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).

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

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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.

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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.

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Transparency data

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

To transparency pages

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. 



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

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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.

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We are TenneT

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About the project

Fewer CO2 emissions, renewable energies instead of nuclear energy or coal-fired power and an innovative, efficient electricity grid - the Federal Government in Germany has set itself ambitious goals for the implementation of the energy transition. Grid expansion plays a particularly decisive role in the success of the energy transition. Only if it is implemented quickly will we achieve the common climate goals.

The planned direct current project B Corridor is intended to significantly relieve the existing and future alternating current grid in Germany from 2030 and transport wind power from sea and land from Schleswig-Holstein and Lower Saxony to North Rhine-Westphalia.

The B corridor consists of two direct current connections with 2 gigawatts capacity each: Heide/West - Polsum and Wilhelmshaven 2 - Hamm region. With 4 gigawatts, the demand of around ten million households can be covered. TenneT and Amprion are jointly planning a total of almost 700 kilometres of extra-high voltage lines. As a rule, direct current lines are built as underground cables. Converters are needed at the start and end points to connect to the existing and future AC grid.

More information

See the

German language page

for detailed information

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