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 22,000 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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TenneTs activities are being supervised by ACM and Bundesnetzagentur.

Dutch regulation

The Dutch energy sector – and therefore TenneT – is supervised by the Authority for Consumers and Markets (ACM).  The ACM monitors how  we implement and comply with the 1998 Electricity Act, which marked the beginning of a liberalised gas and electricity market in the Netherlands.  

The ACM ensures the conditions for a free market are met, such as free and equal access to the electricity grid. It sets the tariffs and conditions for transmitting, connecting and supplying electricity, including the discount to promote effective operations by grid operators. It also advises the Ministry of Economic Affairs on the appointment of grid operators, permits for suppliers and tariffs and tariff structures. 

Once every two years, the ACM assesses whether grid operators are still meeting the overall demand for transmission capacity.

For more information, please visit the ACM website.

German regulation

In Germany, the Federal Network Agency, “Bundesnetzagentur” is supervising TenneTs activities. The Agency ensures a non-discriminatory access to the grid. Like in the Netherlands, it sets the tariffs and conditions for transmitting, connecting and supplying electricity. 

For more information, please visit the Bundesnetzagentur website.


Grid operators

The electricity grid is installed, managed and maintained by the grid operators. The grid operators are also responsible for connecting customers to the electricity network without prejudice.

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Electricity traders

Traders buy and sell electricity at competitive prices, directly from producers, via energy suppliers or on the Amsterdam Power Exchange (APX).

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Metering companies

Every party that purchases electricity from the grid is responsible for measuring how much they take and disclosing this information to their grid operator.

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