Renewable energy developer Renalfa IPP has begun deploying a large-scale battery energy storage system (BESS) at its Oslomej solar power project, marking a further expansion of clean energy infrastructure in North Macedonia.
The company announced that a 50 MW / 200 MWh battery storage facility is being installed alongside the existing 65.8 MW solar power plant, which has been in operation since 2023. The new storage capacity is expected to significantly enhance grid balancing capabilities, improve operational flexibility, and enable more efficient management of solar power output fluctuations.
The Oslomej energy complex was developed on the site of a former lignite mine, in cooperation with the state-owned utility ESM (Elektrani na Severna Makedonija). The project is part of a broader national strategy aimed at transforming former coal-based energy sites into renewable energy hubs, supporting the country’s long-term decarbonization goals.
The development has been recognized by regional and international institutions as one of the key green energy investments in the Western Balkans. In 2024, it was included among flagship projects supported under the Western Balkans Investment Framework (WBIF), reflecting its strategic importance for regional energy transition.
Financial backing for the initiative was provided through Finance in Motion, via the Green for Growth Fund, supporting North Macedonia’s shift away from fossil fuels and toward cleaner and more sustainable electricity generation.
Renalfa IPP, a joint venture between the Renalfa Solarpro Group and French investment firm RGreen Invest, secured the project through a state tender held in 2021, which covered the development of two 50 MW solar power plants.
