en.Wedoany.com Reported - The first phase of the 300MW/1500MWh independent energy storage station in Bulgaria, designed, integrated, and delivered by Kunyu Power, has been successfully handed over. This achievement demonstrates that Kunyu Power possesses the complete closed-loop capability from core products to complex project delivery.
The station utilizes Kunyu Power's independently developed 5MWh liquid-cooled containerized energy storage system, which has obtained authoritative certifications such as IEC and UL from Europe and the United States. The single-unit capacity is 5MWh, achieving an energy density per unit area over 20% higher than the industry mainstream 3 to 4MWh products. The system features fully independent research and development across the entire chain, from battery cells, Battery Management System (BMS), Power Conversion System (PCS) to Energy Management System (EMS). Intelligent liquid cooling temperature control technology keeps the temperature difference between cells within 3 degrees Celsius, extending battery life and adapting to Bulgaria's climatic conditions.
In the delivery phase, Kunyu Power relied on a digital project management platform to achieve full-process visualization from order, production, testing, cross-border logistics to on-site installation and commissioning. The project team formulated multiple logistics contingency plans in advance and coordinated global shipping resources to ensure that equipment from hundreds of containers arrived on site on schedule. Engineering teams from China and Bulgaria completed equipment installation, commissioning, and grid connection testing within the contract period.
The station participates in European Frequency Containment Reserve (FCR) and electricity spot market arbitrage. According to operational data model calculations, under an annual effective cycle count of 531 times, the project can achieve an EBITDA margin of 84.5%. As the largest independent energy storage station currently in Bulgaria, its 300MW/1500MWh regulation capacity is used to enhance the regional grid's ability to absorb renewable energy fluctuations and improve operational safety. Kunyu Power provides a long-term service agreement for this project, committing to a system availability rate of no less than 95% over the entire lifecycle.
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