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.

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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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Rules and procedures

There are clear rules and procedures in place to ensure the security of the electricity supply. These provide clarity on the tasks and responsibilities of all the parties involved in the transmission of electricity.

They define each party’s role, ensure effective communication between all parties, provide transparent tariffs and enable the electricity market to operate freely. In deciding the rules and procedures, TenneT worked with the regional grid operators and other parties involved in transporting electricity.

The rules are laid down in codes such as the Grid Code, the System Code and the Metering code. The tariff structure is set out in the Tariff Code.

Should one or more parties not adhere to the agreements, or if a key grid management application is temporarily unavailable, emergency procedures can be implemented.

Dutch regulation

You can find the Dutch grid codes on the website of the ACM.

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German rules and procedures

You can find the German rules and procedures here.

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Emergency procedure 'Offering GLMD messages' (131 KB, pdf, 17/11/21)

Emergency procedure 'Offering GLMD messages' Download Download
Emergency procedure offering EDINE messages (174 KB, pdf, 28/07/16)

Emergency procedure offering EDINE messages Download Download
Generation and load data provision methodology (547 KB, pdf, 12/01/17)


Generation and load data provision methodology Download Download