Longi plans new 100 GW wafer plant, 50 GW solar cell factory in China
Longi Solar said it will invest CNY 42.5 billion ($6.65 billion) in 100 GW of wafer capacity and 50 GW of solar cell capacity in Shaanxi province, China.
All-perovskite tandem solar cell with 27.1% efficiency via gas quenching
The US National Renewable Energy Laboratory (NREL) has achieved remarkable efficiency and stability for a wide-bandgap all-perovskite tandem solar cell. The scientist developed the device with an inverted architecture and used gas quenching instead of an antisolvent in the manufacturing process.
Lithium sulfur flow battery with 250 Wh/L energy density
Edinburgh-based energy storage solutions specialist StorTera has developed a long-duration, energy-dense, lithium-sulfur-based single liquid flow battery (SLIQ). The tech is said to last for 30 years with minimal degradation.
US startup unveils portable solid-state lithium-ion battery for residential use
California-based Yoshino Technology has developed portable batteries using solid-state Li-NCM cell technology. The four variants come with power outputs of 330 W, 660 W, 2,000 W, and 4,000 W.
Swiss startup makes first attempt to deploy solar on railways
Swiss startup Sun-Ways has developed a patented solution under which it directly rolls out solar modules between railway tracks like a carpet. The panels can be removed at any time for maintenance work.
Cooling solar modules with vacuum pressure
Scientists in Indonesia have developed a vacuum technique to lower the temperature of PV modules below the ambient air temperature. They applied it to a solar module in a casing that is resistant to negative pressure.
Trina Solar starts producing 210 mm n-type TOPCon solar cells
Trina Solar says its industrial tunnel-oxide passivated contact (i-TOPCon) solar cells, based on 210 mm wafers, have started rolling off the production line at its 8 GW factory in China. It will use the n-type cells to produce its new Vertex N modules, with power outputs ranging up to 605 W, and an efficiency rating of 22.4%.
JinkoSolar unveils new TOPCon solar products with record efficiency ratings
Chinese module maker JinkoSolar has released three new TOPCon solar panel variants, ranging in power from 445 W to 635 W. The most efficient modules have a rating of 23.23%. The bifacial factor is up to 85% across the three panel types, with a temperature coefficient of -0.29% C.
Photocatalytic water splitting with 9.2% solar-to-hydrogen efficiency
A US research team has developed a new technique to produce hydrogen from sunlight and water. It works in an indoor environment and uses pure water, concentrated solar light, and an indium gallium nitride photocatalyst.
Why solar needs to slim down on silver
New research from UNSW in Australia outlines the need for solar cell and module makers to reduce or eliminate the use of silver in their products. Based on expected PV growth, in line with climate change commitments, solar manufacturers would require at least 85% of global silver reserves, according to the new study.
