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.

Dutch grid operators launch GOPACS: a smart solution to reduce congestion in the electricity grid


Grid operators TenneT, Stedin, Liander, Enexis  Groep and Westland Infra are working together on GOPACS. This new platform is now launched. It is an...

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TenneT: continuing with Blockchain after successful pilots


  • Blockchain enables large-scale access to decentralised flexibility
  • TenneT to scale up blockchain projects
  • Access to the energy market for individuals...

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TenneT successfully closes a EUR 500 million Green US Private Placement


  • TenneT first Dutch Green USPP issuer
  • Market showed keen interest with an order book of almost EUR 1bn
  • Further diversification of TenneT's investor base...

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Vattenfall and TenneT have signed agreements for the Hollandse Kust Zuid offshore grid connection


Grid operator TenneT and wind farm developer Vattenfall have signed agreements for the offshore grid connection for the Hollandse Kust Zuid I and II...

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TenneT increases offshore capacities to 6,232 megawatts


  • Expansion target of the federal government for 2020 nearly entirely achieved
  • 2018 North Sea “wind harvest” exceeds previous year by roughly five...

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Announcement publication integrated annual report and annual results for 2018


On Thursday, February 21rd, 2019, TenneT Holding BV will publish its integrated annual report and annual results for the year 2018. 

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