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 over 22,500 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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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. 

E-Insights

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 41 million people.

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We are TenneT

Meet us

Offshore projects Germany

TenneT is the largest investor in the energy transition

Our Mission: Enabling Sustainable Energy Supply

The Energy Turnaround is the biggest project for the future that has ever taken place in Germany. In the future, we want to fundamentally change our energy supply: away from nuclear and fossil fuels towards renewable energies. Their share is expected to rise from currently around 41.5 percent to 65 percent in 2030. Offshore wind energy, generated far out at sea, is an essential building block for the energy supply of the future.

In order to achieve this ambitious goal, the German government has set concrete targets: Offshore wind turbines with a capacity of 6.5 gigawatts (GW) are to be connected to the grid by 2020. By the year 2030 it should even be 15 GW. In purely mathematical terms, this corresponds to the output of 15 conventional large-scale power plants.

enneT has already achieved more than 80 percent of the federal government's targets: The nine completed grid connections in the North Sea already transport more than 5 gigawatts of renewable energy from sea to land. By 2019, TenneT will have completed three more offshore grid connections so that more than 7 GW of offshore wind energy will be available from the North Sea. TenneT plans to put another four grid connections into operation by 2025. This will increase the transmission capacity to over 10 GW by then. Enough to supply around 12.5 million households in Germany with renewable energy. By 2024, TenneT will have invested around 14 billion euros in the offshore grid, making it the largest investor in the energy revolution.  

The legal basis for offshore network expansion in Germany

TenneT has been legally obliged since December 2006 to connect all offshore wind farms in the German North Sea to the power grid. As an expert within the TenneT Group, this task is performed by TenneT Offshore. In addition to planning and design, TenneT Offshore is also responsible for the construction and subsequent operation of grid connection lines at sea to the point on land where the energy is fed into the German grid. 

Overview grid connections Offshore

Project

Capacity
(MW)

Commissioning

In operation

alpha ventus

62

2009

BorWin1

400

2010

BorWin2

800

2015

DolWin1

800

2015

DolWin2

916

2016

HelWin1

576

2015

HelWin2

690

2015

Nordergründe 111 2017

Riffgat

113

2014

SylWin1

864

2015

In construction

BorWin3

900

2019

DolWin3

900

2018

DolWin6 900 2023

Ʃ in operation / in construction

8.032

To be built by 2025

DolWin5 & BorWin5

1.800


State Juli 2018