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Zero busbar and high efficiency HJT

Heterojunction (HJT) cell technology offers some of the strongest possibilities for manufacturers to keep squeezing more efficiency and performance out of silicon solar cells. And with its new zero-busbar technology, Huasun aims to do just that. In this pv magazine Webinar, we take a closer look at this and some of the other innovations at work in the Chinese HJT specialist’s latest module offering.


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PV module technology in 2024 is all about n-type. And while tunnel oxide passivated contact cells have so far taken the largest market share, there is still plenty of interest in heterojunction as a potential route to reliable, high efficiency PV modules.

Huasun is one of a small number of companies implementing HJT at serious scale, with 20 GW module production capacity expected in 2024, and plans in place to double this to 40 GW by the end of 2025, at multiple manufacturing sites spread across China.

The company has demonstrated modules in series production with power output of up to 740 W, and efficiencies past the 23% mark. In this pv magazine Webinar, we will take a look at some of the innovations behind these impressive numbers, with particular focus on the zero busbar approach, which Huasun says promises improved module reliability and optimized material consumption – cutting down on silver consumption, which has long been a major challenge for HJT cells, and playing to another HJT advantages by allowing the use of thinner silicon wafers.

We will be joined by Chen Jingwei, technical assistant to the Chairman at Huasun Energy and member of the SEMI China Photovoltaic Standard Technical Committee, who will take us through the features and performance details of Huasun’s latest HJT module. And then we hand over to Ginger Dai, Head of Product Planning at Huasun Energy, for a closer look at Huasun’s zero busbar design, and the advantages it creates compared to other approaches.

Both speakers will also participate in a live Q&A session, offering a chance for the audience to get involved with questions. Don’t miss out on this chance for high level discussion of HJT technology.

pv magazine Webinar content:

  • HJT technology and performance
  • Introducing zero busbar cell design
  • System performance and data analysis
  • Q&A

Questions can be submitted beforehand or during the webinar through a chat window. Mark Hutchins, Magazine Director at pv magazine, will be the moderator of this webinar.

Registration for this pv magazine Webinar is free of charge.


Chen Jingwei, Technical Assistant to the Chairman, Huasun Energy

Chen Jingwei, Ph.D., Associate Professor, Member of the SEMI China Photovoltaic Standard Technical Committee, possesses over ten years of research experience in the field of silicon heterojunction solar cells. Currently, he is engaged in product development management at Huasun Energy.

Ginger Dai, Head of Product Planning, Huasun Energy

Ginger Dai has worked in Photovoltaics since 2009, at Solar Fun (former Hanwha Solar One Qcell, Jinko and LONGI as PLM manager, BD Manager in SEA and Product Planning Senior Manager of utility-scale applications. Now, as Head of Product Planning for Huasun, is responsible for the management and upgrading of Huasun's heterojunction product portfolio, aiming to provide the industry with the best /top-tier HJT products for all solar scenarios like utility, C&I and residential.


Mark Hutchins | Magazine Director, pv magazine

Mark Hutchins joined pv magazine as production editor for our monthly global title in September 2016. He also reports on upstream technology and markets, and new and emerging solar regions for both print and online. Mark has experience in copywriting, music journalism and the fast-paced world of startups.

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