PPC Group and METLEN have entered into a Joint Venture Agreement (JVA) to establish a jointly owned company focused on large-scale battery storage development across key European markets. Under the agreement, both companies will hold a 50% stake in the venture, which will oversee the development, construction and operation of a portfolio of Battery Energy Storage System (BESS) projects totaling up to 1500 MW / 3000 MWh Energy Storage capacity. The projects will be located in Romania, Bulgaria and Italy, regions where both firms already maintain a presence in the electricity sector. Of the planned portfolio, around 1,000 MW is expected to be implemented within the next 12 months, marking the first phase of the 1500 MW Energy Storage initiative designed to expand storage infrastructure in Southeastern and Southern Europe.
The energy storage installations will rely on two-hour liquid-cooled battery systems built using innovative LFP technology. According to the companies, this approach is designed to maximize usable energy output while maintaining strong operational safety standards. Through the collaboration, each partner will contribute expertise from its core operations. PPC Group brings its established presence across the three target markets and will support rapid development and efficient energy management of the 1500 MW Energy Storage portfolio. METLEN, meanwhile, will apply its long-standing experience and technical capabilities to ensure the timely construction and quality delivery of the battery systems, supporting the broader deployment schedule for the projects.
Beyond the technical construction of the facilities, the battery storage stations will serve a strategic role in supporting renewable energy generation. By storing surplus electricity generated by photovoltaic and wind parks, the systems will allow power to be injected into the grid during periods when sun or wind resources are unavailable. This capability is expected to improve the balance and stability of electricity systems in the region while maximizing the efficiency of renewable energy output. The operation of these installations, along with future facilities, will enhance the management of renewable energy production and ensure that renewable electricity generation can be utilized more effectively. Investments tied to the 1500 MW Energy Storage program are also expected to strengthen grid stability both domestically and across neighboring European energy markets.
For METLEN, the partnership represents an important step in expanding its role in European energy storage infrastructure. As outlined in its Medium-Term Business Plan, energy storage forms a central pillar of the company’s strategy to maximize the value of Renewable Energy Sources portfolios and support the transition toward a high-penetration clean energy system.
For PPC Group, the agreement secures progress toward achieving a substantial portion of its energy storage targets over the next three years. The structure of the deal supports rapid project execution while maintaining construction quality and ensuring the smooth operation of storage assets distributed across multiple countries.
