Driving the energy transition with smart energy storage
Cactos Fleet Finland Ky acquires, owns, and operates smart battery energy storage systems across Finland. These assets store renewable electricity, balance fluctuations in the national grid, and enable cleaner, carbon-neutral mobility. By leasing the units to end customers and participating in the electricity markets, the fund generates steady cash flows while delivering measurable environmental benefits.
All investments comply with the fund’s sustainability framework, targeting net zero emissions by 2050 and aligning with both the EU Taxonomy and UN Sustainable Development Goals. At least 20% of the portfolio meets EU Taxonomy criteria, focusing on renewable energy storage and clean transportation.
Investment strategy
The fund’s strategy is to build a diversified portfolio of battery energy storage systems installed either behind-the-meter at customer sites or in front of the meter at dedicated BESS parks.
Units are leased to customers for long-term use, with additional revenue generated through participation in the electricity markets. The portfolio is actively managed to optimise utilisation rates, market participation, and financing structures. While assets are typically held until the end of their lifespan, sales may be considered if market conditions offer a significant premium over projected future cash flows.
Impact and sustainability
Each unit in the portfolio contributes directly to the stability of Finland’s electricity system by storing surplus energy and releasing it during periods of high demand. This reduces reliance on fossil-fuel-based generation and supports the integration of intermittent renewable sources.
The fund measures and monitors:
- Volume of renewable electricity stored (MWh)
- Avoided or reduced CO₂ emissions (tCO₂)
- Compliance with environmental permits
- Adherence to human rights and anti-corruption policies
This monitoring aligns with the EU Sustainable Finance Disclosure Regulation (SFDR) and the fund’s own sustainability risk management processes.
Governance and oversight
All investment decisions follow a due diligence process assessing financial, operational, and sustainability criteria. Compliance reviews ensure adherence to the OECD Guidelines for Multinational Enterprises and the UN Guiding Principles on Business and Human Rights.
Performance, key metrics, and sustainability outcomes are reported to investors on a regular basis, with annual disclosure in accordance with SFDR Article 11(2).
How it works
Each battery energy storage system is delivered to the client fully installed and commissioned by the OEM and transferred to the ownership of the fund, which then becomes the contractual partner for the entire leasing term. The systems remain in operation for their full lifespan, with value maximised through optimal utilisation, reserve market participation, and efficient financing.
In addition to stable leasing income from customers, the systems generate ancillary service and electricity market revenue by participating in frequency regulation and other markets.