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


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.

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

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.

DNV-GL compares costs of offshore connection systems


In most European countries where offshore wind farms are constructed, the national grid operator, the TSO (Transmission System Operator), is...

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Subsea cable pull-in of NordLink beneath Büsum dike (Germany) successfully completed


  • TenneT is now starting on the successive laying of the underground cable section between Büsum Dike and the Wilster converter system (Germany)

  • The...

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XBID – 1st anniversary and announcement of 2nd Wave Go-Live


XBID, the Single Intraday Coupling (SIDC) solution, is one year old today! Since the successful go-live on June 12th/13th, 2018 over 16 million trades...

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TenneT goes green again: issues EUR 1.25 billion of green financing


  • Green bond investors put in orders of more than EUR 5 billion
  • Financing re-affirms TenneT’s commitment to social responsibility
  • Largest corporate green...

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TenneT tackles biodiversity at all its 462 high voltage substations


The grid operator TenneT will be helping to promote biodiversity at all its 462 high voltage substations in the Netherlands and Germany. The plan...

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Blockchain pilot reveals potential of decentralised home storage systems for tomorrow’s energy infrastructure


  • TenneT and sonnen complete a blockchain project that is unique in the world
  • The pilot project shows how decentralized home storage systems can be...

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