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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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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Equigy platform gives European consumers access to tomorrow's sustainable energy market

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  • TSOs TenneT, Swissgrid and Terna are developing a European blockchain platform.
  • Batteries from millions of households will stabilise the electricity grid in the future.
  • Important innovation for the success of the energy transition.

Together with TenneT (Germany and the Netherlands), Swissgrid (Switzerland) and Terna (Italy), four of the largest European transmission system operators are now jointly developing a cross-border blockchain platform - Equigy. This will enable millions of European households and owners of e.g. electric vehicles to actively offer the flexible capacity of their cars and house batteries on the energy markets to stabilise the electricity system and thus earn money from the energy transition.

The energy world is changing rapidly, both on the supply side and on the demand side. As the electricity system increasingly relies to a large extent on sustainable and fluctuating electricity generation, there is a need for new sources of flexibility to keep the grid in balance. Many TSOs are traditionally dependent on fossil fuel thermal power plants for this purpose. At the same time, energy consumption is also changing due to the increasing demand for electric cars, heat pumps and solar panels. All this leads to fluctuations in supply and demand.

"Now that the conventional power stations are closing, we are preparing for a future in which we are largely dependent on consumers with their electric cars, home batteries and heat pumps to stabilise the grid reliably, sustainably and cost-effectively. In order for all these devices to work together to balance the grid, the Equigy platform provides an important technical basis. With this platform, data can be exchanged between the devices, market players and grid operators. This means that everyone will soon be able to help realise the energy transition and also benefit financially from it," says TenneT CEO Manon van Beek.

"Equigy originated from European cooperation. In a common European market we will have to develop solutions together. We already have the same sockets. It would be a shame and unnecessarily expensive to develop different systems. In view of the European Union's ambitious climate objectives, this platform is one of the innovations needed to guarantee the security of energy supply even after the abandonment of fossil fuels".

The Equigy platform will initially be launched in Germany, the Netherlands, Switzerland and Italy. The partners expect other European network operators to join as well.  

About the Equigy platform:

In tomorrow's energy world, millions of small decentralised electricity producers, consumers and storage facilities such as electric vehicles, domestic batteries and heat pumps will help to cope with grid bottlenecks and balance fluctuations between generation and consumption. In this way, they take over tasks that today are mainly carried out by large power plants such as coal- and oil-fired power plants with a capacity of several hundred megawatts.

For millions of decentralised small storage units in households in the one to two digit kilowatt range across Europe to be able to offer their free capacity for grid stabilisation, automated processes and IT solutions are needed that make this possible in a simple, fast and cost-effective way. With the Equigy platform, the TSOs create the conditions for this. As an open source solution, the platform will be available free of charge.

The platform uses blockchain technology which allows transactions from millions of individual systems to be carried out securely, cost-effectively and transparently. Unambiguous laws and regulations enable consumers, businesses and manufacturers to market the flexible capacity of electric vehicles, domestic batteries and heat pumps easily and location-independently in all participating countries, thus simplifying access to the electricity market. At the same time, all local/regional flexibility platforms can be connected to the Equigy platform so that as much flexibility as possible can be bundled.

TenneT has already gained a great deal of experience in numerous pilot projects involving the use of decentralised flexibility from domestic batteries and e-vehicles, such as the collaboration with Sonnen and Vandebron and participation in the 'Bidirectional Charging' consortium with BMW.

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Eefje Van Gorp

Media Relations

+31 026 373 26 00


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