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).
Our key tasks
Innovation
TenneT presents Hub and Spoke concept for large scale wind energy on the North Sea.
Read moreOur 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.
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.
Transparency data
We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E.
To transparency pagesE-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.
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.
We are TenneT
Meet usDolWin3
160-kilometer DC connection for offshore wind power
Facts
Connection
- 160 km long nd 900 MW capacity
- 80 km onshore cable
- 80 km offshore cable
Grid Connection Point
- converter station Dörpen/West
Status of project
- Ready for feed-in since September 2018
About the project
The DolWin3 project is the third offshore grid connection in the so-called DolWin cluster. The offshore grid connection connects the wind farms Merkur Offshore and Borkum Riffgrund 2 in the south-western part of the German North Sea with the onshore transmission grid. Around 160 kilometers of cable were laid for this purpose: 80 kilometers each at sea and on land.
In July 2017, the heart of the DolWin3 grid connection, the DolWin gamma converter platform, was installed at sea. The platform, built in Warnemünde, Mecklenburg-Western Pomerania, covered a six-day journey along the German and Danish coasts to its final location in the North Sea. There it was successfully installed over several days on the substructure already installed in 2016 - the so-called Jacket. The 900 megawatt (MW) grid connection has been ready to be fed into the grid since September 2018. With DolWin3, more than one million households can be supplied with clean wind energy.
