JinkoSolar promoted its upgraded Tiger Neo 3.0 module, featuring up to 670 W power and 24.8% efficiency
The company’s in-house R&D lab has reached 33.22% efficiency for the perovskite/TOPCon tandem cell structure
It also showcased its latest SunGiga series 520 kWh energy storage capacity liquid-cooled ESS solution, targeting C&I customers
At SNEC 2025, vertically integrated Chinese PV manufacturer JinkoSolar, which recently expanded into horizontal integration, showcased a wide range of its new offerings, including upgraded TOPCon PV modules and the latest ESS for commercial and industrial (C&I) applications. The company also promoted its technological progression in perovskite/TOPCon tandem solar cell development during the event.
Leveraging the technological advancements of JinkoSolar’s patented n-type TOPCon cell technology, based on its HOT 4.0 technology platform, the company has developed an upgraded Tiger Neo 3.0 module, boasting higher power and efficiency compared to its predecessor. According to the company, its cell has incorporated multiple advanced features like 20BB, HCP, MAX, and FP, which contribute to higher efficiency. The adoption of the 20BB metallization pattern outlines multiple optical and electrical performance enhancements, like reduced current path length of each finger and the nearest busbar, which reduces series resistance and improves cell efficiency. Its finer fingers with narrow width facilitate less shadow on the cell surface, leading to higher light absorption and improved short-circuit current (Isc), compared to its counterpart. However, the company did not provide much detail on the other 3 technological advancements.
The bifacial Tiger Neo 3.0 module on display, featuring 132 pieces of half-cut cells, is rated for a power output and efficiency of 670 W and 24.8%, respectively. Additionally, it offers a bifaciality of up to 85%. Sized at 2,382 × 1,134 × 30 mm and laminated with 2 mm-thick front and rear glass, the company promotes this module for utility-scale, C&I rooftops, and distribution markets.
Alongside the high performance, this new model incorporates an upgraded module welding technology, which reduces the risk of microcracks and high-temperature hotspots, enabling improved product stability and lifespan. According to the company, this model is expected to be commercially available in Q4 2025.
Meanwhile, the company also promoted its capability and commitments in tandem cells development and commercialization during the event. JinkoSolar supports the “perovskite/TOPCon tandem solar cell” structure. The company claims to have reached up to 34.22% efficiency with its tandem cells, along with an open-circuit voltage (Voc) exceeding 2.01 V.
In addition to high performance, the company says its R&D lab has addressed the critical limitation of perovskite/tandem solar cell – reliability. Going through multiple in-house stress tests, including damp heat (DH) and thermal cycling (TC), this cell exhibited less than 5% degradation.
The company also showcased its recently launched SunGiga series liquid-cooled 520 kWh 3-phase model at the exhibition. This new product offers multiple advanced features that can be categorized into Performance, Flexibility, and Safety.
Performance
Equipped with 310 Ah battery cells, this storage solution, which can store up to 520 kWh of energy, can deliver up to 125 kW of 3-phase AC backup power for 4 hours in an on-grid or a standalone energy storage configuration. However, it can also feed a higher AC output power of 250 kW for 2 hours, meeting the diverse short-time power demand of industrial applications.
Flexibility
The system’s built-in functionality allows seamless switching between on-grid, off-grid, and microgrid modes, enabling compatibility with a broad range of applications and operating environments. For example, on-grid mode supports peak shaving and energy arbitrage, while off-grid mode provides reliable emergency backup power.
Its modular design, paired with a ‘plug-and-play’ feature, enhances installation efficiency and reduces installation costs by over 10% compared to traditional systems. To meet increasing C&I-scale energy needs, the system also offers scalability to up to 6.2 MWh by connecting 12 units in parallel.
Safety
The company says it has integrated several protective features to address critical safety concerns in potentially hazardous industrial environments. These include advanced fire detection and response systems, intelligent thermal management, multi-level smart monitoring, and other safety mechanisms to ensure robust system operation and risk mitigation.