Tongwei achieves 31.4% efficiency for perovskite-silicon tandem solar cell
Chinese researchers, led by a research team from PV Technology Center of Tongwei Co., Ltd, used a sequential annealing process in the fabrication of tandem solar cells, featuring a wide bandgap perovskite top cell on a fully-textured commercial crystalline silicon heterojunction bottom cell. The resulting device had a certified power conversion efficiency of 31.4%, outperforming a 29.43%-efficient control cell.
Tongwei, Longi, JA Solar announce H1 losses
Tongwei, Longi, and JA Solar have predicted steep losses for the first half of 2025, as persistent oversupply and falling solar module prices continue to pressure margins across China’s PV manufacturing sector.
Tongwei achieves 91.7% bifaciality factor for 722 W TOPCon solar module
The Chinese manufacturer said the result was confirmed by TÜV Rheinland. It was achieved through a sunken pyramid structure that reportedly achieves selective-texture on the non-electrode area of rear-side and a zebra-crossing passivation contact structure that is said to ensure excellent passivation.
Solar bloodbath: Titans clash in ruthless price war
The ongoing price war between top global suppliers could catalyse more competitive solar panel pricing in the Indian market, potentially leading to an increase in solar adoption at both the commercial and residential levels.
Solar manufacturers unite to develop standards for 700 W-plus modules
Solar module size standardization will enhance supply chain efficiencies, boost production, and lower costs, according to the 700W+ Photovoltaic Open Innovation Ecological Alliance, which aims to accelerate the industrialization of PV modules above 700 W.
Polysilicon prices could hit all-time low by year-end
Bernreuter Research says in a new report that it expects polysilicon prices to soon dip below the historical low of $6.75/kg, which was reached in June 2020. It says global polysilicon capacity could hit 2.75 million metric tons (MT) by the end of December, with just 200,000 MT of the total outside of China.
Tongwei presents G12 TOPcon solar module series
Tongwei has developed the G12 TOPcon solar module series, with efficiency ratings up to 23.1% and a temperature coefficient of -0.30% per degree Celsius.
JinkoSolar ships 52 GW in first 9 months of 2023
JinkoSolar says it shipped 52 GW of PV modules in the first nine months of 2023, bringing its total shipments to 190 GW since its foundation.
Tongwei plans 16 GW PV cell factory
Tongwei says it will build a new 16 GW solar cell factory in Meishan City, China’s Sichuan province.
Big module makers in China call for wafer standards
Trina Solar, JinkoSolar, JA Solar, Longi, Risen, Canadian Solar, Tongwei, Chint, and Das Solar have issued a joint statement demanding the standardization of wafer sizes.
