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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Innovation

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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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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We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E. 

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E-Insights

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. 

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E-Insights

Facts & figures related to TenneT facilitating the market can be found here.

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Company

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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Forecast congestion management grid section Friesland

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TenneT expects structural congestion, as referred to in Article 9.5 of the Electricity Grid Code, in the western and southern part of 110 kV Friesland grid during the period 2021-2028. 

The expected congestion is caused by the growth of solar and wind production in the grid of the regional grid operator (Liander) and TenneT. The resulting higher transmission demand cannot be fully facilitated due to the limited available transmission capacity in the high-voltage grid. 

What is the contracted and available transmission capacity?

The congestion area concerns the 110 kV stations Gorredijk, Heerenveen, Herbayum, Leeuwarden, Lemmer, Louwsmeer, Marnezijl, Oosterwolde, Oudehaske, Rauwerd, Schenkenschans, Sneek and Wolvega. In the mentioned congestion area, the total contracted transmission capacity is about 1500 MW. The total available transmission capacity is approximately 980 MW. This capacity is completely forgiven in signed bids for contracted transmission capacity. There are no restrictions with regard to consumption.

The planning of the grid reinforcement

The structural solution consists of adjusting and reinforcing the Frisian 110 kV grid and increasing the 220/110 kV transformer capacity.

Research

TenneT is conducting research into the possibility of applying congestion management in the area mentioned above in accordance with the Grid Code Electricity article 9.5 section 5.

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