Technology

A surge of community battery trials in Australia is seeking to make better use of the country’s vast distributed solar resource. But the results so far have battered expectations. pv magazine Australia’s Natalie Filatoff and Bella Peacock explore the motivations, challenges, and outlook for sharing and monetising solar rooftop riches.

Ionblox says it will use $32 million of series B funding to support the buildout of a novel silicon anode electric vehicle battery.

The Bern University of Applied Sciences in Switzerland has published the initial results of a survey on the durability and performance of residential PV inverters and power optimisers over a 15-year period. They found that more than 65% of the inverters did not present yield-relevant faults by their 15th year of operation.

Modular solar array manufacturer 5B will work with researchers from the University of Sydney to optimise the design of large-scale solar farms in a bid to minimise temperature-induced panel efficiency losses. The research project secured funding support in the latest round of the Australian Research Council’s Linkage Project Grants program.

Malaysian researchers have developed a system that can absorb heat from PV modules and transmit it to a nanofluid, in order to transform it into thermal energy and use it for different applications. The panels have an overall efficiency of 89%.

A research team at the Australian National University have claimed an efficiency of 30.3% for a tandem solar cell made by mechanically stacking a perovskite cell and a silicon cell. The achievement meets the first of three 2030 “stretch goals” set by the Australian government.

Solar and storage analyst Sunwiz is predicting an inversion of many of the trends that dominated the industry in 2022. While rooftop solar has bounced back after a disappointing year, Sunwiz founder Warwick Johnston tells pv magazine Australia, the utility segment’s position looks dire.

Scientists in Sweden have compared AC and DC topologies in PV-powered buildings using battery storage. They have found that DC distribution systems can achieve energy savings when they are combined with solar-plus-storage systems.

Chinese scientists have analysed reports of thermal issues with vanadium redox flow batteries (VRFB) and existing thermal management methods. They say the operating temperature should be maintained in the range of 10 C to 40 C to ensure VRFBs with high efficiency, weak side reactions, high electrolyte stability, and low crossover.

New data from Cornwall Insight Australia’s EV uptake model shows that under an extreme scenario, 22 million electric vehicles (EVs) are expected to be part of the National Electricity Market (NEM) states’ fleet by 2052.