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 over 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.

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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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German market procedures

In the context of role models, roles and domains have been created which are typically used in the Internal European Energy Market. The final goal is to facilitate communication between the partners in the market.

Market and role models

In the context of role models, roles and domains have been created which are typically used in the Internal European Energy Market, IEM). Processes and IT implementations can now be described on a uniform basis. The final goal is to facilitate communication between the partners in the market.You can find detailed information in the presentation "Reading and understanding market process descriptions properly" and "Market processes in Germany and at TenneT"

Market process requirements at TenneT

  • TenneT's commitment to the establishment of standardized and automated electronic processes for the handling of network access
  • Contribution of know-how, particularly with regard to the market role of TSOs and balance coordinators (BIKOs) in process creation is required
  • TenneT can act as a multiplier in the market and has a central role in the control area for individual processes (e.g. MaBiS)
  • The consequences of market process developments for the other roles of TenneT, i.e. distribution system operator and balancing group manager, must be assessed
  • Early knowledge of developments is required in order to prepare internal processes and IT in a timely manner.

Long-term management of requirements by TenneT

  • Already very early participation (since 2000) in the relevant committees (in particular EN DuM, FA market processes in addition to PGs)
  • Setting of priorities for all vertical processes that are of particular relevance for TenneT TSO GmbH
  • Early concentration of the procedural tasks related to the market in one area, in the field of billing and financial EEG processing (no separation of development and implementation!)
  • Creation of a central platform for TenneT TSO GmbH for vertical market process requirements and questions (internal/external)
  • Central definition of implementation requirements (internal processes/IT), integration of the departments responsible for implementation
  • Since 01-04-2011, creation of a separate organizational unit

Term definitions

Market roles

  • BIKO: balance coordinator
  • DSO: distribution system operator
  • BKV: balancing group manager
  • LF: supplier


  • WiM: Change processes in measurement
  • GPKE: Business processes for delivery of electricity to the customer
  • MaBiS: Market rules for balancing group billing in the area of electricity
  • BillingBKA: balancing group billing
  • KBKA: corrective balancing group billing


PKI certificate BIKO (1 KB, cer, 07/08/2016)

PKI certificate BIKO Download Download
PKI certificate BKV (1 KB, cer, 07/08/2016)

PKI certificate BKV Download Download
PKI certificate supplier (2 KB, cer, 07/08/2016)

PKI certificate supplier Download Download
PKI certificate DSO (1 KB, cer, 07/08/2016)

PKI certificate DSO Download Download
Communication Data sheet (116 KB, pdf, 10/12/2017)

October 2017

Communication Data sheet Download Download