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 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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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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News News Congestie

Progress of TenneT congestion management studies

TenneT will anticipate the new Electricity Grid Code in its ongoing congestion management studies. This will offer more possibilities to meet connection requests. These congestion studies will be completed as from Q1 2022.

Earlier this year TenneT announced a number of new congestion studies for Brabant, Limburg, Friesland, Flevopolder, Gelderland and Utrecht. The rapid growth of sustainable production in particular has created bottlenecks in various regions. The grid manager will then start a study into the possibilities of applying congestion management. Congestion management, in which flexibility plays an important role, allows for better use of the existing grid and creates room for new initiatives. The application of congestion management is a temporary measure on the way to structural grid reinforcements.

New regulations in development

New regulations on the application of congestion management are currently being developed. The current rules provide limited scope for applying the market mechanism, do not meet the challenges of the energy transition and are therefore in need of renewal. The outlines of the new rules were published by the regulator ACM in August. The consultation round has closed and the regulator has held a hearing on the views.

More opportunities based on new code decision

The new Grid Code will provide more scope for the application of congestion management, allowing more customers to be connected to the grid. Anticipating these changes, TenneT is therefore conducting congestion studies - in anticipation of the final code decision - on the basis of the new rules. In doing so, TenneT is for the time being applying its views on the ACM's draft decision. Once the Code is finalised, TenneT will update its studies as necessary. TenneT expects the studies to be completed as of Q1 2022.

More information on congestion management

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