u/Intelligent_Rate_683

Hi, I plan to have solar + battery + EV charger in the garage at the back of the garden 70m from the consumer unit.

To save a few quid I’d like to install the cable myself (not connectin just laying it down).

Would an 11 square cable be the correct size? Considering the load
The cable would go through the house, then a thick stone wall and then outside along the garden wall. Do I need to place the cable into a specific tube or I leave it out?

Thanks for the help