Loyens & Loeff

Thomas Chellingsworth

Visitors address

Woluwe Atrium
Neerveldstraat 101-103
B-1200 Brussels

Thomas Chellingsworth

  • Attorney at law
  • Local Partner Loyens & Loeff Belgium

Thomas heads Loyens & Loeff’s Energy & Utilities and Competition & Regulatory Teams in Belgium. He is also a member of the Corporate and M&A Practice Group and the Projects Team.

His practice focuses on the energy sector, including in particular renewable energy projects (onshore and offshore wind, biomass/biosteam), security of supply (capacity mechanisms, strategic reserves), grid tariffs, subsidy mechanisms (such as green certificates and, including State aid issues), domain concessions and licences, district heating, contracts (including corporate PPAs and FIDIC agreements), litigation and judicial review (Council of State, Markets Court,Brussels Court of Appeal, Constitutional Court).

Thomas also has considerable experience in the field of competition law, with over thirty merger filings with the European Commission, the Belgian and the Dutch competition authorities.

He is the author of several articles and publications about energy and competition law. 

Thomas speaks annually at the 'Energy Law Capita Selecta' conference and contributes to the Energy Law Annual.

Chambers & Partners Europe (Energy) and Legal 500 EMEA (Belgium, Energy) recognise him as leading individual.
He is also mentioned in A Word About Wind’s Power List.

Thomas has been a member of the Brussels Bar since 1997.


Thomas holds a Master in Law from the Universiteit Antwerpen (Belgium, 1996), an LL.M. in European Law from the Universiteit Gent (Belgium, 1997) and a Postgraduate Diploma in Economics for Competition Law from King’s College London (United Kingdom, 2009).


Dutch, English, French