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 over 22,500 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. 


Energy transition

Wind turbines and solar panels are the physical signs of consumers’ growing desire for clean, renewable energy.

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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 41 million people.

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We are TenneT

Meet us

We are TenneT

We strive to ensure a reliable and uninterrupted supply of electricity
in our high-voltage grid for some 41 million people.

Meet us
Our grid

We are constantly working on improving our high-voltage grid.

See our projects

Dealing with the challenges in the energy market.

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Facts & figures related to TenneT facilitating the market.

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Latest news

The North Sea "wind harvest" of the first half of 2018 exceeds the first half of 2017 by more than five percent


TenneT sees optimisation potential through the tendering of free capacities for offshore grid connections
  • North Sea wind with 8.17 terawatt hours is...

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TenneT provides free access to valuation tool for large-scale electricity storage


Free Electricity Storage Valuation tool provides companies with insight into business case for large-scale electricity storage

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TenneT awards contract for offshore platforms to Petrofac


Following a European tender procedure, TenneT TSO B.V. has selected Petrofac to construct an offshore transformer station (platform) for the Hollandse...

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Annual Report 2017

TenneT as an employer

Working at TenneT

Are you eager to work at the leading edge of the European energy sector? TenneT is looking for enthusiastic professionals who wish to push back frontiers and broaden their horizons.

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Corporate Social Responsibility

We aim to be among the best CSR-performing electricity transmission operators in Europe.

We take the responsibility to maintain grid stability and enhance the high-voltage infrastructure, enabling the large-scale use of renewables. Beyond contributing to reducing the overall carbon footprint of the Netherlands and Germany by facilitating the transition to renewable energy, we also taking measures to limit and compensate for our own impact.

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Our projects

Randstad 380 kV Noordring (Netherlands)

TenneT is constructing the Randstad 380 kV high-voltage connection to make sure the grid is “future-proof”. 

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SuedOstLink (Germany)

Information on the HGÜ-Connection from Sachsen-Anhalt to Bayern.

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Hollandse Kust (Netherlands)

TenneT is planning to build two offshore platforms (“Alpha” and “Beta”) near the offshore wind farms to be constructed off the coast of South-Holland.

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Latest tweets


#TenneT eerste partner in Electrical Sustainable Power Lab (ESP Lab) @tudelft Zie ook: t.co/O3hxwtizRS - 5 d

Kijk, dat is mooi nieuws! t.co/lz1ZuzX078 - 6 d

#TenneT contracteert #Petrofac voor platformen Net op Zee, zie t.co/UNRrAsGvYc - 11 d

7 enthousiaste @TenneTTSO collega's hebben het record van 25 keer overspelen zitvolleybal van @JCFoundation verbroken. Wij hebben 31 keer overgespeeld. We dagen @KPN en @DNVGL_NL uit om ons record te verbreken. Gaan jullie de challenge aan? #WorldSittingVolley #kantoorchallenge t.co/iR2sJXjPXj - 22 d

#TenneT is één van de Nederlandse koplopers in digitale transformatie, blijkt uit onderzoek van het #HetFinancieeleDagblad en #VlerickBusinessSchool bij de grootste 200 bedrijven. #digitaltransformation #digitaletransformatie t.co/qJ5XC6oVTQ t.co/9VOjmqqh2o - 26 d

De verbinding is inmiddels weer in bedrijf genomen. t.co/7YKlcrwcQa - 34 d

Door uitval verbinding #stroomstoring #eindhoven. excuus voor het ongemak. De oorzaak wordt onderzocht. - 34 d

innogy en TenneT onderzoeken toekomstige aansluitingen op internationale Wind Power Hub. t.co/v4jfIntZ3n t.co/TGsXCQ4kMF - 38 d

TenneT en Vattenfall onderzoeken mogelijkheden voor verbinding tussen offshore-stations in Nederland en Verenigd Koninkrijk. t.co/xq16Fr9Kws t.co/CCe3UiNyYF - 38 d

Een prachtig, mooi en verdiend moment voor onze CEO van #TenneT Mel Kroon: t.co/MNLxyHktxz t.co/FEG0Y8UFWZ - 51 d

#WaterstofCoalitie: #GroeneWaterstof hoort thuis in het nieuwe #klimaatakkoord. t.co/JWPgy9Y9XX t.co/4SBA5UekIu - 51 d

TenneT issues EUR 1.25 billion of Green Bonds. t.co/vKbAVtq158 - 59 d

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