Photo: Balkan Green Energy News
General Manager of YESS Power Sedat Akar showcased the Novaci hybrid power plant at Belgrade Energy Forum – BEF 2026. The Turkish company, which was the energy storage integrator for the project in North Macedonia, expects the 30 MW and 60 MWh battery system to enter commercial operation in the third quarter of this year.
Upon its commissioning in 2023, the Novaci solar power plant in North Macedonia was the biggest in the Western Balkans, with its 55 MW. It is becoming a trailblazer again, as a hybrid power plant, due to an upgrade with a battery energy storage system (BESS). Turkish company YESS Power integrated it for the owner, Skopje-based Mey Energy.
The BESS has 30 MW in operating power and 60 MWh of storage capacity. YESS Power’s General Manager Sedat Akar presented the project at the fourth Belgrade Energy Forum – BEF 2026. The battery system is on track to enter commercial operation in the third quarter of this year, he revealed.
Cubenergy provided equipment for Novaci BESS
The energy storage integrator is a brand of Turkish company Topkapı Endüstri. “Our mission is clear: to lead energy storage projects and provide efficient, profitable BESS solutions through smart energy management systems,” Akar underscored.
Cubenergy is its strategic partner in the home market and the Western Balkans. Akar pointed out that the China-based manufacturer has a global portfolio of 5 GWh on more than 450 BESS sites.
Each string has direct link to its container unit’s PCS
YESS Power’s chief executive pointed out that its all-in-one battery system design enables quick installation, optimized land use and preventing communication issues within the system. “We seamlessly integrate the AC/DC power conversion system into the AC block battery container. This is one of our secrets of this project,” Sedat Akar said.
The Novaci battery system uses lithium iron phosphate (LFP or LiFePO4) technology with liquid cooling. It consists of 20 storage and five transformer units, stepping up to the 33 kV level.
There are eight battery packs per string and eight of them per container. Each string is directly connected to the power conversion system (PCS). It means a malfunction in one string wouldn’t affect the remaining seven.
The BESS is optimized both for energy arbitrage and frequency regulation. YESS Power’s energy management system (EMS) enables operation in island mode and microgrid mode.
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