Technology and R&D

Scientists from Israel and France have proposed a PV-plus-thermal-storage (PV-TS) concept that may be applied in regions with low direct solar beam radiation and high levels of global solar radiation. They estimated that the grid penetration rate of a large scale PV plant, when combined with molten salt storage, may rise from around 30% to up to 95%.

Two French companies have collaborated on the development of the Osmo-Watt system, which is powered by solar panels. They claim that the technology can produce up to 100 cubic meters of drinking water per day.

Developed by scientists from German research institute Fraunhofer ISE, the silicon-carbide device claims 98.4% efficiency and could be used in utility-scale photovoltaic projects.

The company’s integrated tracker manufacturer Nclave developed a new system designed primarily for large-form factor modules and with a new algorithm that promises to boost yield in diffuse light conditions.

Scientists in Poland have measured the effect of solar radiation spectra in variable weather conditions on the performance of different kinds of PV module technologies. They found that amorphous silicon panels offer the best response to this effect in stationary or BIPV projects on facades, while crystalline silicon and CIS solar panels represent the best options in projects with trackers.

Gowing Bros has become the first major customer of the LAVO 40 kWh battery in Australia. The system, which features an electrolyzer and domestic fuel-cell tech, will be market-ready in June.

Researchers in the Middle East have proposed a new passive technology to cool off solar modules, based on highly conductive porous materials.

Australian researchers have analyzed different ways to improve the efficiency of PV-powered water electrolysis for hydrogen generation. They include the use of magnetic fields, light energy, ultrasonic fields, and pulsating electric fields. Energy costs remain prohibitive, but molecular movement and the redistribution of molecules in water during electrolysis could open a path to viability.

Batteries based on vanadium or zinc bromide represent the cutting edge of redox flow storage tech, an international research team has claimed. They have identified challenges and opportunities for about a dozen redox flow storage technologies, while providing estimates of their current and projected levelized costs of storage.

Scientists in China found that capsaicin, the natural compound responsible for a chili pepper’s spicy flavor, can also act as a ‘secret ingredient’ in perovskite solar cells, making them both more efficient and stable. The group added capsaicin to the precursor materials of a common perovskite, leading to dramatic improvements in the resulting solar cell.