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).
Our key tasks
Innovation
TenneT presents Hub and Spoke concept for large scale wind energy on the North Sea.
Read moreOur 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.
Offshore Outlook 2050
Already by 2030, the originally planned capacity of 15 gigawatts of offshore wind energy will increase to 20 GW.
To Offshore Outlook 2050Electricity 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.
Transparency data
We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E.
To transparency pagesE-Insights
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.
Company
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.
We are TenneT
Meet usContact
Our contact information in the Netherlands and Germany.
General
Monday to Friday from 8:30 a.m. to 5:00 p.m.
Customer contact
Customer Care Center: For customers of TenneT Netherlands only.Press Netherlands
See our press room for Dutch press contactsPress Germany
See our press room for German press contactsContact Purchasing Germany (Supply Chain Management)
general requestsContact Purchasing Netherlands (Supply Chain Management)
general requestsHead office TenneT
TenneT Holding B.V. and TenneT TSO B.V.
Mariëndaal Centre of Excellence
Our locations
Our locations in the Netherlands
TenneT’s head office is located in Arnhem, the Netherlands. We also have regional offices in Gouda, Weert and Hoogeveen. Contact details and route descriptions are available via our Locations page.
Our locationsOur locations in Germany
TenneT’s head office in Germany is located in Bayreuth. We also have regional offices in Berlin, Dachau, and Lehrte. Contact details and route descriptions are available via our Locations page.
Our locationsOur location in Brussels
TenneT's Belgium office is located in Brussels. Contact details are available via our Locations page.
Our locationsInformation 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!