Publication under the Energy Industry Act (Energiewirtschaftsgesetz - EnWG)

The act's aim is, among other things, to use regulated grid access to ensure effective competition among electricity providers and guarantee the long-term, high-performing and reliable operation of energy supply grids.

In this respect we fulfil our disclosure obligations.


  • Regulation management


Grid connection

Publications on the grid connection, if not included on this page, can be found on the "Connecting" page.

Grid access

Publications on grid access, if not included on this page, can be found on the "Grid use" page.

Base supplier for Berlin's distribution grid

On 1 July 2018, we established Vattenfall Europe Sales GmbH as a base supplier on Berlin's distribution grid under Section 36 (2) EnWG (Energy Industry Act).

Last update June 2018

24h Störungsmanagement Strom (Electricity Fault Management)

Störungsmanagement Strom is the central resource for reporting faults in the energy supply and troubleshooting.

to 24h fault management

Equal treatment report

The Energy Industry Act provides for the separation of the network area from the market areas according to §§ 6 ff. EnWG. In order to monitor the unbundling regulations, an equal treatment report must be published annually, in accordance with Section 7a (5) sentence 3 EnWG, on the measures taken to ensure the non-discriminatory exercise of the network business.

The equal treatment report of 2019 is available on the Vattenfall GmbH website.

Grid expansion plan under Section 14 para. 1b EnWG

Berlin's 110 kV distribution network is undergoing a high level of replacement and expansion of grid nodes and improvements to the condition of the grid, in response to the increased rate of approaching change in the generation situation and demands on the grid.

On the grid, we can see an increase in decentralised generation in the LV and MV areas and in the growth of the city. In the 110 kV grid, the changes are primarily due to additions and reductions in plant performance in various areas of the grid. The work to expand and reinforce the grid reflects the need for the provision of a safe supply even during periods of restructuring.

Although electricity consumption in the city is stagnating, the number of new connections and changes to the grid is constantly rising. It therefore appears that we can expect an increase in the load for the city. In addition, it is difficult to evaluate changes due to the impact of power-to-heat and additional e-mobility.

The various new-build substations are helping to replace old technology, as well as providing increasing automation.

Currently there are no grid bottlenecks in the high-voltage parts of the Berlin electricity grid.

Overview map of the high-voltage grid (PDF 6,4 MB)
EnWG Section 14 para.1b - Grid expansion projects (PDF 429 kB)

Last update August 2020

All downloads are available in German language only.