A wallbox in an apartment garage needs the owners' consent, the right connection option and load management so the building does not overload. A seven-step procedure for the committee, costs and subsidies.

PV surplus sells for EUR 0.04 to 0.08, grid electricity costs EUR 0.16 to 0.28. A smart wallbox charges the surplus into the car and saves hundreds of euros a year. How it works and what you need.