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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Innovation

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 over 22,500 kilometres of high-voltage lines, we cross borders and connect countries.

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Grid maps

Maps of our onshore and offshore high-voltage grid.

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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. 

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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.

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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.

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We are TenneT

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BorWin2

Grid connection of the great class

Facts

Connection

  • 200 km long and 800 MW capacity
  • 75 km onshore cable
  • 125 km offshore cable

Grid connection point

  • converter station Diele

Status of project

  • online since January 2015

About the project

With an output of 800 megawatts (MW), BorWin2 together with HelWin1 (576 MW) is the first large-scale offshore connection that TenneT has implemented and which has enabled more than one offshore wind farm to be connected to the power grid for the first time. Since January 2015, the 147 wind turbines of the two offshore wind farms Global Tech I and Veja Mate have been feeding large quantities of clean wind energy into the German power grid via BorWin2.

The distance between BorWin beta, the offshore platform in the BorWin2 grid connection project, and the  land is 110 kilometers. This makes BorWin beta the offshore converter platform furthest out at sea. The network connection is 200 kilometers long. To ensure that the electricity generated at sea can be transmitted efficiently, TenneT uses high-voltage direct current (HVDC) transmission at BorWin2. With this technology, large quantities of electricity can be transported over long distances with low losses. Electricity from the North Sea is transported to the mainland via a 125-kilometer submarine cable. The 75-kilometer-long country road runs from the landing point Hilgenriedersiel to the network connection point Diele. The land route for BorWin2 was executed parallel to the route for the BorWin1 project. This bundling has made it possible to limit interference with nature and the environment.

Cornelia Junge

Press Referent - Project Communication Offshore

0049 (0)5132 89-2357