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 24,500 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.

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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 42 million people.

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We are TenneT

Meet us

Contractor Management

TenneT puts much focus and effort on Contractor Management. We want everyone working for TenneT to return home safely at the end of each day. We want to work together with the best parties to perform our work. Suppliers who, like us, take safety seriously and perform their work extremely safely.

We have decided to integrate safety in our procurement process. Safety is a key consideration in the selection of our contractors and the assessment of their performance. We regard our contractors as our “partners in safety”.

TenneT expects contractors to discuss safety in their own organization, adopt a proactive attitude in improving safety performance throughout the supply chain, and encouraging subcontractors to also optimize their safety performance. We want to engage in an ongoing dialogue with our contractors about learning from experience and pursuing continuous improvement. We strive for a safer working environment for all, with zero accidents.

TenneT publishes the online Contractor Safety Newsletter 4 times a year, with news and developments in the field of Safety


SHE requirements

TenneT has incorporated safety requirements into the procurement process. Read about it here and download the requirements.

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Safety Culture Ladder

A way to increase safety awareness and safety culture is to make use of the Safety Culture Ladder (SCL). The Safety culture ladder is a requirement in the selection phase as described in the 'Safety by Contractor Management' program.

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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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