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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Grid maps

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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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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Customer news

All market and customer related news.

Progress of study into congestion in the Province of Zeeland

11/20/2020 09:24:00 AM Market Congestie

There is rapid growth in the sustainable generation of solar and wind power initiatives in Zeeland. As a result, TenneT’s grid in this province is quickly reaching capacity. While the grid’s capacity…

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Uitkomst onderzoek congestiemanagement Oosterwolde

02/14/2020 02:36:00 PM News Market Dutch Congestie

In de omgeving van 110 kV onderstation Oosterwolde in Friesland is sprake van een grote toename van gevraagd vermogen voor teruglevering. Die vraag is dusdanig groot dat het 110 kV netwerk die vraag…

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Congestie Gelderland, Noord-Holland en Friesland

02/13/2020 05:30:00 PM News Market Congestie

Liander heeft op 6 februari nieuwe vooraankondigingen gepubliceerd voor congestiegebieden in Gelderland, Noord-Holland en Friesland. Liander heeft op 6 februari nieuwe vooraankondigingen gepubliceerd…

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Our customers

Our customers include everyone connected to the high voltage electricity grid as well as the parties responsible for metering and programme responsible parties.

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Customer Relations Managers

Our Customer Relations Managers represent TenneT and act as a single point of contact for customers.

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Customer Care Centre

Our customers are important to us and we apply high standards to our customer service, which we constantly strive to improve.

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