
Etha
Arnaud Defrance
Head of Transactions
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Capability
Make environmental constraints visible early and build a clear route through planning and permitting.
The problem
A clearer view of feasibility and material environmental risk
Evidence that supports design and investment decisions
A coordinated, defensible route through authority processes
14 services
Impact assessments for zoning plans (roads, rail, wind, quarries, landfills, housing) using the V712 method.
Natur og SamfunnNorwayLicence applications, impact assessments and build-phase advice for wind and hydropower.
Natur og SamfunnNorwaySupport for municipalities preparing a plan for nature diversity.
Natur og SamfunnNorwaySite, permit and energy sourcing support for data centres.
EthaFinlandFrom idea to ready-to-build, including land studies, EIA, land-use planning, permits to building permit, stakeholders and investor search.
EthaFinlandAdvice on repowering existing wind and solar assets.
EthaFinlandDismantling plans, permits, recycling of components and site restoration.
EthaFinlandTechnical, legal and environmental due diligence for buyers, sellers and lenders.
EthaFinlandDevelopment of battery energy storage projects.
EthaFinlandDevelopment of hydrogen production projects.
EthaFinlandLayout optimisation plus noise, shadow flicker, photomontage, visual impact, bird collision and glare studies.
EthaFinlandRelated projects

Envima · Linköping · 2025
Hjulsbro Steel in Linköping makes prestressing strand used in bridges, railway sleepers and tunnels. Envima produces annual LCAs and EPDs for three products and supports permits and sampling, ISO 14001 and sustainability reporting.

Natur og Samfunn · Vestvågøy · 2022
Collection of baseline data on nature diversity and preparation of the municipal sub-plan with its action plan. The work covered habitat sites, water bodies, functional areas, red-listed and alien species, plus field visits.

Etha · Pieksämäki · 2022
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.
Insights

Knowledge · 24 September 2026Digitala produktpass (DPP) blir ett krav stegvis, en produktgrupp i taget. På sikt kan nästan alla fysiska produkter som säljs i EU omfattas, men kravet gäller först när EU har tagit fram regler för just den produktgruppen. Först ut är batterier i februari 2027. För industrin är stål och aluminium de första stora grupperna. Hur
Monitoring and compliancePlanning and permitting

News · 7 September 2026Etha is expanding its Transaction Advisory services to Sweden with its first transaction mandate in the country, marking an important step in growing its transaction business in the Nordic market.
Investment and due diligence

News · 24 August 2026Etha is supporting SENS in advancing the Underground Pumped Hydro Storage project that explores the potential of the decommissioned Pyhäsalmi mine for large-scale energy storage.
Planning and permitting
Experts

Etha
Head of Transactions
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Natur og Samfunn
Seniorrådgiver, naturmiljø
Biodiversity, Nature & Restoration · Planning, Impact Assessment & Permitting

Etha
Head of Engineering
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Natur og Samfunn
Daglig leder
Biodiversity, Nature & Restoration · Planning, Impact Assessment & Permitting
Contact
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