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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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

What opportunities are there for new feed-in initiatives on the TenneT grid in the Netherlands? The map below provides immediate insight into where and how much capacity is available at the connection stations.

On our journey to a sustainable energy supply, society has seen a rapid development of solar and wind power. All these initiatives have led to many requests on the network for a connection in recent years.

As a result, the maximum available transmission capacity for the redelivery of electricity has been reached in a number of places. TenneT's online map makes it transparent which high-voltage substations have transmission capacity available for feed-in electricity.

If a station is coloured green, there is room for a connection and the requested transmission can be facilitated. If a station is coloured red, there is no transmission capacity available at that moment. It is also possible that research into the possibilities of congestion management is ongoing. In that case the station is coloured blue.   

These insights help initiators of sustainable production and regional grid operators to gain immediate insight into the available capacity on the high-voltage grid. The map is updated every quarter. Changes may occur at that time, for example because additional capacity is available due to expansion of the infrastructure or because new requests mean that a station has reached its maximum capacity.

Do you have questions, comments or specific feedback on this map? Please feel free to contact us or our relationship managers via TenneT Customer Care Center.

Our grid capacity map (in Dutch)