In most cases, it is not necessary to have a high-power supply for charging an electric car via a charging station. Most home charging stations can be connected to a standard 230V/16A outlet, similar to a regular power socket.

Most home charging stations have a charging capacity between 3.7 kW and 7.4 kW, which is suitable for charging an electric car overnight or for several hours. These charging stations can be connected to an existing electrical connection in the house, provided it has sufficient capacity.

However, if you want to install a charging station with higher power capacity, such as a station with 11 kW or more, you may need a three-phase connection, also known as high-power supply. Three-phase connections have a higher current capacity and can offer faster charging times.

It is important to check which connection and capacity you have available in your meter box before purchasing a charging station. An electrician can assess the electrical installation in your home and determine whether a standard single-phase connection is sufficient or if a three-phase connection is required. They can also help with upgrading the electrical connection if needed.

It is advisable to seek advice from a professional installer or a specialized company that installs charging stations to make the right choice based on your specific situation and needs.