Panasonic is now testing perovskite-based power-generating glass with Japanese property developer Mitsui Fudosan Residential at a new building in Kanagawa prefecture, Japan.

Sharp’s new IEC61215- and IEC61730-certified solar panels have an operating temperature coefficient of -0.30% per degree Celsius, with 21.51% efficiency.

Built by Danish researchers, the device also achieved a power conversion efficiency of 5.0%. They designed the cell with a soda-lime glass substrate, a tin oxide (FTO) layer, an electron transport layer made of titanium oxide (TiO2), a selenium absorber, a molybdenum oxide (MoOx) layer, and a gold (Au) metal contact.

Switzerland’s Dhp Technology AG says it plans to deploy new retractable PV systems at 45 motorway service areas in the Swiss cantons of Valais and Bern. The foldable arrays can be retracted and protected during extreme weather conditions or hail storms.

Dutch scientists have developed a perovskite-PERC tandem solar cell based on a new type of tunnel recombination junction that reportedly offers an improved device efficiency distribution. The cell uses a nickel(II) oxide layer that is intended to reduce electrical shunts in the perovskite top cell.

An international research team has developed high-efficiency solar cells with a 21.59% efficiency rating by using an all-inorganic phase heterojunction approach. The team used an anti-solvent-free DHA method to produce high-quality, inorganic perovskite thin films, resulting in better device performance under ambient conditions.

Italian scientists have developed a flexible indoor perovskite solar cell with 32.5% efficiency. Their design uses a PET substrate combined with a tetrabutylammonium bromide layer over the perovskite absorber. This additional layer effectively reduces defect density and enhances the stability of the underlying 3D perovskite structure.

Overirradiance conditions may affect the operating performance of photovoltaic plants, the stability of the electrical grid, and the efficiency of inverters. A research team has warned these effects are currently not being given proper consideration by the solar industry.

Biwatt Power, a Chinese manufacturer, has developed new residential sodium-ion batteries with an efficiency rate of 97% and a projected lifespan of more than 3,000 cycles.

Scientists in India have proposed to use solar modules at the end of their lifecycle as a building material for low-cost small housing units. With solar module recycling currently not viable economically, the researchers said their approach makes conventional solar panels into BIPV products without any modifications.