At REI Expo 2026 in Greater Noida, India, Sungrow India, the Indian unit of the Chinese inverter and storage maker Sungrow, showed its PowerStack ST255CS, a liquid-cooled storage cabinet for commercial and industrial sites. According to the company's product page, the cabinet holds 257 kWh and delivers 125 kW, and up to 25 of them can be connected in parallel.
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Sungrow India exhibited at REI Expo 2026 in Hall 14, at Booth C191, at India Expo Mart in Greater Noida, Uttar Pradesh, India. The company is the Indian unit of Sungrow, which is based in Hefei, China, and makes inverters and battery storage systems. Its stand had been arranged in three zones, which were set aside for homes, for businesses and for utility plants.
The main storage exhibit, which had been placed in the business zone, was the PowerStack ST255CS. According to the company's product page, the cabinet holds 257 kWh of energy and delivers 125 kW through its own power conversion system, so that a single unit can serve as the complete storage system of a factory or a commercial building.
The cells of the cabinet are cooled by liquid, and the company states that its thermal control reduces the auxiliary power that the cabinet consumes by 33%. The round-trip efficiency of the system has been put at 90%, and up to 25 cabinets can be connected in parallel when a site needs more capacity.
The cabinet had been set beside the 125 kW SH125CX hybrid inverter, which has been designed to let a business add batteries to a solar plant that it already operates. The 150 kW SG150CX string inverter was shown in the same zone.
In the home zone, the 5 kW and 6 kW MG5RL and MG6RL hybrid inverters were paired with the MBL050, MBL120 and MBL160 low-voltage batteries, which hold 5, 12 and 16 kWh respectively. The company also stated that its iSolarCloud monitoring platform is now being run on a local server in India.