Key takeaways:
LESSO Solar displayed a TOPCon portfolio, including a 730 W dual-glass bifacial module 23.5% efficiency during SNEC 2025
The iStorageE2A Series residential storage systems offer 7.6 to 12 kWh capacities with hybrid inverter compatibility
The company also showcased hybrid and string inverters, as well as smart EV chargers, to support integrated storage and EV applications
At SNEC 2025, LESSO Solar showcased its PV modules all-in-one clean energy platform, which includes PV modules, inverters, energy storage systems, and smart energy management solutions. LESSO’s module portfolio on display featured multiple n-type TOPCon bifacial modules built on182 mm and 210 mm wafer platforms. One highlight was the 730 W dual-glass bifacial product, featuring 132 half-cells based on the 210 mm wafer. The module offers a conversion efficiency of 23.5%. This TOPCon module uses 2.0 mm tempered glass on both sides, supports a maximum system voltage of1,500 V, and measures 2,384 × 1,303 × 35 mm.
In the medium power range, the company exhibited a 640 W n-type bifacial TOPCon module constructed with 156 half-cut cells made using the 182 mm wafer platform. The module achieves an efficiency of 22.54%, features a dual-glass configuration, and is designed for utility and C&I rooftop installations. The product dimensions are 2,278 × 1,134 × 35 mm, and it supports up to 35 A fuse rating under 1500 V systems.
LESSO also presented a 605 W module based on the 210R format with 120 cells and 22.84% efficiency, and a 580 W module based on the 182mm format with 144 cells and 22.45% efficiency.
In addition to PV modules, LESSO showcased its residential energy storage platform. The iStorageE2ASeries offers capacities ranging from 7,600 Wh to12,000 Wh, forming part of the company’s all-in-one clean energy solution strategy. Alongside the storage units, the company presented its hybrid inverters for PV + storage integration, as well as string inverters for direct solar-to-grid applications. LESSO also displayed its range of EV chargers, completing the residential clean energy ecosystem highlighted at the event. LESSO unveiled its Solar Green Power ecosystem consisting of PV + ESS + EV, tailored for residential and small commercial users. PV being the key component, the company presented various integration scenarios including, roofs, balconies, carports and gardens. As part of solution for EV, the company displayed a 7kW smart EV chargers, compatible with mainstream EV brands, supporting app-based charging control and real-time monitoring.
The residential lithium battery systems come equipped with temperature control and compatibility with hybrid inverters. It supports on-grid, off-grid, and hybrid operating modes, offering options for energy independence and peak shaving. Fully certified with CE, UL, TÜV, and other global safety standards, these systems provide a comprehensive solution that enables smarter, cleaner, and more efficient energy use in daily life, underscores LESSO. While notable, the company has yet to provide a response on the timeline for commercialization, leaving its market readiness unclear.