A research group led by Professor Martin Green has published Version 61 of the solar cell efficiency tables. The tables include a world record for a silicon heterojunction cell, announced by Longi earlier this week, as well as five more new results.

AMG Advanced Metallurgical Group has energised its first hybrid storage system based on lithium-ion batteries and vanadium redox flow batteries in Germany. The system reportedly combines the advantages and electrochemical properties of both storage technologies.

Sunova Solar is offering five versions of its new solar panels, with power outputs from 555 W to 575 W and efficiencies ranging from 21.4% to 22.2%. They have a temperature coefficient of -0.31% per degree Celsius.

Japanese scientists have described the steps that need to be taken to improve the average efficiency of CIGS solar modules, from around 18.5% at present to more than 20%. They presented all of the critical technical factors that are currently holding the tech back from broader market adoption.

The International Energy Agency Photovoltaic Power System Programme has standardised guidelines for operation and maintenance programs for large-scale solar plants. It defines O&M performance indicators and standard O&M operator services, as well as tools to analyse PV plant performance and safety.

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.

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.

China manufacturer DAH Solar offers four versions of its new panels, with power outputs ranging from 540 W to 555 W and efficiency ratings from 20.89% to 21.48%. The modules are reportedly ideal for steel rooftops with small installation angles.

Researchers led by Germany’s TÜV Rheinland have created a database of technical risks and mitigation measures for PV installations. Their broad overview of quantification methods has shown that further standardization is required.