Technology and R&D

Pioneering PV researcher Martin Green has received an abundance of accolades over his 50-year career of fundamental solar research with teams at the University of New South Wales (UNSW). That contribution was further recognised on Sept. 26, when he picked up the WCPEC-8 Award in Milan, Italy. Green spoke with pv magazine about the role of technologies such as PERC cells and his efforts to advance non-toxic thin film semiconductors for the tandem cells of the future.

As Longi and other solar manufacturers kick off massive growth in hydrogen generation capacity, expect large price decreases resulting from steep learning curves, echoing the rapid advances experienced by the solar power industry since the 1970s.

Indian scientists have designed a new all-perovskite tandem solar cell configuration that can reportedly achieve higher efficiencies than similar devices built with the same materials. The top perovskite cell has a wide bandgap of 1.75 eV and the bottom perovskite cell has a bandgap of 1.25 eV.

The Industrial Technology Research Institute (ITRI) and United Renewable Energy (URE) have developed a solar panel that can be easily dismantled to simplify the recycling process. They claim 96% of the materials in the panel can be recovered, including all of the solar cells and front glass.

German researchers have created an algorithm to predict and identify string yield losses or underperforming strings without additional weather data. It could be used to inspect modules, strings, arrays, inverters, and transformers.

Chinese manufacturer JinkoSolar’s newest PV module has an efficiency rating of 23.86%. It is based on its TOPCon mono cell technology, which achieved a record efficiency of 26.1% in October, as confirmed by TÜV Rheinland.

A team of scientists from the University of Cambridge have developed lightweight floating photocatalyst devices that produce green hydrogen and syngas. The leaf-like photoelectrochemical devices show potential for scalability.

KU Leuven researchers have developed rooftop panels that capture both solar power and water from the air. Like traditional PV modules, hydrogen panels are also connected, but via gas tubes instead of electric cables. The researchers are now preparing to bring the tech to the mass market via a spinoff company.

Chinese researchers have assessed the impact of residential rooftop PV arrays on energy use and surrounding air temperatures during extreme heatwaves. They found that panels with higher conversion efficiencies achieved the best results.

Developer Energy Estate has signed a deal with Abergeldie Complex Infrastructure, which has designed vertical manmade caverns for hydrogen storage. Energy Estate co-founder Simon Currie says the partnership is about shoring up projects like its proposed 1.6 GW Hunter Hydrogen Network.