An 11 kW wallbox only requires registration . Should the However, if the total output of a wallbox is 22 kW, the wallbox requires approval. By the way, this also applies if you have a DUO-CHARGE wallbox Have a wallbox with two charging points. If each charging point has 11 kW, that is Wallbox requires approval because the total output is then 22 kW. The legal basis for this is regulated in Section 19 of the Low Voltage Connection Ordinance (NAV). The regulation stipulates that since March 21, 2019, private operators have also been obliged to register their wallbox with the responsible network operator.