Modules & Upstream Manufacturing

The Japanese manufacturer decided to close its CIS module production in October and has now launched its first 250 W monocrystalline product for the residential market.

The Solliance consortium has built a solar cell in a four-terminal tandem configuration that combines a 17.8%-efficient highly near-infrared transparent perovskite cell with a prototype of an 11.4%-efficient c-Si interdigitated back contact silicon heterojunction cell developed by Panasonic.

The past 12 months have proved profitable for polysilicon manufacturers, as selling prices have soared to levels not seen since 2011. However, with major new capacity expansions on the horizon from most of the leading manufacturers, and new players planning to enter the scene, the market balance looks set to shift. Exawatt’s Alex Barrows rounds up where the industry stands and what might happen next.

Furthermore, TBEA has announced a plan to invest in four solar power plants and Flat Glass has agreed to acquire two quartz mines.

Sergio Matalucci reports for pv magazine from the Key Energy event in Rimini on how the Italian solar market is currently dealing with the module price hike and the supply change disruption. According to the president of Italian association Italia Solare, difficulties to source modules in the market have intensified over the last four months.

Scientists in the United States theorized that a new allotrope of silicon – the same element arranged into a different atomic structure – could show greatly improved photovoltaic performance compared to that used in today’s solar cells. The allotrope, Si22, could also have important properties for use in quantum computing, carbon sequestration and other applications – though fabrication and actual physical testing of the material will be needed to back up the theoretical findings presented so far.

An Indian research group has used three different chemicals instead of commonly used hydrofluoric acid to separate silicon from the cell. The technique is claimed to be able to deliver recycled silicon with a purity of up to 99.9984%.

The result was confirmed, once again, by Germany’s Institute for Solar Energy Research Hamelin (ISFH).

The new product has a power conversion efficiency of up to 19.3% and a weight of 11.2 kg. The module is produced with glass fiber reinforced plastic, which the manufacturer says reduces light reflection and opens up new assembly options.

The largest single-quarter drop in three years comes as the American Solar Manufacturers Against Chinese Circumvention propose greater tariffs against Asian-imported modules.