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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Can bi-directionally chargeable batteries in electric vehicles help to keep the power grid stable? TenneT is currently testing this in a joint pilot project with Nissan and The Mobility House.

Challenges inherent to the energy transition

The changed generation structure and the growing share of renewable energies in the electricity grid pose a major challenge to security of supply: Increasingly, grid operators are having to intervene because increasingly volatile power generation has to be balanced against power consumption, for example when large amounts of wind power from the north push into the lines. With costly consequences for consumers.

Need for storage facilities

One way of balancing out fluctuations in energy generation from renewable energies, i.e. solar power and wind energy, is to use electricity storage. Even though much is already being discussed and researched into storage options, there are currently no large electricity storage facilities available that could absorb or feed electricity into the grid depending on the situation.

The pilot project

In spring 2018, TenneT, the energy service provider The Mobility House and the automobile manufacturer Nissan launched a joint pilot project to investigate whether electric cars can contribute to solving this problem. In addition, proposals for regulatory guidelines for the "Vehicle-to-Grid" concept will be developed and evaluated.

TenneT Cooperation Project Grid Stabilization - Vehicle 2 Grid

What is the core of the pilot project?

TenneT, The Mobility House and Nissan are using the potential of electric vehicle batteries in the pilot project to store locally produced electricity and feed it back into the grid to stabilise the grid. As a first step, this will be tested on Nissan Leafs used in the TenneT service groups.

When are the first results expected?

First results are expected in the first quarter of 2019. During the project phase, Nissan electric vehicles will be used in the TenneT control area in northern and southern Germany as mobile energy storage systems to directly reduce local overloads in the power supply and demand.

What is the vision?

After a successful pilot phase, Nissan electric vehicles could stabilize the network throughout Germany. The intelligent charging and energy management software developed by The Mobility House enables automated control of the charging and discharging process. The most important prerequisite for this is the ability to charge in two directions, i.e. that electric vehicles not only draw energy from the grid, but can also feed it back into the grid when required.


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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