Diederik specialises in the development, financing, construction, and acquisition of large-scale energy and infrastructure projects. He has broad domestic and international experience advising clients on all aspects of the value chain, including M&A, large-scale projects and corporate, finance, and commercial matters. Diederik has a particular focus on emerging technologies (such as CCUS and hydrogen), as well as renewable energy, oil & gas, LNG, ports & terminals, and nuclear sectors. He forms part of De Brauw's steering committee for energy and infrastructure matters. Diederik’s key clients include market-leading project sponsors and developers, infrastructure and energy funds, governments, and state-owned entities.

In 2016, Diederik was seconded to the global LNG team of Vopak. He has also practised law at Slaughter and May in London and Hong Kong, and at De Brauw in China.

Recent highlights include advising:

  • Gasunie on the development of its national hydrogen backbone, including the hydrogen backbone in the Rotterdam Port Area
  • Porthos and its shareholders Port of Rotterdam, Gasunie and EBN on the development of the Porthos CC(U)S project in the Rotterdam Port Area
  • Ørsted on the approximately EUR 1.375 billion sale of a 50% interest in the Borssele 1 and 2 offshore wind farms to NIBM
  • PALLAS on the procurement, construction, and financing of a new nuclear reactor and nuclear health centre in Petten, the Netherlands
  • A leading international infrastructure fund on its bid to acquire a stake in the Hollandse Kust zuid offshore wind farm
  • Gate LNG terminal on the transfer of a customer relationship from Ørsted to Glencore
  • Vopak as lead counsel on various international greenfield and brownfields transactions, including on the acquisitions of stakes in FSRU based LNG import terminals in Colombia and Pakistan


  • Profession

    Advocaat, admitted to the Bar in the Netherlands in 2007

  • Languages

    Dutch, English

  • Education

    Erasmus University of Rotterdam

    National University of Singapore

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