science

French start-up Solaire Box has raised €1.5 million to back its business supplying wooden houses complete with PV rooftops. The buildings cost €1,700-2,000/m² and feature PV modules made by French firm Systovi. The company plans add to add features such as energy storage systems and carbon-free heating.

A U.S. research group has developed a new solar cell, based on six active photoactive layers, to capture light from a specific part of the solar spectrum. The scientists claim that they could potentially reach a 50% efficiency rate with the new cell.

Researchers in Australia and China used intensity-modulated photoluminescence to map the series resistance of perovskite solar cells with a technique which could further understanding of the causes of instability issues in such devices.

Griffith University scientists have unlocked a catalytic process to enhance the breakdown of water into hydrogen and oxygen and bring Australia a step nearer clean, efficient hydrogen fuel.

German scientists have developed a new process for the formation of a phase pure kesterite Cu2ZnSnSe4 (CZTSe), which they claim can improve the material homogeneity and suppress the well-known issue of tin losses. The new technique is based on stacked elemental and alloyed precursors with a Zn/Cu-Sn/Zn precursor structure.

Two Fraunhofer institutes and four industrial players are working together to develop a concept that will facilitate the use of vehicle-integrated solar modules in electric vehicles and trucks. The three-year “Lade PV” project will also focus on PV components and manufacturing processes.

Chinese researchers have used an industrial-grade, 720 W ultrasonic cleaner – with a frequency rating of 28 Khz and 1,000 W of heating power – to separate backsheets from end-of-life PV modules. They’ve concluded that an ultrasonic power of 720 W is ideal for the separation process.

Dutch research center TNO is setting up a test facility for floating PV plants in Oostvoornse, where it will analyze the impact of wind and waves on floating structures and module yield. TNO Senior Project Manager Jan Kroon told pv magazine that it will assess module damage and the impact of waves on light absorption. It has already found that the ratio between wave-height and wave-length is a key factor in mismatch losses, while noting that optimizers and micro-inverters on panels could mitigate losses.

French solar thin-film specialist Armor has designed a retractable automotive solar cover. It has deployed an initial prototype on a Gazelle electric car, but it said that the cover can be used on any kind of electric vehicle.

A French-Turkish research team has created an economic model to optimize scheduling for solar-powered EV charging units. The proposed model suggests that such projects might be more profitable today than at the end of the decade, depending on a wide range of variables.