Romania commissions the largest 400 MWh battery storage project to date

Romania has commissioned its largest battery energy storage system (BESS) to date: a 200 MW / 400 MWh project in Cluj County, developed by private investor Nova Power & Gas.

Romania’s Minister of Energy, Bogdan Ivan, welcomed the project, saying large-scale batteries are “exactly the type of projects that Romania needs” to modernise the power system and safely integrate more renewable generation. Ivan said he visited the site in Cluj County and called for more responsible private capital, fair competition, and projects that deliver tangible outcomes for consumers. He added the Ministry of Energy will continue shaping a framework that supports such investments while respecting institutional limits, positioning the state as an open partner for value-creating projects in Romania.

While the Cluj installation is the largest currently connected to Romania’s grid, even bigger projects are moving ahead. In November 2025, developer Aukera announced a €60 million debt facility from Kommunalkredit Austria AG to finance its first standalone BESS in Romania. The planned system—250 MW / 500 MWh in Gura Ialomiței, Ialomița County—is the largest BESS project announced in Romania so far. It will be built in two phases; construction is already underway, and operations are expected to begin by mid-2026. Once online, it would rank among the largest storage projects in Central and Eastern Europe.

Romania continues to attract storage investment, supported by government programmes. Also in November 2025, Ivan launched a €150 million scheme for municipalities, aimed at adding 385 MW of new battery capacity to the national power system.

More recently, on December 12, Toki Power Holding GmbH—the electricity trading arm of Austria’s Renalfa Solarpro group—acquired a standalone 150 MW / 300 MWh BESS for an undisclosed price. The system has a two-hour duration, expandable to four hours, and is expected to enter operation in Q4 2026. Yuri Katanov, CEO of Toki Power, described Romania as one of the European Union’s most promising markets.