Modules & Upstream Manufacturing

France’s National Institute for Solar Energy takes a look at the state of play in the European solar panel recycling industry.

Two different studies published this week show new advances in the use of plasmonic enhancement to improve performance and stability of perovskite solar cells.

Scientists in China have analyzed the impact of residual stress in triple-junction solar cells used in aircraft and satellite applications. The group observed damages such as holes, fractures of grid lines, cracks at the cell level, and fractures of the PV materials.

With Swiss solar equipment company Meyer Burger laying plans for a module fab in North Rhine-Westphalia and Norwegian panel maker REC Group mulling a fab in Sarreguemines, northeastern France, Xavier Daval – from French renewables association the SER – says it is time Europe resumes its path to a stable solar manufacturing industry, not least because of the rising proportion of solar module costs accounted for by shipping.

Longi has announced more cuts to wafer prices, while cell manufacturer Tongwei has started building the first phase of its 30 GW Jintang PV manufacturing base. Risen Energy has also released solid financials, while JA Solar has unveiled plans to start selling its 500 W-plus solar modules.

Scientists from Saudi Arabia have proposed a new PV panel cooling technique which employs an atmospheric water harvester. The device uses waste heat from the PV panel to collect atmospheric water at night and then releases it during the day to cool down the module. The researchers claim the device may also be improved to produce liquid water, which could be used for the cleaning of the modules.

Chinese manufacturer JA Solar has announced a new 525 W+ panel and said the product will be available from the second half. Domestic rival Risen has shipped the first batch of its high-powered modules and intends to stick to pre-Covid-19 plans to ramp up production.

Five testing laboratories led by Germany’s Fraunhofer ISE have begun a ‘round robin’ project to test the effects of ultraviolet light on polymer backsheet materials. Initial results indicate a route to accurate accelerated testing of backsheet UV stability over module lifetimes of 20 years-plus.

A major advantage of this design is the ability to string cables over a longer distance without the support needed in traditional racking approaches.

Three major Chinese PV manufacturers have announced capacity expansion plans over the past week. Chint also released its 2019 financial results, while Kstar unveiled a new inverter supply deal.