Technology and R&D

The power electronics company is offering a product which can work on and off the grid and enables the charging of dead batteries using a rooftop solar array.

A US study has suggested the raised energy yield of bifacial perovskite devices effectively means they could have a lower environmental impact than conventional crystalline cells. The researchers considered single-junction cells with high and low bandgaps and similar, multi-junction devices with two and four-terminal structures.

Scientists led by China’s Nanjing University discovered that a chemical commonly used for bleaching in the textile industry can also serve as a performance-boosting additive to mixed lead/tin perovskite thin films. Using this additive, they were ultimately able to fabricate a two perovskite tandem cell measuring 1.05cm² that achieved 24.2% efficiency.

Scientists led by the University of Ontario modeled the performance of bifacial modules in floating PV applications, finding that in a north/south orientation at a 30 degree angle, the modules could receive as much as 55% more sunlight than a monofacial module in the same setup.

The demonstrated device, according to the academics, is built with interfaces between the active cell layers that improve the top cell carrier collection. The cell was built with texturing and a hydrogenated amorphous silicon (a-Si:H) passivation of a silicon back surface.

Scientists led by staff from Germany’s Fraunhofer ISE have demonstrated a new laser printing process in pilot production, which could replace silver paste and screen printing in solar cell manufacturing. The system is said to offer much more flexibility in the layout of contact fingers on the cell surface and a wider choice of metallization materials.

Japanese scientists have replaced common pyranometers with PV module irradiance sensors to measure the I-V curves of crystalline silicon PV modules. The sensors provide highly precise outdoor measurements, the researchers said.

A global research team has developed a parabolic trough linear concentrating photovoltaic-thermal system to produce heat and electricity, for both residential and large-scale applications. The PV unit relies on Azure Space’s multi-junction solar cells, based on indium gallium phosphide (InGaP), gallium arsenide (GaAs) and germanium (Ge).

Startup SunDrive has secured US$2.2 million in funding from the Australian Renewable Energy Agency to help scale its low-cost, high-efficiency solar cell manufacturing process.

A small-area trial of artificial intelligence and blockchain-based energy trading software demonstrated big improvements across all renewable energy performance metrics. The port authority now wants the system across all its premises.