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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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 42 million people.

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We are TenneT

Meet us


All press releases and updates.

TenneT preparing to meet European energy system challenges

03/12/2020 10:51:36 AM News

TenneT's efforts to drive the energy transition, one of its strategic priorities, are increasingly focused on innovation, optimisation of the current high-voltage infrastructure and close cooperation…

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TenneT partners with EIB to power new transmission connection for offshore wind energy

03/09/2020 02:09:00 PM News

EIB signs EUR 250 million loan agreement with TenneT to finance the 43km high-voltage transmission connection between Borssele and Rilland. High voltage connection upgraded in anticipation of…

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Deep Dig-It Trencher buries cables more than 5 metres below the seabed to connect offshore wind farms

03/03/2020 11:51:00 AM News Innovation

Rotterdam, 6 March 2020 - TenneT is building the Hollandse Kust (South) offshore grid to the north of the Maasvlakte, to connect new wind farms. Four cables will have to be routed into the North Sea…

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Grid balancing with horticulturists, electric boilers and car batteries enabled by TenneT's mobile network in pilot project

02/25/2020 02:40:00 PM News Innovation Congestie

TenneT is investigating the possibility of using decentralised (sustainable) electrical power to participate in the market to balance supply and demand on the Dutch high voltage grid. This is the…

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Congestie Gelderland, Noord-Holland en Friesland

02/13/2020 05:30:00 PM News Market Congestie

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

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TenneT develops first 2GW offshore grid connection with suppliers

02/13/2020 09:30:00 AM News

Forty percent of the Netherlands’ electricity needs will come from offshore wind farms by 2030. TenneT will realise the grid connections for these wind farms. Alongside the eight 0.7 Gigawatts (GW)…

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