Renewables

Renalfa IPP starts installing 200 MWh battery system at solar plant in North Macedonia

renalfa ipp bess oslomej solar power plant

Photo: Renalfa / LinkedIn

Published

May 5, 2026

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Published:

May 5, 2026

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Austria-based developer and independent power producer Renalfa IPP has begun the installation of a battery energy storage system (BESS) with an operating power of 50 MW and a capacity of 200 MWh at its solar power plant in Oslomej, North Macedonia.

The co-located BESS is being installed at Oslomej, a solar power plant with a peak capacity of 65.8 MW situated on the site of a former coal mine, Renalfa announced in a LinkedIn post.

The Oslomej solar power plant was built in a public-private partnership with North Macedonia’s state-owned power utility Elektrani na Severna Makedonija (ESM).

The solar power plant in Oslomej has a peak capacity of 65.8 MW

The Green for Growth Fund (GGF) financed the construction of the solar power plant and has also agreed to provide EUR 24 million for the BESS. The investment at Oslomej is one of the projects aimed at transforming North Macedonia’s coal mine and power plant complex.

Last year, Renalfa secured a EUR 315 million loan facility from a consortium led by the European Bank for Reconstruction and Development (EBRD). The financing supports the company’s EUR 1.2 billion investment program that envisages the installation of about 1.6 GW of generation assets and 3.3 GWh of co-located BESS in Bulgaria, Hungary, Romania, and North Macedonia.

The facilities were projected to generate 2.3 TWh of green electricity annually, enough to power 920,000 households.

Renalfa is developing a 450 MW solar power plant in Hungary with a 1 GWh BESS

Renalfa is currently building a 450 MW solar power plant in Szihalom, Hungary, with a co-located BESS. The battery system would have an operating power of 250 MW and a capacity of 1 GWh. The BESS equipment is supplied by China-based HiTHIUM.

The facility is the largest hybrid renewable energy development undertaken in Hungary to date and one of the biggest in Europe, according to Renalfa.

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