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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Customer news

All market and customer related news.

Uitkomst onderzoek congestiemanagement Oosterwolde


In de omgeving van 110 kV onderstation Oosterwolde in Friesland is sprake van een grote toename van gevraagd vermogen voor teruglevering. Die vraag is...

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Congestie Gelderland, Noord-Holland en Friesland


Liander heeft op 6 februari nieuwe vooraankondigingen gepubliceerd voor congestiegebieden in Gelderland, Noord-Holland en Friesland.

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Invitation for the supply of Reactive Power and the compensation of grid and cable losses 2020


TenneT TSO B.V. intends to launch the process for contracting Reactive Power for 2020, Supply electricity for the compensation of Grid losses 2020 and...

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TSOs propose methodology, assumptions and alternative configurations for the upcoming European bidding zone review


In the context of the European regulation on the internal market for electricity, part of the Clean Energy Package, the European TSOs will conduct a...

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Invitation to potential suppliers of electricity for the commissioning phase of the Cobra-cable


TenneT shall tender the procurement of electricity to cover the electricity that is needed for the commissioning phase of the Cobra-cable, as from...

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Electricity prices on European wholesale markets increased in 2018


Wholesale electricity market prices in Central Western European (CWE*) countries show an average increase of 24 percent. Dutch market prices rose...

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Our customers

Our customers include everyone connected to the high voltage electricity grid as well as the parties responsible for metering and programme responsible parties.

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Customer Relations Managers

Our Customer Relations Managers represent TenneT and act as a single point of contact for customers.

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Customer Care Centre

Our customers are important to us and we apply high standards to our customer service, which we constantly strive to improve.

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