Dar here, from kildare Ireland, running small 100 watt panel, MPPT 20amp, with 2kw of cells Li ion, and 2kw in 4 car batteries. Will be getting 400w of solar soon and will need to finish the battery packs for that. System is mainly used as backup for freezers. Will be moving in 2022 and will get 10kw solar and 30kw of storage. New car will be electric in 2022.