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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Innovation

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 23,000 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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E-Insights

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. 

E-Insights

E-Insights

Facts & figures related to TenneT facilitating the market can be found here.

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Company

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

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Structural characteristics

Publication of the structural characteristics in accordance with § 27 Para. 2 of the Ordinance on Electricity grid Charges (StromNEV)

 

The information is based on data from TenneT TSO GmbH, TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW), TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6) and TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3).

31st of December, 2018

1. Circuit length in km

  cable overhead line
HöS HS HöS HS
total 1 1.877 735 10.529 40
TenneT TSO GmbH total 852 75 10.529 40
interconnected power system 18 8 10.529 40
Offshore connection Alpha Ventus (TOG)   67    
HelWin 1 (TOG) 156      
Nordergründe (TOG) 30      
Riffgat (TOG) 77      
SylWin 1 (TON4) 373      
DolWin 1 (TON4) 198      
TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW) total 484      
BorWin 1  202      
BorWin 2  282      
TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6) total 340      
HelWin 2  148      
DolWin 2  192      
TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)

total

DolWin 3

201

201

 


2. Installed electrical output of the transformer levels in MVA

  HöS/HöS HöS/HS HS/HS
total 1 26.881 44.470 75
TenneT TSO GmbH total 22.982 44.470 75
interconnected power system 20.400 44.470  
Offshore connection Alpha Ventus (TOG)     75
HelWin 1 (TOG) 603    
Nordergründe (TOG) 120    
Riffgat (TOG) 120    
SylWin 1 (TON4) 901    
DolWin 1 (TON4) 838    
TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW) total 1.279    
BorWin 1  447    
BorWin 2  832    
TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6) total 1.673    
HelWin 2  725    
DolWin 2  948    
TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)

total

DolWin3

947

947

 


3. Annual electrical energy obtained in kWh 

  HöS HöS/HS
total 1 54.447.779.224 59.144.939.048
TenneT TSO GmbH total 54.073.104.71659.144.939.048
interconnected power system    
Offshore connection Alpha Ventus (TOG)    
HelWin 1 (TOG)    
Nordergründe (TOG)    
Riffgat (TOG)    
SylWin 1 (TON4)    
DolWin 1 (TON4)    
TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW) total 224.393.092  
BorWin 1     
BorWin 2     
TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6) total 139.816.772  
HelWin 2     
DolWin 2     
TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)

total

DolWin 3

10.464.644

 

 


4. Number of tapping points

  HöS HöS/HöS HöS/HS HS HS/HS
total 1 160 10 176 7 1
TenneT TSO GmbH total 142 5 176 7 1
interconnected power system 127   176 6  
Offshore connection Alpha Ventus (TOG)       1 1
HelWin 1 (TOG) 4 1      
Nordergründe (TOG) 1 1      
Riffgat (TOG) 1 1      
SylWin 1 (TON4) 6 1      
DolWin 1 (TON4) 3 1      
TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW) total 6 2      
BorWin 1  2 1      
BorWin 2  4 1      
TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6) total 8 2      
HelWin 2  2 1      
DolWin 2  6 1      
TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)

total

DolWin 3

4

4

1

1

 


5. Number of inhabitants in the grid area

only relevant for low voltage

6. Covered area of the grid area of TenneT TSO GmbH

13.637 km²

7. Geographical area of the grid area of TenneT TSO GmbH

138.780 km²

8. Number of tapping points with a quarter-hourly recording power measurement or counter reading measurement and the number of other tapping Points

Company name
Number of withdrawal points with RLM
Number of withdrawal points with SLP
TenneT TSO GmbH2860
TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW)60
TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6)80
TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)40


9. Basic responsible measuring point Operator

Company name
Name of the measuring point operator with basic responsibility
TenneT TSO GmbHTenneT TSO GmbH
TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW)TenneT Offshore 1. Beteiligungsgesellschaft mbH (TOBW)
TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6)TenneT Offshore 9. Beteiligungsgesellschaft mbH (TON6)
TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)

 

1 The total value summarises the data of the following four network operators: TenneT TSO GmbH, TenneT Offshore 1. Beteiligungsgesellschaft mbH, TenneT Offshore 9. Beteiligungsgesellschaft mbH and TenneT Offshore Dolwin 3 GmbH & Co KG (DOL3)

2 Die installierte Leistung der Umspannebenen entspricht bei Offshore AC-Netzanschlusssystemen der Transformatorleistung, bei Offshore DC-Netzanschlusssystemen der landseitigen Umrichterscheinleistung auf Basis der maximalen landseitigen Blindleistung. Angegebene Leistungen sind Nominalleistungen.

3 The number of tapping points in offshore grid connection systems for one grid level (e.g. ESO) corresponds to the number of metering points (and thus the number of circuits) per offshore wind farm. The number of taps for one transformer level (e.g. EH/ EH) corresponds to the number of shore-side transformers for offshore AC grid connection systems and the number of shore-side DC converters for offshore DC grid connection systems.

Structural characteristics include installations in operation. Plants that were out of operation as of December 31, 2018 due to conversion or upgrading measures are not included in the indicated quantity structures.