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.

First big-size offshore grid connection completed


  • BorWin2 with 800 megawatts (MW) supports the energy transition
  • Supply capacity corresponds to around one million private households

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Cross-border ‘electricity highways’ and domestic production capacity ensure sufficient supply of electricity in the Netherlands


TenneT’s interconnectors contribute to security of electricity supplies

  • Growth in cross-border electricity transmission capacity between the...

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


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Kick-off for MIGRATE: International project investigates requirements for Europe's future electricity grid


The challenge posed by renewables – How much power electronics can the grid cope with?

  • The European Union is providing roughly 17 million euros of...

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Standard & Poor's changed equity content of TenneT's hybrid capital, A- credit rating re-confirmed


In a statement published yesterday, Standard & Poor’s Ratings Services (“S&Ps”) announced that it has revised the equity content from ‘Intermediate’...

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TenneT purchases 150 kV electricity grid in Utrecht province from Stedin


Arnhem/Rotterdam, The Netherlands, 17 November 2015 – Following the transfer of ownership of Stedin’s 150 kV electricity grid in South Holland...

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