Energy & Infrastructure

Energy & Infrastructure

Energy and infrastructure projects are major, long-term investments. They include many time-critical phases that need a proactive and comprehensive approach. Power plants, electrical lines or mining projects require many kinds of legal expertise over the course of their lifecycle—from environmental permits and impact assessments to subcontracting and financing agreements and potentially even stock exchange listing.

Energy and infrastructure projects can also have extensive impacts on the development of society. Renewable energy has become more affordable than fossil fuels even on a pure market basis. As the energy revolution proceeds, the challenges will be energy storage, electrical grid balancing and the diversification of energy production. Energy issues touch every company, as energy choices are a reflection of corporate responsibility.

Our experienced experts have advised developers and investors in Finland’s largest and most demanding projects. We can provide tailored solutions for the full range of legal issues in energy and infrastructure projects.

Latest references

We advised UK-based investment company Downing in its acquisition of the entire share capital of Tornionlaakson Voima Oy. Tornionlaakson Voima owns three hydropower plants in the Tengeliönjoki river system – the Portimokoski power plants in Ylitornio, the Jolmankoski power plants in Raanujärvi and the Kaaranneskoski power plants in Sirkkakoski. The power plants produce a total of approx. 45 gigawatt-hours of electricity per year. Tornionlaakson Voima’s daily operations will continue normally, and the transaction will not affect customers. The consummation of the transaction is subject to the approval of the Ministry of Economic Affairs and Employment. Downing has over 35 years’ experience in providing a wide range of investment solutions to the needs of institutional investors, advisers and retail investors. The company manages over £2 billion in assets in both the private and public markets and its current hydro power portfolio includes approx. 50 hydro power plants in the Nordics. 
Case published 27.3.2026
We advised Fingrid Oyj on the Finnish law aspects in the update of a EUR 3,000,000 Euro Medium Term Note programme (EMTN). Notes issued under the programme may be listed on the Irish Stock Exchange. Fingrid operates Finland’s main electricity transmission grid and all significant cross-border transmission connections. The main grid is the backbone of the electricity transmission network, to which major power plants, industrial plants and regional electricity distribution networks are connected.
Case published 17.3.2026
Castrén & Snellman successfully assisted Terrafame Ltd in environmental and water management permit processes concerning the company’s entire operations and the KL1 side rock area, on which the Supreme Administrative Court issued its decision on 12 February 2026 (KHO 366/2026 and 367/2026). The changes made to the decisions of the Vaasa Administrative Court as a result of Terrafame’s appeals, enable the company to implement its new strategy and develop its operations as planned. The decisions of the Supreme Administrative Court brought the nearly ten-year-long permit process to a close.
Case published 20.2.2026
We advise Fingrid Oyj in a transaction in which Ilmarinen Mutual Pension Insurance Company is selling its holding of approximately 20 per cent of the shares in Fingrid to the Finnish State and OP Pohjola Kantaverkko Holding Ky. Fingrid owns Finland’s main electricity transmission grid and all significant cross-border transmission connections. The main grid is the backbone of the electricity transmission network, to which major power plants, industrial plants and regional electricity distribution networks are connected. 
Case published 11.2.2026