End of the line for a U.S. solar giant
SunPower, one of the largest, oldest, and most influential solar businesses in the United States, has closed its doors. Residential solar installers in the United States have struggled as interest rates have risen and cash generation has emerged as an issue.
Scientists design all-back-contact transparent solar cell
A research team from South Korea’s Ulsan National Institute of Science & Technology (UNIST) has designed a wire-free transparent solar cell and module with all electrical contacts placed on the rear side. A 16 cm² module achieved a power conversion efficiency of 14.7% and successfully charged a smartphone using natural sunlight.
Paxos Solar unveils glass-glass PV tile with heat pump integration
Paxos Solar has developed a new glass-glass PV tile that integrates with heat pumps, featuring Longi’s back-contact solar cells. The 44 W, 59.5 cm x 48 cm tile can also produce heat for residential systems.
Envertech launches microinverters for PV systems with up to 60 modules
Envertech says it has developed microinverters for PV systems supporting up to 60 modules, allowing up to four modules per unit with separate maximum power point tracking.
France’s 2021-23 PV auctions show price increase despite lower panel costs
The French energy regulator says in a new report that France allocated about 5.55 GW of PV capacity through its auction mechanism for large-scale solar between 2011 and 2013. Despite falling solar module prices, the auction mechanism did not lead to cheaper PV electricity or lower project costs.
New deep learning tech uses electroluminescence images to identify defective PV cells
The novel method uses the YOLOv8 framework, integrating an attention mechanism and a transformer model. It was tested on a dataset of 4,500 electroluminescence images against several other models and its results were up to 17.2% more accurate.
End of net metering not a threat to residential solar profitability
The Netherlands is preparing to end its net-metering scheme, prompting two Dutch research institutes to study the potential impact on PV system profitability. They found that increasing self-consumption rates from 30% to 60% would keep profitability levels stable.
Drone-based electroluminescence services for rooftop PV
Solevi, a German electroluminescence (EL) inspection company, has launched drone-based electrical inspection services for rooftop solar installation in Germany with plans to automate further and expand geographically.
Hygroscopic hydrogel may increase solar module yield by 2.1%
Researchers in China have found that a special type of hygroscopic hydrogel made of the polyacrylamide polymer and lithium chloride may reduce PV module temperature by up to 7.5%. They have also developed a mathematical model to analyze the operational mechanisms and factors responsible for the cooling performance.
U.S. increases and extends clean energy import tariffs on China
The U.S. Trade Representative decided that it will expand tariffs on solar components, batteries, semiconductors, steel, and EVs from China.
