Sungrow introduced the PowerStack 255CS ESS and MG5/6RL hybrid inverter with MGL060 battery for C&I and residential applications, respectively, at the event
The ESS’s storage capacity can be scaled up to 6.425 MWh of energy by connecting 25 units in parallel
The company also promoted its S2500S-L series microinverter that supports up to 4 PV modules
Sungrow, a global PV inverter and energy storage solutions provider, introduced a new lineup of products designed for the Indian market during REI Expo 2025.
The PowerStack 255CS series commercial & industrial (C&I) ESS, consisting of battery units (ST510CS) based on 314 Ah capacity cells, stores/discharges up to 257 kWh of energy. Housed in a ‘compact’ enclosure, it supports an undisclosed full-load backup for up to 2 hours at a nominal discharge rate. The ESS’s operational temperature is optimized by controlling the flow of a circulating liquid, aligning with loads and the external environment, by an AI algorithm in real-time. The company claims that this results in a reduction of heat loss by up to 33% compared to air-cooled counterparts and limits the battery unit-to-unit temperature delta to less than 2.5°C. These attributes optimize the system performance and battery lifespan; however, the company didn’t quantify these parameters.
For operational reliability in hazardous and challenging industrial environments, the system has a 3-level fire safety feature. Additionally, an overcurrent safety function protects the system from short circuits, overload, and other hazards. Regarding the scalability, the storage capacity of PowerStack 255CS can be scaled up to 6.425 MWh of energy by connecting 25 units in parallel. It also provides flexibility to C&I consumers to choose between grid-tied and off-grid configurations for its storage solutions.
For homeowners seeking energy independence, Sungrow introduced the MG5/6RL hybrid inverter and MGL060 battery. Supporting up to 20 A input current from mainstream PV modules and featuring a wide MPPT range with PID protection, the system maximizes energy generation even under challenging conditions. Its MPP channel, featuring a ‘wide’ voltage range, supports PV modules with a short-circuit current (Isc) of up to 20 A. A maximum of 8 inverters and 16 batteries can be connected in parallel. Meanwhile, the battery, equipped with 314 Ah cells, provides stable charging/discharging performance at operational temperatures up to 45°C, without derating. It switches to backup mode within 4 ms during grid outages or failures. It is housed in an IP65-rated enclosure and is resilient to metal corrosion at the C5-M level. The company provides a minimum warranty of 15 years on this ESS.
For the rooftop PV segment, Sungrow showcased the S2500S-L series microinverter at the event. Unlike the standard product, which supports individual PV modules, this model supports up to 4 PV modules of 625 W capacity each with 4 independent MPPTs. The microinverter operates without power derating at 45°C and maintains stable performance for up to 80°C. The ‘plug-and-play’ design and configuration with PV modules, which can be done in just one click, make the microinverter installer-friendly. Additionally, its rapid shutdown feature ensures the safety of the system and the roof from potential fire occurrences.
We are awaiting the commercialization details for these products at the time of publishing this article.