Manufacturing

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.

U.S. residential solar installer Sunrun reported strong solar deployments and revenue to start 2020, even with orders decreasing by as much as 40% for periods in March. Micro-inverter manufacturer Enphase’s first-quarter revenues exceeded expectations as the company set an all-time gross margin record and announced plans for a new manufacturing location.

Startup Solean claims that its new fully automated production equipment offers a highly flexible way to bring panel manufacturing back to Europe.

The Chinese conglomerate has revealed how it will further integrate artificial intelligence (AI) in its string devices this year. The approach includes the transformation of inverters into smart PV controllers, the development of AI inference modules and the creation of an AI training and inference platform. Machine learning will also be incorporated into operations and maintenance, grid management and PV plant design.

Appetite may have been lacking among private investors – at a time when global stocks are tanking amid Covid-19 and global recession fears – but the eco-friendly new Finnish government, and neighboring administrations, have stepped in to fill the breach.

Asier Ukar, director of the Spanish unit of German technical advisory PI Berlin, tells pv magazine about his experiences of conducting quality control inspections in Chinese factories during the global pandemic.