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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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 42 million people.

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We are TenneT

Meet us


All press releases and updates.

Investments rising to EUR 4-5 billion a year in the next years - TenneT scaling up for European energy transition

07/31/2020 08:45:00 AM News German Dutch

• TenneT invested EUR 1,408 million in the Dutch and German high-voltage grids in the first half of 2020, a 30% increase compared to the first half of 2019 (EUR 1,094 million). • Underlying…

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Noordzee onderhandelaarsakkoord goed voor energietransitie

02/10/2020 09:22:00 AM News Dutch

Het nu bereikte onderhandelaarsakkoord voor de Noordzee is belangrijk voor een breed gedragen voortgang van de energietransitie in Nederland. TenneT ziet de Noordzee als een belangrijke bron van…

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TenneT to invest an additional €215 mio in high voltage grid in the north of the Netherlands

10/10/2019 11:20:57 AM News Dutch

TenneT is planning to invest an additional €215 million in connection capacity for two GigaWatts (GW) of solar and wind farms in the north of Netherlands. Two new 380 kV/110 kV high voltage…

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TenneT congratulates Vattenfall

07/12/2019 03:14:11 PM News Dutch

TenneT warmly congratulates Vattenfall as the winner of the tender for the offshore wind farm Hollandse Kust (zuid) 3 and 4. This is another wonderful confirmation of the success of the Dutch…

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TenneT successfully closes a EUR 500 million Green US Private Placement

01/24/2019 12:55:28 PM News Dutch

• TenneT first Dutch Green USPP issuer • Market showed keen interest with an order book of almost EUR 1bn • Further diversification of TenneT's investor base and funding sources TenneT first Dutch…

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Electricity plant in port of Rotterdam ready to act as the 'starter motor of the south'

10/04/2018 01:34:03 PM Dutch

A recovery facility for the high-voltage grid has been put into operation at the gas-fuelled Enecogen electricity plant in the port of Rotterdam. This facility – equivalent to an enormous emergency…

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