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AT&S and Solland Solar Build Prototype Line for Back-contacted Photovoltaic Modules
January 19, 2010 |Estimated reading time: 2 minutes
VIENNA — As part of an ongoing technology partnership, AT&S and Solland Solar will build a prototype line for photovoltaic modules with Sunweb back-contacted solar cells. The technology uses processes and materials that are standard in the printed circuit board (PCB) industry but are not yet applied in photovoltaics. Construction of the prototype line marks a milestone toward commercial availability later in 2010.
The overall goal of the technology partnership between AT&S and Solland Solar is to jointly develop and put into industrial production the innovative back-contact module technology for Sunweb cells. The technology uses processes and materials that are standard in the printed circuit board industry but are not yet applied in photovoltaics. Solland Solar’s Sunweb concept enables module efficiency for multi-crystalline silicon solar cells with visual appeal and low production cost.
In the first year of the partnership, Solland Solar’s basic idea of the Sunweb back-contacted solar cell was combined with new interconnection and switching technology from AT&S. All components and production processes have been developed accordingly for use in volume production. Extensive tests were completed, establishing that the project satisfies all the necessary reliability, safety and performance requirements.
The next phase in the project, the construction of a joint prototype production line at AT&S’s Leoben-Hinterberg plant in Austria, is scheduled for completion by the summer of 2010, and will incorporate the results achieved during the last year into the industrial production process. Additional objectives include further optimization of the production process and certification under IEC 61215 and IEC 61730. Selected reference projects are being implemented in parallel, to highlight the cost effectiveness of the new technology and its advantages in practical operation.
The module concept offers ample scope for further developments to increase efficiency and lower cost of solar energy. AT&S and Solland Solar are working intensively together to exploit this potential.
Austria Technologie & Systemtechnik Aktiengesellschaft (AT&S) is a European PCB manufacturer with expertise in high-density interconnect (HDI) microvia circuit boards, which are chiefly used in mobile devices. The Group also targets automotive, industrial, and medical technology sectors. AT&S has three production facilities in Austria (Leoben, Fehring, Klagenfurt) and one each in India (Nanjangud), China (Shanghai), and Korea (Ansan, near Seoul). For more information, visit www.ats.net
Solland Solar is a Dutch/German solar technology company developing and producing solar cells and modules. It is a 100% subsidiary of Delta, Dutch utility company, and holds the patent for the Sunweb concept. For more information about Sunweb and Solland Solar, visit www.sollandsolar.com