Greenvolt Power has inaugurated what it says is Hungary’s largest battery energy storage system (BESS) currently in operation. Located in Buj in northeastern Hungary, the project has a power capacity of 99.8 MW and an energy storage capacity of 288.6 MWh. The facility is designed to support grid flexibility, enhance security of electricity supply, and facilitate the grid integration of renewable energy in Hungary and Central and Eastern Europe. BYD Energy Storage supplied its Cube battery storage technology for the project, describing it as a milestone for Hungary’s renewable energy development and Europe’s broader energy transition efforts.
Germany-headquartered RWE has received approval from the Australian Energy Market Operator (AEMO) and Transgrid to operate the 50 MW/400 MWh Limondale Battery Energy Storage System (BESS) at full capacity. Following successful commissioning, grid compliance and performance testing, the Limondale BESS project has moved from commissioning to full commercial operations in in New South Wales (NSW).
The battery, comprising 144 Tesla Megapacks, is capable of charging at 100 MW and discharging at 50 MW output for more than 8 hours. It corresponds to a storage capacity of at least 400 MWh, making it the longest-duration battery currently operating in Australia, stated RWE. Located alongside RWE’s Limondale Solar Farm near Balranald, the system is designed to help ease network pressures during peak demand periods and support a more flexible and secure electricity grid, according to the company. The project is among the winners of AEMO’s 1st competitive renewable energy auction (see Australia Completes 1st Roadmap Tender Process).
Holland-based renewable energy company Fortis Energy is preparing to begin construction of the Ersekë Solar Power Plant in Albania's Kolonjë region. The project in the village of Taç-Lartë, will combine a 75 MW DC solar facility with a 40 MWh BESS. The solar plant is expected to generate more than 135 GWh of electricity annually. According to Fortis, the integrated battery system will help store solar energy and support more reliable power delivery to the national grid.
Fortis Energy said the project will involve ‘carefully selected’ consortium of local and international suppliers and contractors, creating economic opportunities and supporting regional development. The company added that the project will contribute to expanding its renewable energy portfolio in Central and Eastern Europe.
Spanish renewable energy company Solaria Energía y Medio Ambiente has secured €41 million in grants from Spain’s Institute for Energy Diversification and Saving (IDAE) for battery deployment. It will use the funds to deploy BESS linked to 4 agrivoltaic projects in Castile and León and Catalonia. Grants have been approved under Spain’s Innovative Renewable Energies program, funded through NextGenerationEU for Solaria’s win under the 2nd call for Investment Aid Programmes for Innovative Renewable Energy and Storage Projects.
The projects combine solar power generation with agricultural and livestock activities. According to Solaria, the storage systems will help optimize renewable energy output, improve grid stability, reduce curtailment, and provide greater flexibility as electricity demand grows, while maximizing land use.
French battery storage specialist Eclipse has raised €20 million in a Series A funding round co-led by BNP Paribas and Noria. Its existing investor Wind Capital participated in this round. The company said the funding will support 3 priorities: deploying its 1st proprietary battery storage projects, expanding its Flowstream optimization and trading platform, and accelerating long-term energy offtake solutions across Europe.
The investment follows a strategic partnership between Eclipse and BNP Paribas aimed at supporting the financing and deployment of BESS the duo announced earlier this year. They plan to offer long-term offtake solutions that combine Eclipse’s market and optimization expertise with BNP Paribas’ financing and structuring capabilities.
China-headquartered Fox ESS has signed a 5GWh battery energy storage supply agreement with Solar Juice, an Australian renewable energy distributor. The deal was signed during the SNEC exhibition in Shanghai and sets a 2-year supply target. The agreement extends their partnership established in 2025, when they signed their 1st large-scale supply contract. Both companies said the new commitment reflects confidence in their collaboration and supports the delivery of energy storage solutions to Australian homes and businesses. Fox ESS said the deal strengthens its position in Australia's growing energy storage market.
Carlyle-backed energy infrastructure platform Revera Energy has announced a final investment decision (FID) for its 400 MW/800 MWh Hunterston battery energy storage project in Scotland. Construction is expected to begin on site in North Ayrshire in Q3 2026. The Hunterston project, said the company, is part of its growing Scottish battery storage portfolio, which also includes the Windyhill (200 MW/400 MWh) and Kincardine (400 MW/800 MWh) projects. Together, the 3 projects represent more than £500 million in investment and a combined capacity of 1 GW/2 GWh. According to the company, the portfolio could support around 550 construction jobs and 45 long-term operational roles. The projects are also included in the UK’s Clean Power 2030 framework and are intended to support a more flexible and resilient electricity network.
Carlyle launches Revera Energy in May 2025 as an independent energy infrastructure solutions platform backed by Carlyle Global Infrastructure. Its portfolio comprises projects carved out and acquired from Amp Energy in Australia and the UK.
China-headquartered energy storage and EV solutions provider SINEXCEL has signed a strategic cooperation agreement with Tokyo-based clean energy developer Namcha Barwa. The partnership brings together Namcha Barwa's project development and grid-connection expertise with SINEXCEL's utility-scale power conversion systems (PCS), engineering services, and local after-sales support to expand in Japan.
According to their agreement, these companies will jointly support battery energy storage projects across Japan and strengthen local operations, including engineering, technical training, and spare-parts services. SINEXCEL said its StellaON PCS solutions meet Japan's grid requirements and that it has delivered more than 50 energy storage projects in the country over the past 5 years. Globally, it counts 17 GW of installed storage capacity, across more than 60 markets.