Our key tasks

We are primarily tasked with providing power transmission services, system services and facilitating the energy market. Our core tasks follow from our appointment as grid operator under the Dutch 'Elektriciteitswet' (E-wet) and the German 'Energiewirtschaftsgesetz' (EnWG).

Explore our key tasks

Innovation

TenneT presents Hub and Spoke concept for large scale wind energy on the North Sea.

Read more
Our grid

TenneT manages the high-voltage grid in the Netherlands and large parts of Germany. TenneT transmits electricity at 110,000 volts (110 kV) and higher. With around 23,500 kilometres of high-voltage lines, we cross borders and connect countries.

Explore our grid

Offshore Outlook 2050

Already by 2030, the originally planned capacity of 15 gigawatts of offshore wind energy will increase to 20 GW.

To Offshore Outlook 2050
Electricity market

The energy sector is developing rapidly. The process of European market integration began some years ago. Its purpose is to create a single European market that enables market parties to trade gas and electricity across national borders easily and efficiently.

Explore the electricity market

Transparency data

We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E. 

To transparency pages
E-Insights

Our vision is to be one of the most transparent Transmission System Operators (TSO) in Europe and thereby creating value for society. In this Energy Insights section we present selected energy related topics and show data, information and valuable insights. 

E-Insights

E-Insights

Facts & figures related to TenneT facilitating the market can be found here.

Read more
Company

TenneT is a leading European electricity transmission system operator (TSO), with activities in the Netherlands and in Germany. We strive to ensure a reliable and uninterrupted supply of electricity in our high-voltage grid for some 42 million people.

Explore our company

We are TenneT

Meet us

Onshore projects Germany

Overview of our german onshore projects.

Hamburg/Nord-Dollern

The existing line between the transformer substations of Hamburg/Nord in Schleswig-Holstein and Dollern in Lower Saxony is being replaced and expanded. Increasing quantities of wind energy are…

Read more

Halbemond-Emden/Ost

Currently, preparations for the planning and approval process are paused until the alternatives assessment in the NEP has been completed. If you have any questions, please contact the responsible…

Read more

Wahle-Mecklar

The increasing amount of renewable energy fed into the grid in Schleswig-Holstein has made it necessary to expand the existing grid structure. The district of Schleswig-Flensburg numbers among the…

Read more

Wilhelmshaven-Conneforde

The new construction of the 380 kV extra high voltage line serves for the expansion of the transmission grid between the new transformer substation in the Wilhelmshaven district of Fedderwarden and…

Read more

Dörpen West - Niederrhein

To bring the increasing quantities of energy from offshore and onshore wind farms from the north to the south, a new power line roughly 165 kilometres in length is being built from the Dörpen West…

Read more

Umspannwerk Wilster West

An important component in this is the replacement construction of 380 kV substation at Wilster West, because the transformer substation acts as a hub for power transport from north to south. Offshore…

Read more