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 23,000 kilometres of high-voltage lines, we cross borders and connect countries.

Explore our grid

Grid maps

Maps of our onshore and offshore high-voltage grid.

To grid maps
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 41 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

Emden-Conneforde

New, high-capacity lines are required to bring the energy produced in Lower Saxony and Schleswig-Holstein to the consumers. The 220 kV Emden-Conneforde line will therefore be replaced by a 380 kV…

Read more

Conneforde-Cloppenburg-Merzen

TenneT is actively realizing the energy transition at the local level. Together with the transmission system operator Amprion, we are expanding the grid between Conneforde (Ammerland district) and…

Read more

Altenfeld-Redwitz

An important milestone was achieved with the partial commissioning of the 380 kV Altenfeld-Redwitz line in December 2015! See the for detailed information on Altenfeld-Redwitz Offshore Projects…

Read more

SuedLink

The wind power line. Germany has set itself a very ambitious objective: at least 80% of the power supply should be fed by renewable energies by 2050. The power grids have to be upgraded in order to…

Read more

Ganderkesee - St. Hülfe

02/07/2020 01:56:26 PM Projects Onshore project German project

380 kV line between the Ganderkesee and St. Hülfe substations near Diepholz See the for detailed information on Ganderkesee - St. Hülfe More information (copy 1)

Read more