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 over 22,500 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 41 million people.

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We are TenneT

Meet us


TenneTs head office is located in Arnhem, with regional offices in Gouda, Weert and Hoogeveen. The head office of TenneT Germany is located in Bayreuth. We also have offices in Berlin, Lehrte and Dachau. The Group representative office is locatedin Berlin. TenneT also has an office in Brussels, Belgium.

TenneT in the Netherlands

Head office TenneT

TenneT Holding B.V. and TenneT TSO B.V.

Mariëndaal Centre of Excellence
Utrechtseweg 310, Arnhem
The Netherlands

Telephone: +31 (0)26 373 11 11


Post address

Postbus 718
6800 AS Arnhem
The Netherlands

Invoice address

Postbus 428
6800 AK Arnhem
The Netherlands

invoice(at)tennet.eu (digital invoices) 

TenneT region West

Tielweg 28
2803 PK Gouda
The Netherlands

Telephone: +31 (0)26 373 11 11

TenneT region Zuid

Copernicusstraat 9
6003 DE Weert
The Netherlands

Telefophone: +31 (0)26 373 11 11

Region Noord

De Stroom 2
7901 TE Hoogeveen
The Netherlands

Telefophone: +31 (0)26 373 11 11

TenneT in Germany

Head office Germany

TenneT TSO GmbH
Bernecker Straße 70
95448 Bayreuth

Telephone: +49 (0)921 50740-0 

TenneT Lehrte

Eisenbahnlängsweg 2a
31275 Lehrte

TenneT Berlin

Friedrichstraße 150
10117 Berlin

TenneT Virtual Vision (Berlin)

Friedrichstraße 152
10117 Berlin

TenneT in Belgium

TenneT Brussels

TenneT Holding B.V.
European Office
Rue des Deux Eglises 29
1000 Bruxelles