The inverter’s split modular structure enables module replacement in under an hour. It features internal fault diagnosis and self-cleaning air ducts, reducing maintenance needs. Built for durability, it maintains full power output at ambient temperatures up to 45°C and carries a sealed NEMA 4X rating, ensuring reliable operation even in challenging weather conditions.
Alongside the inverter, Sungrow introduced its PowerTitan 3.0 utility-scale battery energy storage solution. Packaged in a standard 20-foot container, the battery delivers 6.9 MWh and supports storage durations from two to eight hours. The system uses a 661Ah stacking LFP cell with a 12,500-cycle lifespan and integrates a 430 kVA liquid-cooled SiC PCS. It achieves up to 99.3% peak efficiency and 93.6% round-trip efficiency in a four-hour configuration.
Equipped with Sungrow’s Stem-Cell Grid-Forming Tech 2.0, PowerTitan 3.0 can anticipate grid disturbances before escalation, enabling proactive response. It provides synchronous grid-forming capabilities with renewables and storage, supports GW-scale black start, and allows seamless mode switching between grid-following and grid-forming operations. Sungrow said: “With these functions, the product supports rapid grid recovery, maximizes ancillary service revenue, and ensures reliability across all grid scenarios: generation, transmission, microgrids, and consumption endpoints.”
In addition, Sungrow unveiled the PowerStack 255CS energy storage system. It incorporates 314 Ah battery cells to achieve 257 kWh capacity in a two-hour configuration. With a fully integrated power conversion system and battery management system, PowerStack 255CS supports scalable parallel applications of up to 25 units, covering projects from 257 kWh to 6.4 MWh.
The all-in-one design merges batteries and power conversion systems in one cabinet, operating at three-phase, 480 V. It delivers up to 98.6% maximum power conversion efficiency and 90% round-trip efficiency. The unit also features a liquid-cooled thermal management system that reduces cooling-related auxiliary power consumption by 40%. Certified under UL9540 and NFPA855/69 standards, it complies with global safety requirements.
Sungrow has been providing renewable energy power systems for 28 years. As of June 2025, the company’s global installed capacity of power electronic converters has reached 870 GW. The latest launches demonstrate Sungrow’s efforts to provide advanced solar and storage solutions to meet the increasing demands of energy transition and grid reliability.
