Finally

New PV units fully connected and my wallbox added. It's only 11kWh but I got them to fit 22kWh wiring - never know what the future might hold. I could apply to be allowed to pull 22kWh from the grid, but no advantage at the moment as PV would never have that amount of surplus.

11kWh allows me to charge from 0%-100% in 6 hours, again something one is never likely to do. The new electricity tariffs give one 5 hours cheap night charging,  more than enough in times when sun not shining & winter. Sadly in Germany, we can't get the fabulous £0.07kWh price one gets in the UK. Minimum is €0.19.