HY Solar has launched the HT3.0 quad-cut module at its base in Jiangyin, marking an upgrade of its n-type portfolio built on TOPCon 3.0 cell technology with cell efficiency of up to 27.5%. The manufacturer said that the new product has a PSP quad-cut architecture, high bifaciality and low degradation.
Formerly known as Wuxi Shangji Automation, Chinese manufacturer HY Solar has rolled out the first unit of its HT3.0 high-efficiency quad-cut module at its Jiangyin manufacturing base, marking an upgrade of the Chinese manufacturer’s n-type module portfolio.
The module is based on the company’s self-developed n-type TOPCon 3.0 cell technology. According to HY Solar, the cell platform uses a poly-finger laser patterning process designed to retain a thicker poly layer in metal contact areas while thinning or removing it in non-contact areas. The approach aims to improve current transport, reduce optical shadowing and reduce parasitic absorption.
The TOPCon 3.0 cells achieve a conversion efficiency of up to 27.5%. The HT3.0 module is built on 210R rectangular wafers and a 66-cell quad-cut layout. It combines high-density encapsulation and negative apertures with a compact cell configuration, enabling module efficiency of up to 24.8% and power exceeding 670 W, the company said.
HY Solar said the quad-cut architecture uses a parallel-series-parallel (PSP) topology designed to reduce the risk of hot spots and improve output stability under partial shade and high temperatures. The smaller cell size is also intended to distribute mechanical stress more evenly, reducing the risk of microcracks and limiting the impact of single-cell deviations on overall output.
According to the company, the module has a bifaciality of up to 90%, a temperature coefficient of -0.26%/C, a first year degradation of up to 1% and an annual degradation of approximately 0.35%. It is backed by a 25-year product warranty and a 30-year linear performance warranty.
HY Solar added that the module is designed for harsh environments, including coastal, plateau and desert conditions, with resistance to salt fog, sand, UV exposure and mechanical loads. It received IEC 61215 and IEC 61730 certification from TÜV Rheinland.
Production will mainly take place at HY Solar’s intelligent module base in Jiangyin, which has digitalized and traceable production processes to support the ramp-up of the new product. As of May 2026, the company reported 21 GW of module capacity and 30 GW of n-type TOPCon cell capacity, with cell capacity expected to increase to 50 GW over the course of the year.
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