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.

To Offshore Outlook 2050
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. 

To transparency pages

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

Meet us

TenneT power flow simulator

How does our electricity system work? What happens if a power line breaks down? Why do we have to avoid traffic jams in the grid? The TenneT power flow simulator playfully helps you to better understand these and many other questions about our transmission network. Step into the shoes of TenneT and discover the challenges of operating and building your own high-voltage grid.


The TenneT power flow simulator gives you the opportunity to operate and build your own electrical grid. It allows you to experience the real-life challenges that transmission system operators like TenneT face every day and it shows you what TenneT does to ensure a reliable and uninterrupted supply of electricity. The "Learn" section playfully guides you through different scenarios and challenges that you need to complete. In the "Explore" section you are free to try out all the functionalities of the system and you can even build your own grid in the ''expert mode''. It is also possible to save the grid that you've built, so that you can continuously keep working on it. 

The tool works best within
- GoogleChrome 74+
- Firefox 60+

further innovations


TenneT is participating in two major European research programmes: PROMOTioN and MIGRATE. These programmes were initiated in response to new challenges related to the development of offshore power grids and the increasingly important role of solar and wind energy.

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North Sea Infrastructure

TenneT presents Hub and Spoke concept for large scale wind energy on the North Sea. 

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Mobile sensoring

Can data from vehicle sensors contribute to the success of the energy transition? Within the scope of a pilot project, TenneT and VW are currently investigating how weather data obtained from VW Group vehicles can be used to improve solar energy forecasts.

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