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

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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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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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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 awards consortium VBMS-NKT Cables Borssele Beta export cabling contract

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TenneT has awarded Royal Boskalis Westminster N.V. (Boskalis) subsidiary VBMS in consortium with NKT Cables the Borssele Beta contract for the installation of two 67-kilometer-long export cables. The cable system will connect the Borssele offshore wind farms 3 and 4 to TenneT's onshore grid in the Netherlands. In addition, VBMS will install a seven-kilometer-long interconnector cable between the Borssele Alpha and Beta offshore substations.

The grid connection of the Borssele offshore wind area in the North Sea consists of two 700 MW connections, called Alpha (for Borssele 1 and 2) and Beta (for Borssele 3 and 4). In November 2016, VBMS-NKT was awarded the contract for Borssele Alpha as well as the option for Borssele Beta, which has now also been awarded. The four cables will be routed via the Western Scheldt estuary and will come ashore near the existing high-voltage substation at Borssele, the Netherlands. More details on TenneT's offshore activities can be found here.

To minimize maintenance to the cables during their operational lifetime, Boskalis will pre-sweep and dredge the shallow parts of the route, which will enable VBMS to simultaneously lay and bury the export cables at the required depth. Borssele Alpha will go into service in 2019 followed by Borssele Beta in 2020.


Illustration: profile of the offshore grid connection system (Borssele wind area, Dutch North Sea)
 

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Jeroen Brouwers

Media Relations

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