We required an EV charger and had already decided on a Myenergi Zappi due to already having a solar and home battery setup.

I knew where I wanted the charger and I also knew how I wanted the cables run so they would not be visible. I also knew that my existing consumer unit was full and to top it off the electric meter cupboard was full from the solar.
The obvious solution was to upgrade the existing consumer unit which also identified several horrors when removed.
Core7 did a a fantastic job, tidy, quick and great communications through out. The best part is that i now have a charger installed with no visible cables and an extremely tidy consumer unit with plenty of spare ways for future projects.