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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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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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. 



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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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News Congestie Market

Pre-announcement congestion management Noord-Brabant

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Expected congestion area, period and cause

TenneT expects structural congestion, as referred to in Article 9.5 of the Electricity Grid Code, in the Noord-Brabant 150kV grid section for the period 2021-2031.

The Cuijk, Haps and Boxmeer substations in North Brabant are part of the Limburg 150kV grid section and are therefore not included in this congestion survey. The expected congestion is caused by the growth of solar and wind production in North Brabant in the grid of the regional grid operator (Enexis) and TenneT. The resulting higher transport demand cannot be fully facilitated due to the limited available transport capacity in the high-voltage grid. 

What is the contracted and available transmission capacity?

It concerns a meshed grid section in which the relationship between the capacity that has been contracted and the capacity that can be facilitated is not 1:1. When determining the available transmission capacity, TenneT also takes into account the simultaneity of the various types of generation and demand. In the North Brabant 150kV grid section, TenneT has assigned a limit to each substation that indicates the available transmission capacity. At present, the forecast contracted transmission capacity exceeds the available transmission capacity at the 14 stations listed below. Limited capacity is still available at other 150kV stations in North Brabant. It will be investigated whether application of congestion management in the North Brabant grid section can lead to an increase in the limits. 


StationProvided contracted transmission capacityAvailable transmission capacity
Aarle-Rixtel 150kV14255
Biesbosch 150kV3713
Boxtel 150kV8930
Breda 150kV9156
Etten 150kV155122
Geertruidenberg 150kV184119
Hapert 150kV349142
Helmond Oost 150kV14435
Helmond Zuid 150kV17375
Moerdijk 150kV324200
Princenhage 150kV4840
s-Hertogenbosch West 150kV7849
Uden 150kV19845
Waalwijk 150kV346147

*Data supplied by Enexis. The stations Bergen op Zoom, Best, Eerde, Eindhoven West, Eindhoven South, Maarheeze, Oss, Tilburg West, Tilburg South and Woensdrecht are classified by Enexis as 'Phase 1', which means that there is limited transport capacity available for feed-in. 

Grid planning

The structural solution consists of splitting the North Brabant grid into five grid sections, increasing the 150/380kV transformation capacity and upgrading and developing new connections. This concerns a large number of projects with mutual dependencies and different lead times. A project in the Zeeland grid section will make it possible to split the 150kV grid in Zeeland and Noord-Brabant in 2022 and to create additional space for transmission, mainly in West-Brabant. Expansion of the infrastructure will take place in stages at various stations. The splitting of the North Brabant grid into two parts will already solve a substantial part of the problem, to be completed in 2026. Ultimately, the expectation is that five different 150kV grid sections will be created, each with its own connection to the 380kV grid. 


TenneT is conducting research into the possibility of applying congestion management in the area referred to in Article 9.5, subsection 5 of the Electricity Grid Code.

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