Hi @Chris2
Thanks for dropping a line, and words of support.
I believe you’re on to the right Enphase model with the Maxeon 2 (IQ7X). These are also top quality products as I’m sure you have read.
The next stage is to find an installer that you do trust, and that might mean speaking with 2-3 different ones, and reading a bunch of reviews. They will help guide you through the connection process.
It depends where you are on the south coast as to which distributor you are with (Essential Energy or Endeavour I think). I don’t know their rules currently, I have worked with Essential in the past and I believe it was generally a 5kW limit based on panel production not inverter output, but that was over 4 years ago. Also you needed to lodge an approval and wait for response before even 5kW was a sure thing. The installer needs to get that approval for you.
As for notifying your electricity retailer, I think if going solar you really want to have a look around the market and see what your best deals are.
Good luck Chris and please keep us informed as to how you are getting on.
Cheers
Marty