Konsta Peussa

Associate, Master of Laws

Services

  1. Environment, Energy & Green Transition

Contact details

I advise our clients in matters related to environment, energy and natural resources. My work covers a broad range of environmental and regulatory matters, and I have gained solid experience in renewable energy transactions and projects.

I graduated with a Master of Laws from the University of Helsinki in 2022. Prior to graduating, I gained experience at Castrén & Snellman as a trainee, as well as at other law firms, a software company and the police department. These experiences gave me a strong foundation across different legal and business environments before focusing on environmental and energy law.

Latest references

Rabobank – Financing arrangement for Olana Energy
Castrén & Snellman acted as legal advisor to Coöperatieve Rabobank U.A. in its capacity as sole lender and hedging bank providing senior financing to Olana Energy for a Battery Energy Storage Systems (BESS) portfolio in Finland. Our advice included preparing a legal due diligence report on the projects as well as advising on the negotiation of the various finance and project agreements. Olana Energy is a management-owned fast-growing independent power producer with an international pipeline of over 1 GW. The diversified portfolio of assets ranging from 5 to 30 MW reinforces the Finnish grid at a granular level.
Case published 18.11.2025
KoBold Metals – Earn-In Agreement with Aurion Resources
We advised KoBold Metals on the Finnish legal and tax aspects related to its earn-in agreement with Aurion Resources. Under the agreement, KoBold (through its wholly owned subsidiary KoBold Exploration Finland Oy) can earn an undivided 75% interest in commodities discovered (other than any discoveries that are predominantly gold or silver), by incurring USD 12 million in exploration expenditures on or before the fifth anniversary of the date of signing the agreement. The exploration area covers approximately 35 km2 in Aurion’s 100% owned 160 km2 Risti Property in Sodankylä, Finland Following satisfaction by KoBold of the earn-in requirements, a joint venture will be established with KoBold owning 75% and Aurion 25%. KoBold Metals Company is a US-based exploration and mining company, supported by high profile investors such as Breakthrough Energy Ventures, Andreessen Horowitz, and Equinor. It combines expertise in geosciences with artificial intelligence, machine learning, and data science to improve and accelerate the exploration process in search of the critical minerals necessary for the global energy transition.
Case published 26.3.2025
Pernod Ricard – Sale of local Nordic beverage brands to Hartwall
We acted as Finnish counsel to Pernod Ricard in the sale of a portfolio of local Nordic brands to Oy Hartwall Ab, an affiliate of the Danish group Royal Unibrew. Pernod Ricard is a worldwide leader in the spirits and wine industry. The local portfolio of brands includes spirits, liqueurs and Finnish wine brands, the best-known being the liqueur Minttu, along with their related production assets based in Turku, Finland.
Case published 21.10.2024
BHP – Alliance agreement with Kingsrose Mining Limited
We acted as the Finnish legal advisor for BHP in connection with an exploration alliance agreement entered into between BHP and Kingsrose Mining Limited under which BHP (through a wholly owned subsidiary) will provide funding for regional mineral exploration across areas of interest in Finland. As part of the arrangement announced on 22 May 2024, BHP and Kingsrose entered into two exploration alliance agreements, focusing on nickel and copper exploration in specified regions in Finland and Norway. In Finland, the alliance agreement covers Kingsrose’s four exploration reservations at the Central Finland project in the Kotalahti Nickel Belt, a 400 kilometre long greenstone belt which hosts the past producing Hitura, Kotalahti and Enonkoski nickel mines. The alliances follow from Kingsrose’s successful participation in the BHP Xplor program, a global accelerator program targeting innovative, early-stage mineral exploration companies to find the critical resources necessary to drive the energy transition. BHP is the largest mining company in the world by market capitalisation, producing essential commodities through its assets, including iron ore, metallurgical coal, copper and nickel, and moving into potash.
Case published 4.7.2024
Kemijoki – Major construction project for pumped storage hydropower plants that enable safe energy transition
We are advising Kemijoki Oy as the company is exploring the possibility of building pumped storage hydropower plants as part of its existing production infrastructure in Northern Finland. The socially significant project enables safe energy transition and would have a significant role in mitigating climate change. The 200–600 MW pumped storage power plants explored by Kemijoki Oy would increase the regulating capacity of hydropower in Finland by up to 4,000 MW. The increase is exceptionally significant since Finland’s current hydropower capacity, which is mainly regulatable, is 3,100 MW. The scale of the project is also reflected in the fact that the nominal capacity of the company’s largest operating hydropower plant, Petäjäskoski hydropower plant, is 182 MW. The scale of the possible investment totals up to 3 billion euros. The production of weather-dependent wind and solar power will increase significantly in Finland. This requires ensuring sufficient production capacity that can be regulated, and hydropower is the most important form of such production. The overall generating capacity of pumped storage hydropower is on the rise in Europe and elsewhere in the world, reducing the need of fossil fuels. The pumped storage plant consists of two reservoirs that will help the plant to produce power when demand is high by running water through turbines down from the upper reservoir to the lower reservoir. When demand for electricity is low, the pumped storage plant will pump water back up into the upper reservoir.
Case published 29.5.2023
G&W Electric – Acquisition of Safegrid
We advised G&W Electric with its acquisition of Safegrid Oy, a leading provider of intelligent grid monitoring solutions based in Finland. The acquisition accelerates G&W Electric’s long-term strategy to integrate intelligent monitoring and predictive analytics into its power distribution portfolio, strengthening its offering to utility customers worldwide. Founded in 1905 and headquartered in Bolingbrook, Illinois, G&W Electric is a global leader in innovative power grid solutions, with a presence in over 100 countries. The company is known for advanced load and fault interrupting switches, reclosers, sensors, system protection equipment, power grid automation, intelligent grid monitoring, and transmission and distribution cable accessories. Safegrid is a Finnish technology company headquartered in Espoo, Finland. The company develops the Intelligent Grid System®, a grid monitoring solution that combines instant-on wireless sensors with advanced analytics to deliver real-time insight into grid conditions, enabling utilities to identify emerging issues, anticipate failures, and reduce outage duration across medium and high voltage distribution and transmission networks.
Case published 8.5.2026
Kiwa – Acquisition of Sertio
We advised Kiwa in its acquisition of Sertio Oy, a Finnish notified body designated by the authority in accordance with the EU Regulation on in vitro diagnostic medical devices (IVDR). Sertio provides conformity assessment services in accordance with IVDR. Kiwa is one of the world’s leading testing, inspection, and certification companies, operating in over 35 countries. 
Case published 7.5.2026
Metsäkonepalvelu – Acquisition of Junnonen Forest and the business operations of Lamerit
We advised Metsäkonepalvelu Oy in its acquisition of the entire share capital of Junnonen Forest Oy, a Finnish timber harvesting services company, and the timber harvesting services business of Lamerit Oy. The acquisition supports Metsäkonepalvelu’s growth strategy and strengthens the company’s position, particularly in southeastern Finland. Metsäkonepalvelu is a portfolio company of A. Ahlström Oy, a Finnish family-owned industrial owner. The company provides mechanical timber harvesting services to forest companies, large private forest owners, and the public sector in Finland and Sweden. Metsäkonepalvelu Group employs nearly two hundred forestry professionals.
Case published 6.5.2026

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