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).

 

Explore our key tasks

Innovation

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 22,000 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.

To grid maps
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.

Explore the electricity market

Transparency data

We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E. 

To transparency pages

Contact

Our contact information in the Netherlands and Germany.

General

Monday to Friday from 8:30 a.m. to 5:00 p.m.

0800 836 63 88

Customer contact

Customer Care Center: for Dutch TenneT customers only.

Press Netherlands

For journalists only; 24 hours a day, seven days a week.

+31 (0)26 373 26 00

Press Germany

See our press room for German press contacts

Press room

Head office TenneT

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

Mariëndaal Centre of Excellence

Utrechtseweg 310, Arnhem, The Netherlands +31 (0)26 373 11 11

Our locations

Our locations in the Netherlands

TenneT’s head office is located in Arnhem, the Netherlands. We also have regional offices in Waddinxveen, Weert and Hoogeveen. Contact details and route descriptions are available via our Locations page. 

Our locations

Our locations in Germany

TenneT’s head office in Germany is located in Bayreuth. We also have regional offices in Berlin, Dachau, Bamberg  and Lehrte. Contact details and route descriptions are available via our Locations page. 

Our locations

Information for visitors

ID required

All visitors to TenneT sites must report to the reception desk upon arrival and provide proof of identity, i.e. a valid passport, identity card or driving license. The receptionist will give you a personal visitor’s badge after you have registered. This badge must be worn in a clearly visible place at all times.

Route descriptions

Route descriptions are available via our Locations page. You can park in one of the visitor parking spaces. There are charging stations for electric cars available.

Safety

For TenneT, the safety of its employees and visitors is of paramount importance. We adhere to safety procedures, warn each other about unsafe situations and always report any incident or near miss. Our goal is zero accidents. Visitors will be informed about our safety policy upon arrival on TenneT premises. Stay tuned. Safety first!