Etha
Arnaud Defrance
Head of Transactions
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Who we serve
Energy & Utilities
Developers, owners and investors in wind, solar, storage, grids, hydropower, water and wastewater.
The customers
Who these customers are
Developers, owners, investors and lenders in wind, solar, battery storage, hydrogen, hydropower and grids, and operators of water and wastewater systems.
Who delivers the work
Companies serving these customers
Envima
Sweden · Linköping, Stockholm
Environmental law, compliance, management systems and sustainability for industry, energy, property, service companies and the public sector.
Natur og Samfunn
Norway · Larvik, Trondheim, Tromsø, Steinkjer
Ecology, nature data, impact assessments and restoration for public bodies, infrastructure owners and developers.
Etha
Finland · Oulu, Vaasa, Helsinki
Development, engineering and transaction advice for wind, solar, battery storage, hybrid, hydrogen and data centre projects.
Project references
Work for these customers
Envima · Sweden · 2026
IGF Biogas: ISO 9001 and ISO 14001 management systems and certification, Sweden
IGF Biogas turns organic residues into local renewable energy and is expanding fast. Envima supports the company through the whole process of introducing an integrated ISO 9001 and ISO 14001 management system and certification.
Westberg · Skellefteå
Skellefteå kommun: Vibration monitoring during water and sewer works, Skellefteå
Vibration monitoring during replacement of water and sewer pipes for Skellefteå municipality.
Natur og Samfunn · Jondal–Mauranger
Statnett: red-listed species survey for a new power line, Jondal–Mauranger
Field registration of red-listed species along a new power line route between Jondal and Mauranger for Statnett.
Natur og Samfunn · Rogaland
Fylkesmannen i Rogaland: bottom fauna and algae surveys in 65 streams, Rogaland
65 streams were surveyed for bottom fauna and algae for the County Governor of Rogaland.
Natur og Samfunn · Orkla · 2018
Orkla river restoration: restoration plans for two oxbow lakes, Orkla
Action plans with cost estimates for restoring two oxbow lakes in the Orkla river system.
Etha · Pieksämäki · 2022
Sarvikankaan Tuuli Oy: Sarvikangas wind farm development, EIA and transaction advice, Pieksämäki
The Sarvikangas wind farm in Pieksämäki covers 2,860 hectares and is planned for 25 turbines and 200 MW. Etha has been involved since the preliminary studies in 2022 and supports development, EIA, land-use planning and the search for investors.
Experts
Our experts
Natur og Samfunn
Gunnar Kristiansen
Seniorrådgiver, naturmiljø
Biodiversity, Nature & Restoration · Planning, Impact Assessment & Permitting
Etha
Jukka Rönnlund
Head of Engineering
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Natur og Samfunn
Amanda Engberg Andersen
Daglig leder
Biodiversity, Nature & Restoration · Planning, Impact Assessment & Permitting
Contact