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 23,500 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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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 42 million people.

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We are TenneT

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News Market

Invitation to potential suppliers of electricity for the commissioning phase of the Cobra-cable

TenneT shall tender the procurement of electricity to cover the electricity that is needed for the commissioning phase of the Cobra-cable, as from week 27.

The commissioning phase covers 28 testing days, with one or more tests. Dependent on the test, the power on the cable will vary from 0 – 700 MW. The electricity to be transported (import and export) is expected to be 0 – 12 GWh per day.

The electricity for part of the tests, will be procured from a contracted supplier / BRP, where TenneT can order a profiled amount of electricity for one or more 15-minute-periods. This can be a supply to TenneT (for the purpose of export from NL > DK1) or consumption from TenneT (for the purpose of import from DK1>NL).

It concerns the energy that needs to be bought and/or sold on the Dutch end of the Cobra cable.

TenneT hereby invites interested parties to contact TenneT, on tendereenv(at)tennet.eu, to request the documentation.

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