Enel集团旗下的3SUN公司在意大利卡塔尼亚的千兆工厂正推动欧洲太阳能光伏生产。该公司最初专注于薄膜技术，后转向HJT技术，并在生产中实现了24.6%的电池效率。目前，该工厂已启动600兆瓦的生产，未来产能将提升至每年3吉瓦。该工厂采用西方设备，并配备了PECVD、PVD等先进工具，每天可生产80万个太阳能电池和1.4万个组件。3SUN通过使用纳米晶硅层和先进的TCO靶材提高了电池效率，并致力于降低银浆使用量。未来，3SUN将专注于串联HJT和钙钛矿技术，目标是实现30%的效率。

🏭 3SUN在意大利卡塔尼亚的工厂是欧洲首个专注于HJT技术的千兆光伏工厂，目前已启动600兆瓦的生产，并计划将年产能提升至3吉瓦。

🔬 通过采用纳米晶硅层和先进的TCO靶材，3SUN显著提高了电池效率，同时致力于降低银浆的使用量，目标是将银浆用量降至40%以下。

💡 3SUN的生产过程还采用了LED光浸技术，用于HJT电池的在线后处理。未来，公司将专注于金属化工艺，引入银铜浆和0BB技术，并最终实现铜电镀以取代银的使用。

🎯 3SUN的HJT技术路线图旨在实现27%的太阳能电池效率，并正在进行多项技术改进。该公司与CEA-INES合作，已在串联电池的扩展区域实现了29.8%的电池效率，未来目标是实现30%的效率。

☀️ 未来，3SUN的重点将放在串联HJT和钙钛矿技术上，致力于实现更高的转换效率。

3SUN, an Enel Group company, is bringing GW-scale solar PV production to Europe with its Catania, Italy Gigafactory. Having started as a thin-film company in 2010, it moved on to HJT in 2018 achieving 24.6% cell efficiency in production 2 years later. Currently, it has started with 600 MW production at what is Europe’s 1st PV Gigafactory in Catania and the 1st to focus on HJT technology. Soon the fab will ramp up to 3 GW annual capacity, all built with Western equipment. At the TaiyangNews 4-day High Efficiency Solar Technologies 2024 Conference in December 2024, on day 2 3SUN’s CTO Cosimo Gerardi shared the development of its innovative HJT technology and the future roadmap of the manufacturer during his presentation. This factory with solar cell and module production is upgraded with new tools including PECVD, PVD to produce 800,000 solar cells/day and 14,000 modules/day, translating into 300 million cells/year and 5 million modules/year.  The use of a nanocrystalline silicon layer significantly enhances cell efficiency, said Gerardi. It has been able to enhance cell efficiency with the use of an advanced TCO target material leading to less free carrier absorption, increased fill factor and lower contact resistivities between PECVD/TCO and TCO/metallization. Quality improvement & cost reduction remains high on agenda for 3SUN. It started with using 60% silver paste, which it now targets to lower than 50% and eventually further down to under 40%.  3SUN’s production also incorporates LED-based light soaking process for in-line post treatment of HJT cells as part of its smart processing. Future process improvements will see 3SUN working on metallization, introducing silver copper paste and 0BB technology, and copper plating as the target is to eventually do away with the use of silver.  Its HJT roadmap targets 27% solar cell efficiency with several technical improvements on the way. However, the future focus of the Italian manufacturer is on tandem HJT and perovskite, achieving 30% efficiency. 3SUN has already achieved a cell efficiency of 29.8% on extended area of its tandem cell in collaboration with CEA-INES.  For more presentation videos and conference summaries for all 4 days of the TaiyangNews High Efficiency Solar Technologies 2024 Conference, click here for days 1 and 2, and here for days 3 and 4.