Astronergy’s TOPCon 4.0 Module Portfolio On Display At SNEC 2024

A pioneer in TOPCon module technology, Astronergy displayed its latest TOPCon 4.0 technology-based product offerings for residential and utility applications at the SNEC 2024 event in Shanghai.

Utility application

Interacting with TaiyangNews at the event, Astronergy classified its 630 W ASTRO N7 TOPCon bifacial module as its recent flagship product for utility applications. The module, with 132 half-cells based on the 182 x 210 mm rectangular wafers and measuring 2,382 x 1,134 x 30 mm, boasts a maximum power output of 630 W and efficiency of up to 23.3%. According to the company, the module’s high power and efficiency can be attributed to multiple key features, like the latest TOPCon 4.0 version cell technology and an innovative module design.

Astronergy’s TOPCon 4.0 solar cells incorporate low-corrosion paste processed with Laser Induced Firing (LIF) technology and multi-layer Poly-Si or POML technology. The application of low corrosion pastes in the TOPCon cell structure with its high-quality metal contacts, and higher resistivity against environmental stresses offers advantages like enhanced cell performance, longevity, and reliability. On the other hand, the LECO process in TOPCon cell fabrication with reduced recombination losses at metal-semiconductor interfaces enables higher efficiency, lower series resistance, and better thermal management. Also, the latest Poly-Oxide-Metal-Layer (POML) technology boosts TOPCon cell efficiency and improves thermal stability. In addition to the module’s improved characteristics, the application of a white thin light-reflecting film (LRF) between the cell gaps improves power generation from the front side by capturing the reflected sunlight over the cell surface, explained Astronergy. Its thin white LRF film on the back side of the module also improves module’s bifaciality. ASTRO N7’s SMBB metallization design helps mitigate the risk of microcrack generation at the module level.

Distributed generation (DG) application

The company also displayed its ASTRO N7s module for the DG application, offering a power range of 445 W to 465 W and efficiency of up to 23.3% in dimensions of <2 m². Primarily targeting the European market, Astronergy said the module is in commercial mass-scale production, with over 1 GW of global shipments to date. The ASTRO N7s series module offers 2 additional models—a bifacial transparent black module and a bifacial black grid module.

The utility model offers a 15-year product warranty and a 30-year linear performance warranty. On the other hand, the DG application bifacial model has a product warranty of 25 years and a 30-year performance warranty. By 2025, Astronergy plans to expand its manufacturing capacity for these modules to 10 GW from the existing 6 GW.