• 2017

    Sale of Tysnes kraftlag to BKK

    Jens heads the Thommessen team assisting Tysnes Kraftlag in the sale of the company's business to BKK. In return Tysnes Kraftlag will become an owner of BKK. Thommessen has assisted Tysnes Kraftlag at all levels of the process, including with conversion of the company, license applications and contracts, and will continue to assist in the merger process.

  • 2017

    Fjærland Kraft AS

    Jens heads Thommessen's team that assists KGAL GmbH & Co. KG with the purchase of Fjærland Kraft AS. Fjærland kraft is a subsidiary of Sognekraft AS, which holds six hydro power plants located at Fjærlandsfjorden in Sogndal municipality, with a total annual production of around 116 GWh. KGAL will take over Fjærland Kraft AS when all six hydro power plants have been completed.

Work experience

  • 2011
    Admitted to the Supreme Court of Norway
  • 2007–
    Partner, Oslo office, Thommessen
  • 2004–2006
    Senior Associate, Oslo office, Thommessen
  • 2002
    Admitted to the bar
  • 2000–2003
    Associate, Oslo office, Thommessen
  • 1998–1999
    Research Assistant, Scandinavian Institute of Maritime Law, Petroleum Law Dept, University of Oslo


  • 2000–
    Candidate in Jurisprudence, University of Oslo
  • 1997–
    German for lawyers, University of Oslo


  • Co-author of the treatise on the Norwegian Energy Act (published in Norwegian: “Energiloven med kommentarer”)


  • Author of the book “Revenue Cap Regulation of Electricity Distribution Companies” (published in Norwegian: “Inntektsrammeregulering av kraftnettselskaper”