Aksel S. Tannum


+47 900 22 765


Download vCard


Partner Aksel Tannum specialises in renewable energy and is Head of Haavind’s Renewable Energy practice

He has extensive experience with issues related to power generation, network operations, the energy market and transactions and litigation within the energy sector. Aksel has handled cases for a number of the largest industrial power and energy-related companies in Norway, as well as large international power companies.

Aksel is a ranked attorney in energy law in publications such as Chambers & Partners and The Legal 500 as “Leading Individual”.

A 2022 survey of law firms conducted by Finansavisen rated Haavind’s energy practice as one of the top three in the country, and Aksel Tannum among the top 4 attorneys in “Energy and climate” (Advokatundersøkelsen, 2022).

Aksel Tannum is an exceptional lawyer in the area of electricity and renewable energy, and few match his calibre in the Norwegian market. He is also a very pleasant person to work with and gives advice in a precise yet nuanced way, and in a manner useful to the client. Highly recommended,

The Legal 500_kvadrat

The Legal 500 (2022)

He manages large and complex issues in a clear and to-the-point manner.

Chambers and Partners_kvadrat_svart

Chambers and Partners (2022)



Dispute resolution




  • 2005 -
    Advokatfirmaet Haavind, partner 2013
  • 2000 - 2005
    Ministry of Petroleum and Energy, the legal department, advisor
  • 2000
    Cand.jur., UiB
  • 1998
    Universiteit van Amsterdam