The existing grids were built in accordance with the centralized energy system of the four main energy companies in Germany, namely, as of 2016, E.ON, EnBW, RWE, and Vattenfall.
The existing grids were built in accordance with the centralized energy system of the four main energy companies in Germany as of 2016, E.ON, EnBW, RWE, and Vattenfall. This was namely.