Thursday, 08 May 2025

Robin Whitlock

PV inverter and energy storage system (ESS) providerSungrowhas just unveiled its latest commercial and industrial (C&I) solutions – consisting of the liquid-cooled ESS PowerStack 255CS and hybrid inverter SH125CX – at Intersolar Europe 2025.

255CS. Courtesy of Sungrow.

The installed capacity of C&I energy storage is currently expected to reach 46 GWh by 2028. Businesses worldwide are turning to C&I ESS in order to reduce energy consumption, lower electricity costs, enhance power supply reliability and support the integration of renewable energy. However, the rapid energy transition requires innovative solutions to tackle pressing challenges such as unstable power supply and grid pressure from the growing demands of EV charging.

At Intersolar 2025, Sungrow is showcasing its broad portfolio which caters to a range of small, medium, and large C&I applications.

The company’s latest C&I liquid-cooled ESS PowerStack 255CS is equipped with advanced 314Ah battery cells, enabling flexible power capacities – 275 kWh for a 2-hour system or 514 kWh for a four-hour system – along with over 90 percent round-trip efficiency and a 20-year design life. It is fully integrated with PCS, EMS and BMS and certified under stringent global safety standards, such as UL9540 and NFPA855/69/68/14. This enables seamless operation across a wide range of scenarios, including C&I standalone ESS, PV plus ESS, EV chargers plus ESS, and microgrids.

The SH125CX is a hybrid inverter with a nominal output power of 125 kW, which can be combined with the PowerStack 255CS to create a DC-coupled solution, designed for medium and large C&I scenarios.

Its key features include:

Flexible design – suitable for all modules in the market with a maximum current per MPPT of 40A. It can reach DC-AC ratios of up to 2.0, which is needed in the European market. The DC-coupled solution also offers CAPEX saving opportunities in some parts of the AC distribution, the PV inverter, and the external energy management system.

Flexible scalability – It supports up to 24 units in parallel, achieving a maximum 3MW AC output and 6MWh ESS capacity.

Flexible retrofitting – It is also ideal for retrofitting, replacing the PV inverter with a hybrid inverter in one step, and transforming into a power storage hub instantly.

Flexible adaptation – The SH125CX is equipped with IP66 and C5 anti-corrosion, making it resilient to harsh conditions. The inverter is embedded with an Arc Fault Circuit Interrupter 3.0 (AFCI 3.0) function, identifying DC-side arc faults across cable lengths up to 450 metres, ensuring maximum safety.

Sungrow’s C&I energy storage products have been deployed in over 1,000 projects worldwide to date, serving a wide range of industries including metallurgy, automotive, and textiles. These solutions are widely adopted across Europe—in countries such as Spain, the Benelux region, and Italy – as well as other global regions including Australia, Japan, the Middle East, and South Africa.

“The C&I market is a strategic focus for us. With an expanded product portfolio designed to meet diverse demands, we continue to push the boundaries of innovation – both in our technologies and in our local presence” said Meng Yang, Vice President of Sungrow Europe, responsible for Distribution. “We are committed to forging stronger partnerships and driving a lower-carbon future across Europe.”

For additional information:

Sungrow