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

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News Financial Corporate

TenneT issues first-ever Green Hybrid Bond

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  • EUR 1 billion of proceeds to finance high-voltage grid connections to offshore wind farms
  • Market shows keen interest with an order book of approx. EUR 3 billion 

TenneT Holding B.V. (rated A3/A-) today successfully launched and priced the first-ever green hybrid bond, in an amount of EUR 1 billion with a coupon of 2.995% and a non-call period of 7 years with the support of five banks: Barclays and  Deutsche Bank as (joint structuring advisors and joint bookrunners) and BNP Paribas, HSBC Bank and ING Bank as (joint bookrunners). The hybrid bond has received an instrument rating of Baa3 and BB+ by Moody's and S&P respectively.

Otto Jager, TenneT’s Chief Financial Officer, said: “Today’s inaugural Green Hybrid Bond issue demonstrates our ongoing commitment to green financing instruments and the further development of the green financing market. It provides an excellent way to finance our green investment portfolio, which facilitates the transition to renewable energy, while supporting our credit ratings at the same time."

Investing in green energy

TenneT’s investments in offshore wind energy projects across the Netherlands and Germany are expected to total EUR 9 to 11 billion over the next 10 years. In the period up to 2019, TenneT is realizing over 7,000 megawatts (MW) of connection capacity for offshore wind farms in the German sector of the North Sea, transmitting electricity equivalent to the annual power consumption of approx. 7 million households. By 2023,  TenneT expects to have realized 3,500 MW of connection capacity in the Dutch sector of the North Sea, corresponding to the annual power consumption of close to 3.5 million households. 

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Jeroen Brouwers

Media Relations

+31 (0)26 373 26 00


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