Our daily average pre the batteries was from May to Oct 4 kWh then Nov 9, Dec 10, Jan 13, Feb 8 & Mar 6.

The average daily output from the array is 11.25 but obviously in winter bad days can be 0.2 kWh.

So I'm hoping that we will easily be off grid May- Oct.

On that basis our pack of 2 batteries is 4.2 kWh in total . But we can expand it by another 3 batteries at I guess £1k a pop.
Glad to see yours is working well.

JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger