the time.

Yes I heat up my geyser exclusively on the AUX output. I have setup the Aux as an output. When the battery is 100% SOC the AUX switches on and at 96% SOC it switches off.

Hello Cassie, here are the two pics for the above.

Here is a diagram that has passed COC

Thanks Tony, 
I came across this recommendation on the forum, and seems similar to your setup with the Inverter Grid connected before the Main E/L, so I'm going to give this a go. 
My house is old, and only has a combination OL-EL breaker wich is a 20 mA, so I will replace this with a 60 Amp OL Breaker, and a separate EL. 
Thanks for your response. 

Hi Colin, the panels must be earthed to protect against lightning and a faulty panel. My panels are earthed. The Inverter input should be after the feeding EL from your main panel as yours is. For the EL to trip because of rain, water has to connect the earth to the live or neutral. That is unlikely due to the earth spike. Is your earth spike linked to the earth of your common earth for the inverter and house earth (Grid earth)? The earth spike should also be connected to the output of the ATS 240 relay to pull the Inverter output neutral to earth when the Inverter is on Island mode. This prevents a floating voltage on your neutral which can be 80VAC or more.

NRS 097-2-1: 2017 Table B.3.
Earthing comments on the document mentions “earth electrode desired” 
In my opinion it is important to have the earth spike installed especially when it comes to lightning protection. Having that earth spike with surge protection devices might save you a couple of thousand of💲when the lightning choose your installation.

Here is my As built with legal certification