The Slovenian battery manufacturer TAB has commissioned a storage system in Prevalje, Slovenia, with a rated power of 1,325 megawatts (MW) and a capacity of 2.2 megawatt-hour (MWh).
The operation of the facility will be taken over by Holding Slovenske Elektrarne (HSE), a key player in Slovenia’s green transition, by the end of 2025. The company will manage the storage system remotely from its Management Centre, further reinforcing the importance of the project within the broader efforts to strengthen the country’s electricity system and highlighting the role of storage facilities in the green energy transformation.
Battery systems play a key role in Slovenia’s transition
“The HSE Group is the driving force behind Slovenia’s green transition,” said Dr. Tomaž Štokelj, CEO of HSE. “Investments in new capacities for electricity production from renewable sources and in energy storage are a central part of our development strategy.”
“Among energy storage technologies, battery systems play a key role, and we plan to install them at various energy sites across Slovenia to further contribute to the stability of the electricity supply. In this context, our cooperation with TAB is an example of good practice and excellent collaboration, something we hope to see even more of in the future,” he added.
“The launch of the battery energy storage system represents an important milestone for TAB, not only technologically, but also strategically,” said Roman Burja, CEO of TAB. “We are proud to have developed and implemented a solution that is the result of European expertise and confirms our focus on the energy solutions of the future.”
“The system is not just a technical achievement, but also a concrete example of reliable, safe and sustainable practice that we want to offer to the market. We are pleased that, by the end of 2025, the storage facility will be taken over by Holding Slovenske Elektrarne (HSE), which exemplifies excellent cooperation between industry and the energy sector and strengthens our shared efforts in the energy transition. With this project, TAB demonstrates its readiness to play an active role in the energy transformation.”