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 23,000 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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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 41 million people.

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We are TenneT

Meet us

Safety at TenneT

TenneT attaches great importance to safety. Every day we are aware of the risks associated with our activities. TenneT wants every employee to return home safely at the end of each working day.

Our safety ambitions

We have described our ambitions in our Safety Vision 2018.  TenneT's safety policy is based on three pillars:

  • Safety Leadership: Our safety performance must reflect our operational excellence. We invest in our managers, we want to be regarded as a safety leader, and we believe that all TenneT employees should assume the role of leaders by working safely themselves.
  • One TenneT: Harmonized and integrated safety standards and approach to safety. We have introduced a uniform system for reporting incidents, and guidelines for conducting incident investigations. Incidents are discussed at the highest management level several times a year.
  • Contractor Management: We seek to optimize the safety performance of our contractors. We do this by carefully selecting contractors based on their safety performance, and by asking them to adopt our way of working in order to achieve our safety goals.


We have drawn up a Roadmap based on our Safety Vision.  The roadmap specifies the actions we are taking in order to realize our goals.

Every incident is one too many

We believe that every incident is one too many. We want the power grid to be available 24/7. Why should we be any less ambitious when it comes to safety? We aim to further enhance our employee's safety awareness by devoting ongoing attention to optimizing our processes. We regard every day as a 'safety day'.

Safety Vision 2018

In the Safety Vision 2018, TenneT describes its ambitions with respect to safety. Our goal is 'zero harm', i.e. no incidents. To achieve this, we have adopted the standards of the petrochemical industry (Oil and Gas Producers, OGPs). Our safety vision is based on three pillars:

  • Safety Leadership
  • One TenneT
  • Contractor Management

Safety is one of the core values of TenneT's strategy. We have defined objectives and activities for each focus area, as set out in the Safety Roadmap.


Safety Roadmap (interactive) (467 KB, pdf, 06/13/2016)

Safety Roadmap (interactive) Download Download
Safety Vision 2018 (155 KB, pdf, 05/31/2016)

Safety Vision 2018 Download Download


Safety Leadership

Our safety performance must reflect our operational excellence. TenneT wants to be regarded as a safety leader, and we believe that all TenneT employees should assume the role of leaders by working safely themselves. We therefore invest in training programmes for our managers and employees.

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Contractor Management

Contractor management is a key element of our Safety Vision 2018. We want everyone working for TenneT to return home safely at the end of each day. TenneT wants to contract top safety performers to contribute to our projects. We are looking for contractors who take safety just as seriously as we do, and who apply the highest safety standards when performing their work.

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Life-Saving Rules

TenneT applies six Life-Saving Rules. These rules are intended to prevent fatal accidents, and are based on the safety standards applicable in the petrochemical industry and a careful analysis of past high-risk incidents at TenneT. TenneT employees or personnel working for our (sub)contractors should never feel pressured to risk their lives for the sake of the company. The six Life-Saving Rules empower employees to say 'No' and stop the work in any situation where a Rule applies.

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