Russia

Scientists created a model to study bifacial PV thermal (BPVT) solar panels using jet impingement and built an experimental setup to validate it. They achieved a thermal efficiency of 62.28%, while electrical efficiency peaked at 11.22%.

Researchers have developed a novel passivation process for formamidinium lead iodide perovskite films, which reportedly resulted in solar cells with 23.69% power conversion efficiency, and modules with 21.44% certified efficiency. After 1000 hours, the hetero-polytypic passivated devices maintained 92% of their initial efficiency, outperforming untreated devices.

Researchers have analyzed the viability of floating PV in terms of net present value, internal rate of return, and LCOE. They included 25 European countries in their work, including Germany, the United Kingdom, Spain, and Italy.

In recent years, the Baltic countries have experienced a solar generation boom as the region seeks to kill two birds with one stone. These nations aim to break away from years-long energy dependence on Russia amid growing security concerns while also continuing to prioritize the green energy transition.

While a team of Russian researchers proposed a novel approach to produce hydrogen directly in gas wells, Plug Power and CPH2 secure certification for the hydrogen systems.

A study led by Russia’s Skoltech and China’s HPSTAR suggests that rubidium and cesium additives could improve the efficiency of hydrogen batteries. Researcher Dmitrii Semenok tells pv magazine that “it is a question of changing the approach to the search for promising hydrogen storage materials.”

UK-based researchers have developed a novel method to estimate the amount of defrost cycles a heat pump will experience in the winter and how much energy it would require to implement the cycles. The results of their simulation showed a strong relationship between the number of defrost cycles and the ambient temperature.

Russia’s Hevel Solar said its new modules are based on 166 mm x 166 mm half-cut cells. They reportedly have a bifaciality factor of 90% and a temperature coefficient of -0.26% per degree Celsius.

Russian researchers have transmuted poisonous Sosnowsky’s hogweed into high-grade anode material for sodium-ion batteries. The obtained material has a Coulombic efficiency of 87%, which is on par with the best reported results for hard carbons synthesized from other raw materials.

Russian researchers have developed a heterojunction device based on a new wide-band black material called “black silicide.” The cell has averaged reflection (AVR) of 15% in the spectral range of 200 nanometers to 1,800 nm and purportedly can reach an efficiency of 10%.