Research

Researchers at the Australian National University say they have set a perovskite solar cell efficiency record at 22.6%. This efficiency, however, appears to be lower than that achieved in January by a group of Swiss and Korean researchers who used quantum dots to achieve an efficiency of 25.7% in an area of 0.08cm2 and 23.3% in 1cm2.

U.S. researchers have investigated how rooftop PV systems may affect air and building temperature in urban environments and, conversely, how the urban heat island (UHI) effect may have a negative impact on PV system performance. Their work considered urban air temperature, urban air pollution, the partial shading of the PV system, soiling, building heating and cooling loads, and outdoor shade.

Compiled by an international research group, the best practices were collected from all available guidelines published by national agencies, regulatory bodies, and trade associations.

A Japanese group has developed a storage system with potential applications in residential storage, electric vehicles, drones and Internet-of-Things devices.

Western Australian solar window company ClearVue says it has proven its products can reduce buildings’ carbon emissions by as much as 90%, qualifying the technology for the world’s most comprehensive future building standards for energy performance.

Scientists in the United States have proposed to use a thermochemical energy storage (TCES) technique that stores energy in chemical bonds to recover the heat produced during air compression operations. According to them, this innovation may increase the round-trip efficiency of compressed air energy storage to 60%.

The Australian Renewable Energy Agency has announced $40 million in research and development funding is up for grabs across two streams. Stream 1 consists of cells and modules, and Stream 2 is focused on balance of system along with operations and maintenance. It is hoped the additional funding will spur Australia’s pioneering solar research to push for the federal government’s “ultra low-cost solar” target of $15/MWh.

Recent research from Thailand has shown that solar-plus-storage on floating platforms could be the cheapest option to power energy-intensive aeration systems in aquaculture projects. The battery accounts for around 54% of the capital costs, which is why system sizing would be key for economic viability.

As Australia stares down a deluge of worn out solar panels, recycling – and indeed upcycling – programs are grinding into gear. In Victoria, a site has been found for Australia’s first facility to recover and reuse solar module materials, while Reclaim PV has extended its manufacturer partner and pickup location lists.

Researchers at the University of Wollongong say they have discovered a new form of graphene which will improve both anode and cathode materials in lithium-ion batteries, making them cheaper and more efficient. Collaborating with Sicona, the company has agreed to buy all the researchers’ intellectual property relating to the new material.