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.

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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First cable to connect wind farms at sea Borssele reaches coast


TenneT has laid the first sea cable to connect the Alpha platform to the transformer substation in Borssele. In the morning of Friday 12...

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Transmission system operators submit second draft of Grid Development Plan 2030, Version 2019


  • Comments from consultation have been taken into consideration for grid development plan
  • Sensitivity for scenario “B 2035 – coal phase-out” confirms...

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Recognition for NordLink


Renowned international award for innovative public relations work by TenneT goes to "the green cable"

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Electricity prices on European wholesale markets increased in 2018


Wholesale electricity market prices in Central Western European (CWE*) countries show an average increase of 24 percent. Dutch market prices rose...

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TenneT connects Dutch North Sea wind farms using the world’s highest capacity connections


It was announced today that TenneT, as onshore and offshore transmission system operator, will connect 6.1 gigawatts of new offshore wind farms to...

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