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.

TenneT successfully issues EUR 1 bn Green Bond


  • Market shows keen interest: Green Bond two times oversubscribed
  • TenneT first Dutch non-financial company with EURO Green Bonds issue
  • Programme could...

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Energy consumption, production, imports and exports February 2015


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TenneT's fourth major offshore wind power connection for this year in operation


  • 3,500 megawatts (MW) of offshore transmission capacity achieved in the German sector of the North Sea
  • With HelWin2 (690 MW) TenneT has completed the...

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Energy consumption, production, imports and exports May 2015


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First REGIONAL generation adequacy assessment report published


  • A new methodology developed by the Transmission System Operators in the Pentalateral Energy Forum makes it possible to better assess generation...

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TenneT starts online stakeholder consultation process for offshore electricity grid


  • Collaboration on development of offshore grid
  • Stakeholder consultation website www.tennet.eu/nl/offshore-grid-nl.html goes live
  • Monthly expert...

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