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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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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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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We are TenneT

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Customer news

All market and customer related news.

COBRAcable back in operation on January 8

01/07/2021 04:28:42 PM Market Project Dutch

The COBRAcable is planned to be back in operation on January 8, at 12:00. The COBRAcable directly connects the Dutch and Danish electricity networks since 2019, but was out of operation due to a…

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TenneT and ENGIE Solutions/Iemants sign contract for offshore transformer substation Hollandse Kust (west Alpha)

12/07/2020 01:37:21 PM News Market Project

A joint venture consisting of ENGIE Solutions and Iemants (subsidiary of Smulders) and TenneT have signed a contract for the offshore transformer substation Hollandse Kust (west Alpha). Earlier this…

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Progress of study into congestion in the Province of Zeeland

11/20/2020 09:24:00 AM Market Congestie

There is rapid growth in the sustainable generation of solar and wind power initiatives in Zeeland. As a result, TenneT’s grid in this province is quickly reaching capacity. While the grid’s capacity…

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Invitation for Tender: Delivery of electricity and gas for TenneT offices

11/11/2020 10:37:46 AM News Market

TenneT intends to start the procurement of electricity and gas for the TenneT offices in the Netherlands on the 10th of November 2020, for the period 2021 until 2023. Based upon historical data the…

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Changes in contracting Incident Reserve and Regulating Power

07/28/2020 12:13:39 PM News Market

Hereby TenneT wants to inform the market on the upcoming changes in the process on contracting of Incident Reserve and Regulating Power. Hereby TenneT wants to inform the market on the upcoming…

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The FCR cooperation reaches the next milestone in the development of the largest FCR market in Europe

06/30/2020 10:30:00 PM News Market Innovation

The daily D-1 auctions for FCR with 4-hour products started successfully. 50Hertz, Amprion, APG, Elia, RTE, Swissgrid, TenneT, TransnetBW announce the successful first frequency containment reserve…

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Our customers

Our customers include everyone connected to the high voltage electricity grid as well as the parties responsible for metering and programme responsible parties.

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Customer Relations Managers

Our Customer Relations Managers represent TenneT and act as a single point of contact for customers.

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Customer Care Centre

Our customers are important to us and we apply high standards to our customer service, which we constantly strive to improve.

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