Cooling PV modules with plants, coir pith
An Indian-Malaysian research group has investigated the effectiveness of several passive cooling techniques for solar panels, including the placement of plants around the modules or coir pith underneath them, both of which, surprisingly, offered good performance in terms of temperature reduction and power yield.
Energy transition to create 60m solar jobs by 2050
The switch from fossil fuels and nuclear will bring a jobs dividend thanks to the greater labor-intensity of renewables plants, according to a paper published by Finland’s LUT. However, the jobs dividend is unlikely to be evenly spread around the world, with Europe set to be a big winner.
Lithium-metal battery with capacity retention of 88% over 1,000 cycles
German scientists have applied a new combination of cathodes and electrolytes to improve the stability of lithium-metal batteries. They fabricated a device with an energy density of 560 watt-hours per kilogram and a Coulombic efficiency of 99.94%.
Sterling and Wilson Solar announces Q1 FY2022 results
The company’s revenue from EPC and operations and maintenance business stood at INR 1,195 crore, a 12% growth over the same period in the previous fiscal year. The gross margins remained suppressed owing to an increase in module and commodity prices.
Plug-and-play solar module from the Netherlands
Supersola has developed a 315 W, half-cut monocrystalline PV module. It costs €699 and can be coupled with other two panels to form a 1 kW residential PV system.
Lithium-sulfur battery with shorter charging time, longer lifespan
Japanese scientists have developed a new lithium-sulfur battery by using titanium oxide and titanium nitride to prevent the formation of polysulfides during the fabrication process. This allows the battery to retain 85% of its capacity after 500 cycles at 2 C.
Recovering waste heat from solar cells via a thermoelectric generator
Scientists in Italy have created a hybrid thermoelectric photovoltaic (HTEPV) system based on a thermoelectric generator and a wide-gap perovskite solar cell. The device is able to recover waste heat from the PV unit and produce additional power. According to its creators, this configuration needs large gap cells as these are less sensitive to temperature in terms of efficiency.
Novel design for east-west solar parks reduces soil deterioration
Researchers from the TNO in the Netherlands have proposed two novel east-west PV plant designs that are claimed to increase soil quality underneath the solar panels. Both approaches are said to provide a 77% ground coverage ratio, which compares to a 90% ratio in conventional east-west oriented projects.
Hyundai and UL ally to give EV batteries a second life
The two agreed to advance safe deployment and use of second-life battery energy storage systems.
Sandia researchers develop new grid-scale energy storage battery
The battery operates at 230 degrees Fahrenheit, opening what researchers said could be “a whole cascading cost savings” including everything from less expensive materials to less insulation.
