Modules & Upstream Manufacturing

Researchers from Switzerland’s École Polytechnique Fédérale de Lausanne have used molybdenum oxide as the hole-selective contact in an heterojuction silicon cell. The scientists claim the compound can compete with traditional contacts despite a lower level of optimization.

Solar module manufacturers should begin testing new technologies in higher-value niche markets, say scientists at the U.S. institution. For example, bringing perovskite technology directly to the mainstream market remains prohibitive in terms of initial investment but segments such as building-integrated PV or microelectronics devices may offer better routes to commercial maturity.

Korean researchers claim it is possible to extract more than 10% of ‘hidden electricity’ in crystalline solar cells using a new encapsulation process based on poly‐dimethylsiloxane coatings and a three-dimensional module structure. Compared to EVA films, the new coating is said to avoid cutting off short-wavelength light.

In sunny San Diego for Intersolar 2020, we’re seeing a new idea for tracking rooftop solar modules, diodes moving to cell level, two types of building-integrated solar products and some solar hot water.

The EyeCon module has a hybrid power output of 326 W/m² or a bifacial efficiency of 28%, calculated with the available global plus backside irradiance. According to the research team, the silicon cell generates between 23 and 42 W/m² of additional power when the diffuse irradiance component increases from 8 to 30%.

The Chinese-Canadian module manufacturer will supply panels to the U.K.-based developer over several years. The modules are destined for projects in the United States and Australia.

The Japanese electronics company has produced a solid-state, dye-sensitized solar cell for integration into sensors and consumer electronics. The company says the device can generate electricity from indoor light.

Analyst Johannes Bernreuter says most of China’s polysilicon production capacity is in regions away from the center of the coronavirus outbreak. He added, however, 27% of the nation’s 510,000-ton annual polysilicon capacity could be affected.

The coronavirus outbreak in China could raise solar module prices in the near term as manufacturers have already begun experiencing wafer and solar glass shortages. Production rates are also being affected by an extended new year holiday introduced by the authorities as a measure to deal with the virus, and the requirement workers from infected areas quarantine themselves for two weeks.

Electronics corporations Panasonic, Kyocera and LG have filed results for the nine months to December 31. All three reported uplifts because of their solar activity and LG has said it will dive deeper into energy storage. Panasonic is deepening its commitment to automotive batteries through a new joint venture with Toyota.