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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Offshore Outlook 2050

Already by 2030, the originally planned capacity of 15 gigawatts of offshore wind energy will increase to 20 GW.

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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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TenneT congratulates Vattenfall

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TenneT warmly congratulates Vattenfall as the winner of the tender for the offshore wind farm Hollandse Kust (zuid) 3 and 4. This is another wonderful confirmation of the success of the Dutch approach to the development of offshore wind energy. Our compliments go to the Ministry of Economic Affairs and Climate, RVO and all parties that submitted a bid to once again reach a subsidy-free tender.

In this way, the government and the wind industry, in close cooperation with the grid operator, make it possible to keep the energy transition affordable. We know Vattenfall as a professional partner and look forward to further cooperation on the successful completion of the connection of all wind farms off Hollandse Kust (zuid).

Manon van Beek (CEO) and Marco Kuijpers (Director Offshore Projects).

Offshore electricity grid Hollandse Kust (zuid)

The wind farms in lots III and IV will be connected to the offshore platform Hollandse Kust (south) Beta by means of the standardized concept based on 700MW AC technology. TenneT designed this concept in close consultation with the wind farm developers. The delivery date for this part of the offshore grid was set by the Ministry of Economic Affairs at 31 March 2022.

The irrevocable permits for the route of the transport cables to Maasvlakte Noord have been granted. The tenders for the sea and land cables and the platform were also awarded. The realisation phase has therefore started. For more information on the status of the project: https://www.netopzee.eu/hollandsekustzuid/

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Jeroen Brouwers

Media Relations

+31 (0)26 373 26 00


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