Chinese manufacturer DMEGC Solar has announced the certification of its new high-power photovoltaic modules by TÜV SÜD, under the IEC 61215 and IEC 61730 standards. These modules include the Infinity G12RT-B66 series, designed to meet the needs of both large-scale installations and rooftop systems. The certification confirms a peak output of 655 W, placing DMEGC among the industry’s most technologically advanced producers.
A new interconnection technology between cells
DMEGC Solar is the first player in the sector to implement Cemented Joint (CJ) technology, a butyl-based encapsulation system placed between photovoltaic cells and the frame. This innovation aims to enhance mechanical reliability while increasing the module’s power. The optimised dimensions of 2382 mm x 1134 mm allow for flexible installation, particularly suitable for utility-scale solar plant operators.
The G12RT-B66 module ranked fifth in the TaiyangNews October listing, with a mass production power rating of 635 W. This output places it just behind more expensive technologies such as back-contact (BC) modules and heterojunction (HJT) cells. According to internal tests, the module maintains high performance levels even after accelerated aging protocols, such as the DH2000 test.
Commercialisation and technical outlook
DMEGC Solar plans to begin mass production and shipping of the G12RT-B66 module during the first quarter of 2026. The compatibility of CJ technology with major cell architectures — including full screen, multi-cut and BC — offers the company technical flexibility to meet evolving market demand.
DMEGC’s research and development teams are currently evaluating the integration of new cell architectures, with one or two expected to be implemented in future module generations. This strategy targets even higher output levels while maintaining competitive balance-of-system (BOS) and levelised cost of energy (LCOE) metrics.
DMEGC Solar is one of the few manufacturers simultaneously ranked as Tier 1 by BloombergNEF (BNEF), Standard & Poor’s (S&P), and Shanghai Metals Market (SMM). According to consultancy firm Wood Mackenzie, the company ranks fifth globally among photovoltaic module manufacturers in 2025.
