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 22,000 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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Project news

All project related news.

Roofing ceremony for NordLink converter building The green direct current connection between Germany and Norway is now becoming visible

10/06/2017 08:46:45 AM Project German

Key project for the energy transition and integration of the European energy market / Exchange between German wind energy and Norwegian hydropower Key project for the energy transition and...

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NordLink: Launch of laying the ‘green link’

08/01/2017 03:01:32 PM News Project German

First few kilometres laid on the seabed in the Norwegian Vollesfjord - cable lay vessel is heading for Germany / Construction of the direct current connection for the exchange of renewable energy...

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DONG Energy and TenneT sign first offshore grid connection agreement

07/07/2017 10:09:28 AM Project

TSO TenneT and wind farm developer DONG Energy have signed the grid connection agreement for the wind farm Borssele 1 & 2 off the coast of the Dutch province Zeeland. The signed agreements relate to...

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TenneT concludes contract for UXO survey at cable route Borssele offshore grid

06/19/2017 01:00:00 PM Project Dutch

TenneT TSO B.V. has concluded a joint contract with Fugro and Boskalis to survey and identify Unexploded Ordnance (UXO) in relation to the cable routes for the planned offshore grid connection of...

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TenneT switches DolWin2 offshore grid connection significantly earlier

01/13/2017 10:33:51 AM Project German

Significant optimisation of the repair processes and work acceleration have further reduced the anticipated switch-off / Re-connection has already taken place on 8 January 2017 Significant...

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Works starts in Eemshaven on COBRAcable – a ‘green’ subsea electricity highway between the Netherlands and Denmark

01/03/2017 03:00:00 PM Project

Today TenneT and its Danish partner Energinet.dk drove the first pile into the ground for the construction of the Dutch convertor station of the COBRAcable, a subsea electricity connection that will...

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