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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Innovation

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 24,500 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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We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E. 

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E-Insights

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. 

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E-Insights

Facts & figures related to TenneT facilitating the market can be found here.

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Company

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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News News

TenneT awards Boskalis consortium Hollandse Kust West Beta export cabling contract

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Boskalis has been awarded the Hollandse Kust West Beta export cable contract by TenneT, in consortium with Orient Cables (NBO). The contract scope comprises the installation of two 65-kilometer-long export cables that will connect the planned Hollandse Kust West Beta 700 MW offshore wind farm to TenneT’s onshore grid in the Netherlands. 

‎Furthermore, Boskalis will install a 9-kilometer-long 66kV interconnector cable between the Hollandse Kust West Alpha and Hollandse Kust West Beta offshore substations. Boskalis will execute this contract in consortium with its partner NBO that will design and supply the high-voltage cable system. The two 220kV AC cable circuits will come ashore near the existing onshore high voltage substation at Wijk aan Zee, the Netherlands.

Integrated solution

For this project Boskalis will deliver integrated solutions and in-house services for cable production, beach and seabed preparation works and the lay and burial of the cables. The Hollandse Kust West Beta offshore windfarm is expected to enter service in 2025. 

NOx reduction

As a novelty, TenneT allowed the parties to this tender to specifically manage the reduction of nitrogen emissions (NOx) during the work. In the tender process bidders had to include a calculation model how their installation method would remain below the NOx emissions threshold. 

Next step in sustainable energy supply

This contract means a continued collaboration between TenneT and Boskalis in the North Sea. Marco Kuijpers, Director Large Projects Offshore TenneT: "Due to previous experience in the installation of the sea cables for the Borssele offshore wind farm, we are looking forward to this new cooperation with Boskalis for Hollandse Kust west Beta. The connection of this future offshore wind farm is the next important step towards a sustainable energy supply."

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Jorrit de Jong

Media Relations

+31 026 373 26 00

press@tennet.eu

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