Just been thinking through our PV installation - too tired to visit site so thought I would exercise the grey cells instead.
The context: 50% of our PV array is on the garden room and connected to its distribution board, as I have mentioned elsewhere, this is a 50m run of 16mm cable from the incomer and that is itself 15m of 25mm cable from the house distribution board. The issue: I think I get the basic physics but I cannot seem to find out much about what range of matching the average inverter (String or otherwise) can manage as the impedance in these two cables and the loads on them must have an effect on the challenges for the inverter in supplying power (current etc) across this network. Anybody got any insights - including, don't be daft it just works!