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.

Deep Dig-It Trencher buries cables more than 5 metres below the seabed to connect offshore wind farms


Rotterdam, 6 March 2020 - TenneT is building the Hollandse Kust (South) offshore grid to the north of the Maasvlakte, to connect new wind farms. Four...

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Gasunie and TenneT: Climate goals can only be achieved with an integrated European energy system


In order to successfully promote the energy transition and achieve climate targets, electricity and gas grids must be more closely interlinked by...

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Announcement publication integrated annual report and annual results for 2019


On Thursday, March 12th, 2020, TenneT Holding BV will publish its integrated annual report and annual results for the year 2019.

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European cooperation vital for security of supply ater 2025


TenneT regards Northwest European cooperation on security of electricity supply as a vital condition for addressing uncertainty after 2025. On behalf...

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TenneT increases offshore wind energy connection capacity to 7,132 megawatts


  • Expansion target of the federal government for 2020 already more than achieved
  • The transmission capacity will increase to almost 10,000 megawatts by...

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Ocean Renewable Energy Action Coalition Launches to Accelerate Global Offshore Wind Capacity


An international Ocean Renewable Energy Action Coalition has been formed to advance sustainable deployment of ocean-based renewable energy and ...

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