Sungrow, a leading Chinese renewable energy company, unveiled its latest product, the PowerStack 255CS, at the Global Renewable Energy Summit 2025 (GRES2025) held in Hefei, China, on April 15, 2025. This liquid-cooled battery energy storage system (BESS) is tailored for commercial and industrial (C&I) applications, addressing key deployment challenges with a compact and scalable design.

The PowerStack 255CS combines a power conversion system (PCS) with a three-phase design, battery management system (BMS), and energy management system (EMS) within a single enclosure. This integration simplifies installation and enhances operational efficiency. The system incorporates Sungrow’s advanced grid-forming technology, which ensures reliable performance in diverse grid conditions. It also supports off-grid functionality and can handle 100% unbalanced loads without requiring external transformers.

“Sungrow’s PowerStack 255CS reflects our commitment to delivering innovative solutions for the C&I sector,” said a company representative at the summit. The system’s design prioritizes ease of use and adaptability, making it suitable for a wide range of commercial applications.

The launch at GRES2025 highlights Sungrow’s ongoing efforts to advance renewable energy technologies. The PowerStack 255CS is expected to contribute to the global transition toward sustainable energy by offering businesses a reliable and efficient energy storage solution.