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

Meet us

What does it take?

The world around us is changing rapidly. The European electricity market is becoming more integrated and there is more electricity being transmitted across borders. Pushed by governments and the general public, there is a rapid transition from fossil fuels to renewable energy sources, such as wind and solar power, and increased focus on the need for European energy independence. At the same time, energy generated locally and by individual households is replacing demand for centrally-produced power. Consumers also become producers, or ‘prosumers’.

A continuous power supply

To make sure TenneT can deliver a continuous power supply during the switch to renewable energy, we need to invest heavily in developing, reinforcing and expanding our grid in the Netherlands and Germany over the next ten years. Upgrading the grid will provide the extra capacity and flexibility we need to prevent it from being overloaded on days when there is a lot of wind, for example. We need to be able to  transport energy over increasingly long distances. This is a particular challenge with wind energy, which is generated far offshore in the German North Sea, and used by high concentrations of end users hundreds of kilometres away in the south of Germany. In the Netherlands,  TenneT is preparing for the construction of a high voltage grid near the Dutch North Sea coast, which will need to be supported by a strengthened grid onshore.

Increasing our grid capacity, as well as strengthening our connections to North West European countries, will help us guarantee a reliable supply of sustainable electricity in the Netherlands and abroad. Investing in our grid will also contribute to stable price levels and provide a secure, reliable supply of electricity in the long term.

We can not do this important work in isolation, so throughout all the planning stages and during construction work, we  talk and listen to the views of everyone involved – e.g. local communities, politicians, NGOs and all other stakeholders.