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 23,500 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.

To Offshore Outlook 2050
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. 

To transparency pages

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

Meet us

Profit targets

Our ambition concerning profit is connected to one specific United Nations Sustainable Development Goal (SDG). The table below shows how our sustainable development is both transparent and measurable. Unless stated otherwise, the following tables shows aggregated data for the Netherlands and Germany.


Profitability and return on capital are important for TenneT to remain attractive to capital providers and be able to finance our business and anticipated growth. Our profit ambition and investments contribute to SDG 7, which seeks to ensure access to affordable and clean energy for all.

Long-term goalsStatus at the end of 2018Status at the end of 2017Status at the end of 2016
Return on Invested Capital (ROIC)ROIC ≥ 4,1% *)

Green financing (EUR billion)N/A6.45.03.0

*) Our ROIC target is based on an average of the long-term return on capital determined by regulation

Further information

TenneT has played an active role in the green finance market over the past three years. Our use of green financing is a logical step for us as we work to connect society to a sustainable and reliable supply of electricity. Green financing instruments are an important tool for financing projects with clear
environmental benefits, such as connecting renewable energy infrastructure. This is particularly valuable as our industry faces the challenge of financing the transition to renewable energy.

Read our Green Finance Report 2018



We contribute to society and work on creating the best possible environment for our staff and the most positive impact possible for those affected by our work.

Read more about our People Targets


We are committed to the environment, which means we minimise and compensate for our impact on the planet wherever possible.

Read more about our Planet Targets