Lior Kahana

Researchers in India developed a PVT-hydrogen system using air-bubble injection to improve cooling, thermal and electrical efficiency, and hydrogen production. Tested outdoors in Tamil Nadu, the system achieved a peak thermal efficiency of 45.5% and hydrogen production of 15.5 ml/min.

An international research team developed a porous silicon dioxide coating for PV cover glass that combines anti-reflection with passive radiative cooling, increasing solar transmittance while enhancing mid-infrared emissivity. The coating achieved 91.0% solar transmittance and 90% emissivity, with the researchers now planning module-level outdoor testing and studies of large-area scalability and durability.

Researchers at the University of New South Wales have launched a three-and-a-half-year project to examine how inverter-based resources interact with grid protection systems. The AUD 12.9 million initiative will use modeling, simulation and hardware-in-the-loop testing to assess fault-current behavior and protection requirements.

French researchers have developed very-low-bandgap thermophotovoltaic cells with a barrier structure designed to suppress dark current and enable operation at higher temperatures. The cells showed more than tenfold improved performance over conventional devices at temperatures above 150 K, with a photovoltaic effect observed up to 273 K.

Researchers in Malaysia have developed a simplified operating cell temperature model for floating photovoltaic (FPV) systems that incorporates water temperature while remaining compatible with existing nominal operating cell temperature (NOCT) models. The FPV-NOCT model outperformed the standard NOCT approach in validation datasets from Brazil and California, achieving up to 92.3% prediction accuracy.

Researchers have developed a glass-free flexible crystalline-silicon module architecture based on commercial IBC cells and a PET/EVA stack manufactured via roll-to-roll hot lamination. The 2 × 2 mini-module retained 96.12% of its initial efficiency after 672 hours of outdoor testing at a fixed bending radius of 150 mm.

Researchers have developed a PEO-based composite solid electrolyte that combines polydopamine-coated LLZO with a flexible triblock copolymer. The optimized design reached an ionic conductivity of 5.60 × 10−3 S.cm−1 at 60 C and enabled LiFePO4|Li cells to retain 80% of their capacity after 1,000 cycles.

Atmoce has launched an 8 kWh LFP residential battery featuring 5 kW output, extra-low-voltage architecture and 90% AC round-trip efficiency. The IP66-rated system offers up to 15,000 cycles, wall or floor mounting, and a 25-year warranty..

Chinese researchers have proposed combining air-source heat pumps with thermal energy storage to shift electricity consumption to off-peak periods and reduce system costs. The system cut upfront investment by 29.7%, annual electricity use by 21.9 MWh, and carbon emissions by 8.8% compared with a conventional heat pump system.

A Selçuk University researcher has compared six machine learning algorithms for predicting front- and rear-side plane-of-array irradiance in bifacial PV systems. Random forest delivered the best results for both sides, while rear-side irradiance proved more difficult to predict.