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.

Read more
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 24,500 kilometres of high-voltage lines, we cross borders and connect countries.

Explore our grid

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.

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

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.

Read more

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.

Explore our company

We are TenneT

Meet us

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.

What you can do

At TenneT we work hard to increase safety awareness. We do so by conducting campaigns, providing training, organizing special events for our contractors, investigating incidents and publishing Safety Moments, organizing Safety Walks by management, and presenting the TenneT Safety Award. All these activities are aimed at making TenneT employees and personnel working for our contractors aware of the contribution they can make to ensuring everyone's safety.

Taking personal responsibility for safety is referred to as 'Safety Leadership'.

Safety Moment

An incident may prompt TenneT to issue a ‘Safety Moment’, describing what has happened and any measures that have been taken. Safety Moments are intended to inform TenneT staff and contractors, and are unrelated to any incident investigation or the findings of such an investigation. If you would like to receive Safety Moments, please send an e-mail to safety(at)tennet.eu.

Safety Walks

All TenneT managerial staff conduct so-called 'Safety Walks'. These walks are held on construction sites, during the performance of maintenance work, and at our offices. The purpose of a Safety Walk is to have an open discussion about safety in order to increase safety awareness.

TenneT's VCA/SCC-certified units (Grid Service Netherlands and Large Projects Netherlands) are already accustomed to performing workplace inspections (WPIs). TenneT's Safety Vision 2018 stipulates that all TenneT managerial staff must conduct Safety Walks.

Objectives of Safety Walks

  • Contributing to safety awareness at TenneT
  • Gaining insight into activities, risks and any points for improvement on-site
  • Gaining insight into on-site safety during the performance of daily work
  • Challenging employees by having an open discussion about possible safety risks and control measures
  • Demonstrating Safety Leadership
  • Talking openly about safety


Safety ambitions

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.

Read more

Contractor Management

Contractor management is a key element of our Safety Vision 2022. 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.

Read more

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.

Read more