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.

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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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Grid capacity map

This grid capacity map gives an indication of the available space at TenneT's 110 kV and 150 kV substations for feeding in renewable electricity. The map also provides a forecast of that capacity up to the year 2030.

With this online map, TenneT provides insight into the high-voltage stations at which transport capacity is available for feed-in. In calculating the capacity for future years, all new construction projects that are in the design or construction phase have been included. TenneT is also currently investigating a large number of additional new construction projects to further expand the capacity of the high-voltage grid. These are included in TenneT's Investment Plan.

This map gives initiators for sustainable electricity production more insight into the available capacity on the high-voltage grid - now and in a few years' time. Due to the rapid growth of solar parks in particular, the maximum available transmission capacity has been reached in a number of places. If you have any concrete plans, therefore, always contact your grid operator first. For questions or comments on this map, please contact TenneT's Customer Care Centre.

Our grid capacity map (in Dutch)