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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Transparency data

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. 

E-Insights

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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Offshore grid Hollandse Kust (zuid) Alpha and Beta ready for use

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Celebrating a significant energy transition milestone at the Maasvlakte

Hollandse Kust (zuid) Alpha and Beta, TenneT’s high voltage connections for offshore wind farms Hollandse Kust (zuid) I and II are ready for use. TenneT completed the installation and energization of the offshore Beta grid connection; the Alpha grid connection was already completed in March. Wind farm developer Vattenfall can now connect the wind turbines to the high voltage grid. Today TenneT, together with stakeholders and contractors, celebrated this significant milestone during the Net op Zee event at the Hollandse Kust (zuid) land station on the Maasvlakte.

Hollandse Kust (zuid), or HKZ in short, connects the wind farm area with the same name – located approximately 20 kilometers off the coast of The Hague – to the Dutch mainland. Developed by Swedish energy company Vattenfall and owned by Vattenfall, BASF and Allianz, the 1400 MW HKZ windfarm will become world’s largest and 1st subsidy free offshore wind projects when it’s fully commissioned in 2023.

Partnering for the energy transition

The wind farm area will generate green electricity equal to the energy used by one and a half million households annually. Manon van Beek, CEO TenneT: “The significance of this is huge: wind energy is a major driver of the energy transition, and we’re proud that TenneT’s work is contributing to a sustainable future. But we’re just one player in the complex process of making the energy transition happen. The task ahead of us is enormous and partnering with other parties in the chain is crucial to reach our future targets.”

“Power sockets at sea”

Hollandse Kust (zuid) consists of a land station, sea cables and two High Voltage Alternating Current (HVAC) transformer stations, located about 20 kilometres off the coast of The Hague. These transformer stations can be considered as “power sockets at sea”, to which Vattenfall’s wind farm area can be connected in order to bring the wind energy to the mainland. During the Net op Zee event Vattenfall CEO Martijn Hagens and Manon van Beek, performed the symbolic and ceremonial act of plugging together the Offshore wind farm with the onshore grid.

“Wind energy, both onshore and offshore, is one of the cornerstones to reach our ambition of a fossil free living within one generation. Connecting Hollandse Kust Zuid with its customers is a big milestone for our project, especially given that we expect first power any time soon. We congratulate the offshore division of TenneT with this success,” says Martijn Hagens, CEO of Vattenfall in the Netherlands.

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Jorrit de Jong

Media Relations

+31 026 373 26 00

press@tennet.eu

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