European Experience in BESS Development: Practical Models, Grid Integration, and Opportunities for Ukraine

Energy Club continues its series of professional meetings dedicated to international experience in the development of battery energy storage systems (BESS).

During this closed online meeting, hands-on expertise will be shared by Oskari Jaakkola, CEO of the Finnish company Cactos — one of Europe’s pioneers in intelligent energy storage systems.

Cactos designs, manufactures, and deploys smart BESS solutions that help stabilize the power grid, reduce peak loads, protect consumers from price volatility, and accelerate the integration of renewable energy sources.

The meeting will focus on practical approaches to BESS development in Finland and other European countries, as well as key lessons that can be highly beneficial for the Ukrainian market today.

What we will discuss:

• Current trends in the European energy storage market;
• The evolution of the BESS market in Finland;
• How BESS projects are structured from the perspective of a technology manufacturer and turnkey solution provider;
• The role of software and intelligent control in maximizing energy storage efficiency;
• Opportunities for collaboration between international technology companies and Ukrainian engineering, EPC firms, and developers;
• European approaches that can benefit Ukraine as it transitions from isolated pilot projects to utility-scale BESS deployment.

The meeting format includes a speaker presentation followed by an open professional discussion with an opportunity to ask questions.

Participation in the meeting is open to Energy Club member companies and invited experts.

Speaker

Oskari Jaakkola

CEO, Cactos

About the company:

Cactos is a Finnish pioneer in intelligent energy storage systems.

The company develops, manufactures, and provides turnkey BESS solutions for energy storage, management, and optimization.

Core areas of activity:

• Battery energy storage systems (BESS);
• Turnkey EPC solutions;
• BESS grid integration;
• Operational energy management;
• Software and digital optimization;
• Equipment maintenance and support.

Cactos was founded in 2021 and today brings together over 100 professionals. The company has offices in Kempele, Helsinki, and Amsterdam. Storage system manufacturing is located in Finland, while the software is developed in Helsinki.

Cactos has been a member of Energy Club since 2025.

More information about the company:

Cactos