Modules & Upstream Manufacturing

Also, heterojunction module manufacturer Huasun has begun assembling production lines at its new 2GW factory and Trina Solar has agreed to buy 290 million wafers from Beijing Jingyuntong Technology.

The city government of Florence, in Italy, is installing solar-powered, self-compacting garbage cans that are claimed to reduce emptying operations by 94% compared to traditional bins. The devices were provided by Korean manufacturer Ecube Labs.

The Japanese manufacturer blames increasing wafer prices and logistics costs for its decision.

Developed for applications in BIPV, vehicle-integrated solar and smart glasses, the solar cell was built with an ultra-thin, semi-transparent, triple-cation perovskite film and gold nanorods (Au NRs). The device achieved an open-circuit voltage of 1097.1mV, a short-circuit current of 17.11mA/cm² and a fill factor of 73.12%.

Solar modules from Trina Solar, Canadian Solar, and Felicity Solar were tested in a prototype of a photovoltaic-thermal collector that uses excess heat from the PV elements to heat water. The system uses a thermally insulated helical coil heat exchanger to recover panel heat and a solenoid valve to allow water recirculation when the temperature below the PV module rises significantly.

Xinyi Solar has proposed a dividend for the second year running as it announced shareholders would bank net profits of $630 million despite rising materials and shipping costs last year.

Dutch company Rads Global Business has developed an anti-soiling coating for solar PV modules that are at least two years old. The new product is claimed to increase power yield by up to 7% and to have a payback time of 2.5 to four years depending on the dust level of the site.

US analyst Clean Energy Associates made some notable predictions in its Q4 survey of the world solar manufacturing market, including echoing predictions made elsewhere that the new polysilicon production capacity coming online now will help arrest the spike in solar panel prices.

The 19.2%-efficient perovskite cells used in the module rely on an electron layer based on tin oxide that was deposited via chemical bath deposition. This technique, according to the device’s creators, has made it possible to have a relatively small drop in efficiency from small cells to the 40cm² module.

The tandem cell was fabricated by German scientists through a process flow that is compatible with industrial, mainstream PERC technologies. According to its creators, the device has the potential to exceed efficiencies of over 29% with adjustments in the perovskite thickness and bandgap.