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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Market coupling

TenneT works closely with other European TSOs and electricity exchanges to couple electricity markets in North West Europe.

Our goal is to establish a single, integrated market that guarantees consumers a reliable electricity supply at a fair price. 

The Dutch, French and Belgium electricity exchanges have been coupled since 2006 (Trilateral Market Coupling, TLC). This was extended to include Germany and Luxembourg in 2007 (CWE Market Coupling).

There are three coupling systems: 

1. Price coupling

2. Tight volume coupling 

3. Loose volume coupling

Price coupling

In price-based coupling, a single centralised system calculates the market prices and traded volumes of electricity, based on cross-border capacity and the order books of all power exchanges and TSOs in the coupled markets. The trilateral market coupling (TLC) system linking the power exchanges in the Netherlands, Belgium and France is an example. 

Tight volume coupling

'Tight volume coupling' determines the traded volumes between countries or regions before individual power exchanges calculate their own prices. ‘Tight’ in this context means that the volume traded is calculated on the basis of all relevant information, in the same way as in the price coupling system.. 

Loose volume coupling

In ‘loose volume coupling' , the volume traded between two countries or regions is calculated and then the prices are calculated separately. The difference with tight volume coupling is that the calculation is performed using only part of the relevant information, leading to a lower quality level.


Programme responsible parties

At the end of every day, the programme responsible parties measure their actual electricity production or consumption and report this to TenneT.

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BRP Register

Register of acknowledged parties having balance responsibility.

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History BRP register

History of the register of acknowledged parties having balance responsibility.

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