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 22,000 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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Supervisory Board

The rapid growth in demand for renewable energy, and its integration into a balanced and stable electricity grid, requires extensive investments and carefully considered decisions. The Supervisory Board helps to ensure TenneT makes the right decisions by overseeing and advising the Executive Board.

A.W. (Aad) Veenman (1947)

Chair Supervisory Board / Member Remuneration and Appointment Committee / Member Audit Committee

Nationality: Dutch

Initial appointment: 9 March 2005
Expiry third term: 9 March 2017

Principal position:
  • Former President N.V. Nederlandse Spoorwegen
Other positions:
  • Chair Supervisory Board and Chair of the Audit and Risk Committee Achmea B.V.
  • Chair Economic Cluster Logistics

P.M. (Pieter) Verboom (1950)

Vice-Chair Supervisory Board / Chair Audit Committee

Nationality: Dutch

Initial appointment: 18 September 2012
Expiry second term: 18 September 2020

Principal position:
  • Former CFO RFS Holland Holding 
  • Former Executive vice president and CFO Schiphol Group
Other positions:
  • Chair Supervisory Board and Member of the Audit Committee and Remuneration Committee Ampelmann Operations B.V.
  • Chair Curatorium Master Register Controllers and Advisor Programme 'The new CFO' (Erasmus University Rotterdam)
  • Expert lay member of the Dutch Enterprise Court
  • Member of the Advisory Board of NIBC

S. (Stephanie) Hottenhuis (1965)

Member Supervisory Board / Chair Remuneration and Appointment Committee

Nationality: Dutch

Initial appointment: 1 September 2013
Expiry second term: 1 September 2021

Principal position:
  • Member Executive Board Arcadis N.V.

R.G.M. (Rien) Zwitserloot (1949)

Member Supervisory Board / Member Strategic Investments Committee

Nationality: Dutch

Initial appointment: 24 November 2010
Expiry second term: 24 November 2018

Principal position:
  • Former CEO Wintershall AG
Other positions:
  • Member Supervisory Board Royal VOPAK N.V.
  • Member Supervisory Board Amsterdam Capital Trading Group B.V.
  • Member Supervisory Board Vroon B.V.

L.J. (Laetitia) Griffith (1965)

Member Supervisory Board / Member Remuneration and Appointment Committee 

Nationality: Dutch

Initial appointment: 1 July 2015
Expiry first term: 1 July 2019

Principal position:
  • Former State Councillor in the Advisory Division of the Dutch Council of State
Other positions:
  • Vice-chair Supervisory Board KPMG
  • Chair Supervisory Board Holding Nationale Goede Doelen Loterijen
  • Chair Nederlandse Veiligheidsbranche
  • Member board VNO-NCW
  • Member board Nederlands Filmfonds


Profile of the Supervisory Board (28 KB, pdf, 05/23/2016)

Category: Governance
Profile of the Supervisory Board Download Download
Retirement rota (45 KB, pdf, 11/01/2017)

Category: Governance
Retirement rota Download Download
Audit Charter (70 KB, pdf, 04/19/2017)

Audit Charter Download Download
Rules governing the Supervisory Board (130 KB, pdf, 12/13/2017)

Rules governing the Supervisory Board Download Download