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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Again a successful issue of Green Bond TenneT

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  • TenneT successfully issues another Green Bond with very long maturity
  • Today’s EUR 500m Green Bond issue brings total long-term debt in green format to EUR 3bn
  • TenneT largest (corporate) issuer in the Netherlands of green debt

TenneT Holding B.V. (rated A3/A-) today successfully launched and priced another Green Bond issue, a EUR500m (17 year) bond issue with a coupon of 1.25% with the support of three banks, Lloyds Bank, Rabobank and Royal Bank of Scotland.

Investing in green energy

Today’s announcement relates to the issuance of Green Bonds for investments in the transmission of renewable electricity from offshore wind farms to the onshore electricity grid. The following offshore projects are financed with the proceeds:

  • DolWin1 (commissioned 2015): a 165 km HVDC (high voltage direct current) link with 800 MW capacity.
  • SylWin 1 (commissioned 2015): a 205 km HVDC link with 864 MW capacity.
  • DolWin2 (commissioned 2016): a 135 km HVDC link with 916 MW capacity.
  • DolWin3 (commissioning 2017): a 162 km HVDC link with 900 MW capacity.
  • BorWin3 (commissioning 2019): a 160 km HVDC link with 900 MW capacity.
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Jeroen Dicker

Senior Manager Treasury

+31 (0)26 373 26 56

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