LAWYER PROFILE

Ole Christoffer Ellingsen

Europe 2026

Advokatfirmaet Thommessen AS

Ranked in 1 practice area

Energy: Renewables

Norway

1 year ranked

About

Provided by Advokatfirmaet Thommessen AS

Practice Areas

Ole Christoffer assists with project development, litigation and transactions across several fields of expertise. Within renewable energy and infrastructure, he advises utilities, grid companies, hydro power producers, wind power producers, district heating companies and fiber companies. He also works extensively with power intensive industries, including aluminum producers, data centers, hydrogen plants and battery production facilities. In the real estate sector, his work covers housing development projects, office buildings and logistic properties, among others.

In addition, Ole Christoffer has extensive experience within the field of expropriation and environmental law, both in connection with expropriation and appraisal processes and in connection with pollution and environmental issues in general. He has been a research assistant at the University of Oslo, where he wrote his master's thesis in Environmental Law.

Career

2022- Partner, Oslo office, Thommessen; 2019-21 Managing Associate, Oslo office, Thommessen; 2015-18 Senior Associate, Oslo office, Thommessen; 2011-14 Junior Associate, Oslo office, Thommessen.

Professional Memberships

Norwegian Bar Association

Publications

"Private individual rights for enforcement of public-law pollution standards", Department of Public Law Series 02/2012, Environmental Law No 38.

Education

University of Oslo

Master of Laws

2006 - 2011

Chambers Review

Provided by Chambers

Chambers European Guide

Energy: Renewables - Norway

Up and Coming

Individual Editorial

Ole Christoffer Ellingsen advises on the development of hydrogen production facilities in addition to handling PPAs and grid connection matters related to data centres. He also assists with hydropower plant mandates, including watercourse concession issues.

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Strengths

Provided by Chambers

Ole Christoffer Ellingsen is very quick to respond. He is a hands-on lawyer who can be reached at any time of day.
Energy: RenewablesChambers European Guide
He always comes to a solution.
Energy: RenewablesChambers European Guide
He is a brilliant lawyer.
Energy: RenewablesChambers European Guide
Ole Christoffer Ellingsen is an amazing help.
Energy: RenewablesChambers European Guide
Ole is excellent to work with. He is a pleasant person who provides outstanding, timely assistance. He follows up diligently and frequently acts as a sparring partner on matters within the renewable energy sector.
Energy: RenewablesChambers European Guide