DMEGC begins production of new TOPCon modules at new Chinese plant

September 4, 2023
Facebook
Twitter
LinkedIn
Reddit
Email
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%.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

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.

9 March 2027
Location To Be Confirmed
PV CellTech Global will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. Join us in Q1 of 2027

Read Next

December 23, 2025
The PV Review, 2025: The culmination of years of oversupply of Chinese modules caused module prices to fall, slashing manufacturers’ profits.
December 23, 2025
Chinese researchers have developed a process to boost the efficiency and bifacial performance of TOPCon solar cells while reducing silver consumption.
December 22, 2025
The Chinese government has lodged a complaint against India with the World Trade Organization over alleged subsidies to its solar industry.
December 22, 2025
The PV Review, 2025: this year has seen many papers and reports on solar PV modules reliability and performance issues, especially with TOPCon.
December 19, 2025
Wang Bohua, honorary chairman of the China PV Industry Association (CPIA), said that the polysilicon production in China experienced its first year-on-year decline since 2013, while wafer production registered its first year-on-year decline since 2009.
December 18, 2025
The latest edition of our print journal, PV Tech Power, is out today and available to download, where we deep dive into PV quality assurance.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
November 24, 2026
Warsaw, Poland