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 23,000 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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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 41 million people.

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We are TenneT

Meet us


All press releases and updates.

Green light for important electricity connection between Norway and Germany


  • Partners TenneT, Statnett, and KfW take final investment decision for NordLink, the first high-capacity power cable between Norway and Germany
  • First...

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TenneT makes large grid investments to secure electricity supply while realising solid half-yearly results


  • TenneT invests EUR 1,196 million in Dutch and German high-voltage grid in first six months of 2015, to secure the uninterrupted supply of electricity...

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2000 megawatts (MW) of offshore transmission capacity real-ised in the German North Sea


  • With HelWin1 (576 MW) TenneT realises second large-category off-shore grid connection
  • Nearly one third of offshore expansion targets fulfilled

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Monthly figures (rolling annual total in GWh) for July 2015


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TenneT to undertake demonstration project for innovative ‘super cable’


  • Superconducting power cable represents world first for European high-voltage grid
  • Cable may be suitable for integration of high-voltage infrastructure...

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Invitation for the supply of control power (R2) for the first quarter of 2016


TenneT TSO B.V. intends to launch the process for contracting control reserve (R2) for the first quarter of 2016. A total of 340 MW control power...

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