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 24,500 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.

To Offshore Outlook 2050
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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Grid customers

TenneT is interested in safe as well as fair access to the maximum voltage grid for all market participants. To make sure that reliable grid operation is not compromised, all grid subscribers must meet minimum requirements with their plants.

Sample contracts


Manual on Grid Management and Work on the Power Grid (NAN)

TenneT is responsible, as transmission system operator in the corresponding control area, for the construction, operation and maintenance of its grid.

The NAN regulates the duties of the power distribution control centres and operating units for high-voltage plants, including the offshore sector. It contains, in particular, agreements for activities carried out on or near high-voltage installations.

The NAN applies to grid management and the operation of all equipment owned by TenneT, and also for the management of the grid and the operation of external facilities of all voltage levels, insofar as no other agreements have been made.

NAN 2017 V10.2020 (Valid from 9 September 2020 on) (25 MB, pdf, 30/11/20)

You will receive the password required to open the document from your customer representative (if you are a grid customer) or from the responsible purchaser (if you are a supplier). (German)

NAN 2017 V10.2020 (Valid from 9 September 2020 on) Download Download


Contact Grid connection

For German customers only. Please address all questions on this topic here.