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).


Explore our key tasks


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 over 22,000 kilometres of high-voltage lines, we cross borders and connect countries.

Explore our grid

Grid maps

Maps of our onshore and offshore high-voltage grid.

To grid maps
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.

Explore the electricity market

Transparency data

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

To transparency pages


The roughly 13 kilometre long line section from Simbach to the border (toward St. Peter am Hart in Upper Austria) is part of the new replacement for the line from Altheim to St. Peter.

About the project

The line is being upgraded from 220 kV to 380 kV in order to connect the planned Haiming power station to the high-voltage grid. Due to the increasing expansion of renewable energy in Germany as well as the numerous new pumped storage power plants in Austria, a significant increase in the amount of power exchanged between Germany and Austria is expected.



More information

See the

German language page

for detailed information on Simbach-St. Peter

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Ina-Isabelle Haffke


+49 (0)921 50740-4070

Related Pages

Offshore Projects Germany

Our Offshore Projects in Germany

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Onshore projects Netherlands

Our Onshore projects Netherlands

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International Connections

Our International Connections

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