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 23,500 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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Interruptible loads

Backgroung, prequalification and contracts


With the amendment of the Energy Industry Act (EnWG) of 20 December 2012, on the part of the legislator, opportunities were created with Section 13 paragraphs 4a and 4b to impose a contractual obligation on interruptible loads, for the maintenance of network and system security. In order to provide criteria for the meaningful application of this from a technical and economic point of view, appropriate conditions were specified in the regulation on agreements on interruptible loads (German abbreviation: AbLaV).

In terms of this regulation, interruptible loads are major consumption units connected to the high and ultra-high transmission grid (at least 110kV voltage level). Those units are characterized by drawing large amount of electricity at any time and can quickly reduce their consumption of power according to the actual frequency or remote controlled for a certain period of time.

In accordance with the AbLaV, the German transmission system operators will organize a monthly tender for a total capacity of 3,000 megawatts. Each supplier with interruptible capacity that meets the technical requirements of Sections 5 to 7 of the AbLaV is entitled to participate in the tender process. This has to be demonstrated as part of the prequalification process.

The regulation on agreements on interruptible loads can be downloaded under the following Link (in German):


The connecting transmission system operator shall enter into national framework agreements with suppliers of interruptible capacity from interruptible loads in its control area, in accordance with the AbLaV. In the pre-qualification process, the supplier has to demonstrate that the consumer facilities meet the prequalification requirements of the transmission system operator based on the AbLaV.

The common prequalification requirements of the German transmission system operators can be downloaded on the right side of this page (German language only).Only suppliers who have concluded a framework agreement as part of the prequalification process are entitled to participate in the tender process.

Please contact us if you are interested in taking part in the pre-qualification process.


Requirements (214 KB, pdf, 26/11/17)

Requirements Download Download