Hong Kong

Scientists have used a dual-functional, material-sharing strategy with ethyl viologen diiodide to achieve synergistic performance enhancement in PV-powered batteries. The system was reportedly able to power a wearable glucose monitor for 24 hours.

Scientists in Hong Kong have developed a patch that effectively cools down PV panels and utilizes waste heat for freshwater production. It has three layers: an atmospheric water harvester, a thermal regulation layer, and an adhesive layer. Maximum power density reportedly increased by over 28% in a folded version of the ultra-cooling patch.

Conceived by scientists in Hong Kong, the solar balustrade integrates bifacial PV panels and is considered an ideal solution for “cool roofs.” Roof albedo and module orientation are critical drivers of system performance.

Scientists have created a novel probabilistic model for 5-minutes ahead PV power forecasting. The method combines a convolutional neural network with bidirectional long short-term memory, attention mechanism, and natural gradient boosting.

A group of scientists has developed an open-source dataset comprising three years’ worth of data from Hong Kong’s largest behind-the-meter rooftop solar power project. Power generation was collected at 5-minute intervals, and meteorological data at 1-minute.

New research from China shows that ultra-narrow interconnections may considerably improve organic PV performance. The scientists built a 11.08 cm2 panel with an impressive geometric fill factor of 98%.

Using atomic layer deposition, a research team from the City University of Hong Kong has created an an oxygen-deficient tin oxide layer to replace the more common fullerene electron transport layer in perovskite solar cells. The result is a 25%-efficient device that is able to retain around 95% of its efficiency after 2,000 h.

Hong Kong University of Science and Technology (HKUST) researchers have gained insights into perovskite microstructure. After removing grain surface concavities in the crystalline grains of perovskite, they fabricated a solar cell with improved efficiency retention under standardized thermal cycling, damp heat, and maximum-power-point tracking tests.

Scientists have manufactured and analyzed a novel coating for semi-transparent photovoltaic glazing that reportedly offers remarkable energy yield and a low heat gain rate. Through outdoor experiments, the researchers also found the glazing also provides satisfactory high-quality indoor lighting conditions.