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Canadian Solar presents 660 W ‘low-carbon’ heterojunction module with 24.4% efficiency

The new products are available in nine versions with power output ranging from 620 W to 660 W and power conversion efficiency spanning from 23.0% to 24.4%. Canadian Solar said the panels have a carbon footprint of 285 kg CO₂eq/kW, which is reportedly one of the lowest among all silicon-based solar modules worldwide.

US authorities warn of hidden radios in PV-powered highway infrastructure

The US Federal Highway Administration (FHA) has warned that cellular radios have been found in unspecified foreign-made inverters and batteries used in PV highway infrastructure, according to Reuters. pv magazine speaks with cybersecurity expert Uri Sadot about the risks.

Analysis of 6,276 connectors for rooftop PV systems

Sandia National Labs researchers have created a new dataset on the rates and types of rooftop PV connector failures. Their analysis has shown that tight wire bending radius, extra dirty connectors, and loose nuts are the most common failure causes in 6,276 connectors deployed between 2014 and 2017 across seven U.S. regions.

Huasun achieves 34.02% efficiency for perovskite-heterojunction solar cell

The Chinese manufacturer said the result was achieved thanks to new perovskite crystallization additives and high-mobility carrier transport layer materials.

JinkoSolar launches 670 W TOPCon solar module with 24.8% efficiency

The Tiger Neo 3.0 panel features an 85% bifacility factor that translates into 553-570 W of rear side power output, according to the Chinese manufactuer. The new product is claimed to be the “world’s most powerful solar module.”

Talon PV, Fraunhofer ISE set up pilot TOPCon solar cell production in Germany

The pilot production line will be deployed at Fraunhofer ISE’s Photovoltaic Technology Evaluation Center (PV-TEC) in Freiburg and will produce TOPCon solar cells in the G12 format.

Confused about PV connectors? Words matter

The National Renewable Energy Laboratory and Sandia National Labs have created a new nomenclature for PV connectors to reduce confusion amongst installers and developers, while improving deployment practices. They catalogued a sampling of twenty-five commercially available 4 mm connectors.

Advantage of back-contact solar modules in shading scenarios is limited to specific conditions, study finds

Researchers from Trina Solar and China’s Nanchang University claim to have verified that back-contact solar modules outperform TOPCon modules only when fewer than three cells in a substring are shaded. Their findings were published in a peer-reviewed scientific paper.

UNSW study shows impact of soldering flux on TOPCon solar cell degradation

UNSW researchers have investigated the impact of two types of soldering fluxes on TOPCon solar modules under damp heat conditions and have found that “no-clean” soldering fluxes can cause severe corrosion of front silver-aluminum contacts. The researchers have also found that denser metallisation structures and lower aluminium content improve corrosion resistance.

Mitsubishi, Evhacs launch world’s first integrated heat pump, EV charger

The integrated system is claimed to efficiently provide dynamic load balancing, while supporting demand-side management and future smart grid applications. The heat pump technology comes from Mitsubishi’s Ecodan, Mr. Slim, and M heat pump series, which Evhacs modified for integration with the EV charger.

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