Etha
Arnaud Defrance
Head of Transactions
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Customer need
Assess environmental risks before investing
You are about to acquire, finance or develop a site, a property, an energy project or a company. Contamination, permit risk, nature values and expected yield can change the value or the timeline. We carry out environmental and technical due diligence so you know what you are committing to.
Typical questions
Questions we help answer
- Is there contamination or another environmental liability on the site?
- Will the project realistically get the permits it needs?
- What energy yield can the wind or solar project deliver?
- What should the transaction or valuation account for?
What this covers
Planning, Impact Assessment & Permitting
- Environmental site and option screeningEtha
- Environmental constraints mappingEthaNatur og Samfunn
- Environmental due diligenceEthaEnvima
Ground, Hydrogeology & Water
- Flood and drought risk
Contaminated Land, Materials & Remediation
- Contaminated-asset liability assessment
7 services
Services, by company
Envima · Sweden2 services
Natur og Samfunn · Norway1 service
Etha · Finland4 services
Energy yield assessments
Wind and solar resource and production modelling.
EthaFinlandTransaction advisory
Sell-side, buy-side, financing and PPA advice.
EthaFinlandValuation and financial modelling
Valuation and financial models for energy projects and portfolios.
EthaFinlandProject advisory and due diligence
Technical, legal and environmental due diligence for buyers, sellers and lenders.
EthaFinlandCompanies involved
Who delivers the work
Related projects
Examples from our companies
Etha · Finland
Ilmatar Energy: technical due diligence of wind and solar projects, Finland
Etha reviewed Ilmatar's portfolio of 27 wind and solar projects with about 3,500 MW, supporting debt financing of EUR 144.5 million from a major European debt investor.
Etha · Lestijärvi
Kymppivoima, Oulun Energia, Kuopion Energia: technical transaction advice for the Lestijärvi wind farm, Lestijärvi
Etha acted as technical advisor for the buyers – Kymppivoima, Oulun Energia and Kuopion Energia – when OX2 sold the 455 MW Lestijärvi wind farm, Finland's largest.
Etha · Pieksämäki
Helen and Ålandsbanken Wind Power Fund: technical due diligence and contract review for the Niinimäki wind farm, Pieksämäki
Etha provided full-scope technical due diligence and contract review for Helen and Ålandsbanken's wind fund when they acquired the 145 MW Niinimäki wind farm in Pieksämäki from OX2.
Insights
From our specialists
News · 7 September 2026Etha expands Transaction Advisory services to Sweden
Etha 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 · 17 March 2026Etha advises on securing financing for one of Finland’s most significant battery energy storage projects, reaching start of construction this spring
Aurinkokarhu and Prime Capital have taken a significant step toward advancing Finland’s energy transition by reaching an agreement on the continued development of the Tuovila BESS project which is set to become Finland's first 125 MW, 4‑hour Battery Energy Storage System. Located in Mustasaari near Vaasa, the project marks a significant milestone for the region’s clean‑energy ambitions, with Etha
Investment and due diligencePlanning and permitting
Experts
Our experts
Etha
Lina Kamlin
Team Leader, Project Advisory Services
Sustainable Energy Project Enablement · Planning, Impact Assessment & Permitting
Contact