DMEGC begins production of new TOPCon modules at new Chinese plant

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The new Lianyungang facility has increased DMEGC Solar’s total manufacturing capacity to 12GW of modules per year. Image: DMEGC Solar

Chinese solar module manufacturer DMEGC Solar has started commercial operations at its new Lianyungang manufacturing base in eastern China, which boasts an annual module production capacity of 5GW.

The plant is the company’s first to be built in the city of Lianyungang, and brings its total annual module production capacity to 12GW. The factory will primarily produce a new type of panel, a bifacial tunnel oxide passivated contact (TOPCon) module that boasts a maximum power output of 630W and a conversion efficiency of 22.54%.

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The new module builds on the company’s existing portfolio, such as a 580W n-type bifacial module and a 630W mono-facial module with a conversion efficiency of 22.54%, and DMEGC’s latest product will combine several of the strengths of these modules.

DMEGC also announced that the new facility would form part of its “100% Green Power” initiative, a programme to dramatically improve the environmental performance of solar module manufacturing. The company announced the project in July this year, and plans to use processes such as carbon offsetting and improvements in energy efficiency to ensure that one of its factories produces net-zero emissions by October.

The company also plans to complete what it called “carbon inspections” of all of its factories in early 2024, and noted that it would complete this work alongside German firm TÜV SÜD.

Work such as this could be significant, considering the relatively high carbon cost of producing solar modules compared to the infrastructure required for other renewable energy sources. Figures from the Intergovernmental Panel on Climate Change show that the production of a solar module for use in utility-scale or rooftop environments can generate 41-48g of carbon dioxide equivalent per kWh (gCO2e/kWh) of electricity produced.

While this is significantly lower than the cost of producing coal, with an emission volume of 820gCO2e/kWh, this remains higher than the cost of producing electricity from hydropower sources or onshore wind, with a contribution of 24gCO2e/kWh and 11gCO2e/kWh, respectively. As a result, minimising carbon emissions at utility-scale solar manufacturing facilities could be vital to the long-term health of the sector.

The news follows Trina Solar’s start of manufacturing its latest module, a 700W panel with a conversion efficiency of 22.5%. The Solar Module Super League member is the first company to begin commercial production of a module of such a power capacity, and the latest news from DMEGC demonstrates how solar manufacturers across the sector are looking to ramp up module production to meet the world’s growing demand for solar panels.

30 May 2024
11am (CEST)
Astronergy has introduced its latest module product series, ASTRO N7 and ASTRO N7s, both of which utilise rectangular wafers. ASTRO N7, based on the 210mm*182mm wafer, is specifically tailored for utility-scale systems. It features dimensions of 2382mm*1134mm and a 66-cell layout design that effectively lowers Voc and increases string size. This design feature significantly reduces tracker and cable costs, leading to a reduction in LCOE by 0.44% to 4.37% compared to 182mm-wafer TOPCon modules. Furthermore, ASTRO N7 incorporates advanced cell and module technologies such as laser-induced firing, super multi-busbar, light-redirecting film, and double-layer coating glass to enhance module power output and reliability. Join us to explore the latest advances in module technology and how they can improve module performance and learn about the economic advantage of rectangular-wafer modules and their benefits at a system level.
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