Technology and R&D

The Australian peer-to-peer energy-trading pioneer has purchased a 250 kW solar system that will use its new energy data management and settlement system to provide greater visibility on renewable energy sold to consumers under power purchase agreements.

Researchers from Saudi Arabia’s King Abdullah University of Science and Technology have created flexible solar cells made of crystalline silicon. They claim to have stretched a crystalline silicon cell’s surface by around 95% while maintaining conversion efficiency of around 19%.

The government of the state of Western Australia has allocated funding from its Renewable Hydrogen Fund toward seven feasibility studies that could pave the way for significant renewable hydrogen projects around the state.

An international research group led by CIC EnergiGUNE, a Spanish research center, is designing new redox organic flow batteries. The researchers claim the batteries will offer longer duration, as well as higher power and energy densities, in a more environmentally sustainable format. The European Commission provided €3.8 million in funding for the initiative.

U.S. researchers claim to have improved the stability of one of the most promising halide perovskites – α-FAPbI3 – by squeezing the compound’s crystal lattices. The authors of the research prevented the crystal assuming an hexagonal shape at the room temperatures required for a PV device to operate properly.

A team at the U.S. National Renewable Energy Laboratory has come up with a new process that would reduce the production cost of highly expensive – and highly efficient – gallium arsenide cells.

The research group that developed the cell said the two materials used to produce it, dubbed 2PACz and MeO-2PACz, will soon be commercially available. The material consists of 1-2nm of self-assembled monolayers deposited on the surface of the perovskite by dipping it into a diluted solution.

Barium zirconium sulfide is another chalcogenide perovskite being tested in relation to the development of more efficient solar cells. Researchers at Buffalo University, in New York state, have created a thin-film based on the material they say offers significant light absorption and good charge transport.

Scientists at the Beijing Institute of Technology have identified the most suitable areas for solar parks in the Chinese capital using a geographical information system and a new multi-criteria decision-making technique: the ‘best-worst’ method. They claim the approach can help establish technically and economically viable projects.

A research team from the University of Huddersfield used electron microscopy to analyze micro-cracks in 4,000 polycrystalline silicon solar cell samples. The results showed power losses may vary from 0.9-42.8%, and increased temperatures due to micro-cracking may favor the formation of permanent hot spots in the cells.