SST Technology meets all needs - cost, quality, regulations

SST developed a process for the production of Polysilicon, which on the one hand, due to his simple process structure is easy to operate on the other hand offers an enormous cost saving potential. With respect to its optimized and by TÜV certified Hydrochlorination Unit as well as its only commercially available combination of Disproportionation for the production of Monosilane and CVD-Polysilicon-Deposition on based on Monosilane, it is assumed to be in a unique selling position at the market. In comparison with traditional processes, based on the Siemens-TCS-Process, the SST-process offers a cost saving potential of about 20% while achieving the highest product quality. In terms of global market trends of the Photovoltaic industry the demand for cost effective processes to produce high-quality (high-end) Polysilicon are, especially in the non-European, increasing: Thus, the National Peoples` Congress of the Peoples` Republic of China in its 12th Five-Year-Plan affirmed the importance of environmental protection and in this spirit set the development of renewable energy at top of the political agenda. At the same time strict quality-and efficiency targets are required, which are challenging Polysilicon producers.

In 2014, the Chinese government set up new guidelines introducing even higher quality standards for polysilicon projects to be realized in the future.  Material quality and energy consumption of the SST Monosilane-gas method more than meet the specifications meticulously set out in the Chinese document. The SST MS method is praised by experts and our Chinese partners alike because of its maximum of process safety.

Additionally, there is further potential for the SST-technology in the "sunbelt countries", such as South Africa, South America and South East Asia

EPIA Global Market Outlook for Photovoltaics 2014-2018, EPIA, 2014


Speech of the Chinese Ambassador concerning the 12th Fiveyearplan,, 14.09.2012