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 over 22,500 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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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


Explore our projects in Germany and the Netherlands.


The increasing amount of renewable energy fed into the grid in Schleswig-Holstein has made it necessary to expand the existing grid structure. The district of Schleswig-Flensburg numbers among the...

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900 MW grid connection for offshore wind farms 66 33 Onshore Projects Germany Our onshore Projects in Germany Onshore projects Netherlands Our Onshore projects Netherlands International...

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Zuid-West 380 kV West

The Ministry of Economic Affairs and Climate policy and the Ministry of Infrastructure and water management are cooperating with TenneT in working out a route for the new high-voltage line between...

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Netversterking Eemshaven voor duurzame energie

Connection Aanleg ondergrondse 150 kV kabel verbinding Lengte van 5,5 km Planning 2015: planologische voorbereidingen en inspraak 2016: aanleg tijdelijke bouwwegen, bouw 2017: afronding en...

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HVDC connection between Sachsen-Anhalt and Bavaria See the for detailed information on SuedOstLink About the project More information The energy transition which Germany has decided on is being...

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In order to ensure the security of supply for Lower Saxony in the future, the transmission capacity of the existing line must be increased by the year 2022. TenneT is making the Stade-Landesbergen...

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