The largest battery energy storage system (BESS) to date in Romania, with a capacity of 200 MW/400 MWh, has been commissioned in Cluj County by the private investor Nova Power & Gas.
Bogdan Ivan, Romania’s Minister of Energy, welcomed the investment, hailing it and other big battery developments as “exactly the type of projects that Romania needs to modernize its energy system and to safely integrate more and more renewable sources.”
Ivan added that he traveled to Cluj County to see the BESS. During his visit he appealed for more “responsible private capital, fair competition and projects that deliver real results for consumers” in Romania.
He said that the Ministry of Energy will “continue to create the necessary framework for such investments, respecting the roles and institutional limits of the state, but being an open partner for all those who build value in Romania.”
While the Cluj County BESS is the largest to have joined Romania’s grid to date, the country has larger systems in development. In November 2025, Aukera announced it had secured a €60 million debt facility from Kommunalkredit Austria AG to finance its first standalone battery energy storage system in Romania.
At 250 MW / 500 MWh, the planned project by the Belgian developer is the biggest BESS project announcement to date in Romania. Once operational, it will be one of the largest projects in Central and Eastern Europe. Located in Gura Ialomitei, Ialomita County, it will be delivered in two phases and construction is already underway. Operation is expected to commence by mid-2026.
Romania is a hotbed for BESS development, backed by government support. Also in November 2025, Ivan launched a €150 million program for municipalities, set to add 385 MW of new battery capacity to the national electricity system.
On December 12, meanwhile, Toki Power Holding GmbH, the electricity trading arm of Austria’s Renalfa Solarpro group acquired a 150 MW/300 MWh standalone BESS for an undisclosed sum.
The BESS, which has a two-hour duration, extendable to four hours, is expected to be operational by the final quarter of 2026. Toki Power’s CEO, Yuri Katanov, said Romania was one of the most promising markets in the European Union.
