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 23,000 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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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 41 million people.

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We are TenneT

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Dynamic data exchange

Information and Description of the dynamic data exchange-process

As a result of the introduction of MaBiS some selected time frames have been defined, which effect immediately on the payroll relevancy (data status) of the time series. The BKV received the task to provide the forwarded time series from the BIKO with attests (positive or negative), as a further instrument to influence the data status of a time series.

Overview data status and influence of attests

Bilanzkreisabrechnung Korrektur-Bilanzkreisabrechnung Bedeutung
0.-10. Werktag30. Werktag - Ende 4. MonatErstaufschlagsrecht der NB für die jeweilige BKA bzw. KBKA. Gelieferte Zeitreihen erhalten immer den Datenstatus "Abrechnungsdaten" bzw. "Abrechnungsdaten KBKA"
11.-29. Werktag5. Monat - Ende 7. MonatClearingphase BKA bzw. KBKA. Daten erhalten den Datenstatus "Prüfdaten" bzw. "Prüfdaten KBKA". (insofern die Vorgängerversionen nicht positiv geprüft wurden)
18. WT (Datenbestand 15. Werktag)8. Werktag des 5. Monats (Datenbestand Ende 4. Monat)Vorläufige Bilanzierung inkl. Versand der vorläufigen Abrechnungssummen. Hinweis: Es findet dur ein Versand statt, wenn sich etwas zur vorher versendeten Zeitreihe verändert hat.
42. WT (Datenbestand 29. Werktag)8. Monat (Datenbestand Ende 7. Monat)Abrechnungsrelevante Bilanzierung inkl. Versand der abgerechneten Abrechnungssummen. Hinweis: Es findet nur ein Versand statt, wenn sich etwas zur vorher versendeten Zeitreihe verändert hat.

Overview data stpp dates, time frames nd delivery dates within the scope of balancinggroup statement


Please see the following presentation for further details about dynamic data exchange:
Presentation (978 KB, pdf, 11/17/2016)

MaBiS Processes (german)

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