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

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Position papers

TenneT produces a range of position papers to explain our vision and position on social and political issues in the electricity sector.


Decarbonising the Energy System (10 MB, pdf, 12/07/21)

Decarbonising the Energy System Download Download
Underground cables and overhead lines (546 KB, PDF, 18/05/16)

Category: Position Papers
Underground cables and overhead lines Download Download
Spatial integration of high-voltage lines and substations (448 KB, PDF, 18/05/16)

Category: Position Papers
Spatial integration of high-voltage lines and substations Download Download
Interconnectors (494 KB, PDF, 18/05/16)

Category: Position Papers
Interconnectors Download Download
Innovation (383 KB, PDF, 18/05/16)

Category: Position Papers
Innovation Download Download
Gas Insulated Lines (488 KB, PDF, 18/05/16)

GIL technology has been around for years and can in highvoltage substations as well as high-voltage connections. At the moment, TenneT only uses GIL technology at highvoltage substations. Currently, a total of around 250 km of GIL connections have been installed around the world, mainly as short-distance, above-ground applications or in tunnels, with only 1 km below ground.

Category: Position Papers
Gas Insulated Lines Download Download
Direct and alternating current (453 KB, PDF, 18/05/16)

TenneT manages a solid, reliable transmission grid. We are responsible for maintaining the present quality standard, also after expansion of the grid. This determines the technical principles governing our decision to use either direct or alternating current.

Category: Position Papers
Direct and alternating current Download Download
Electromagnetic Fields and Human Health (327 KB, PDF, 18/05/16)

Electric and magnetic fields are generated wherever there is electricity. What are electrical and magnetic fields? Do they pose a health hazard? Has the government imposed a maximum on field strength? This position paper provides an overview of the relevant issues.

Category: Position Papers
Electromagnetic Fields and Human Health Download Download


Corporate brochures

TenneT produces a range of corporate brochures to inform stakeholders on our activities and developments in the electricity sector. 

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Financial reports

TenneT publishes integrated reports, including financial statements and key figures, on an annual and semi-annual bases that give an insight into our financial and operational performance.

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Technical publications

TenneT issues a large number of technical publications on both the electricity sector in general as specialised technical issues.

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