Tongwei

Maxeon Solar Technologies has filed a lawsuit against Tongwei Solar in Germany’s Dusseldorf district court for the alleged infringement of its European patent for shingled solar cell technology.

The world’s top four largest polysilicon producers in 2022 were Chinese companies, led by Tongwei with 345,000 metric tons (MT), followed by GCL Technology, Daqo, Xinte, and Wacker Chemie.

While shingled cells have been around for a while, Tongwei’s adoption of the technology is notable as it is a manufacturer with considerable scale. If shingling can overcome some hurdles, it could prove a welcome solution as unshaded sites for PV become elusive in mature solar markets.

A team of international researchers has simplified the deposition of thin film layers in the commercial production of TOPCon solar cells. Via a tube-type industrial plasma-assisted atomic layer deposition (PEALD) technique, they were able to achieve a power conversion efficiency of 22.8% in a 60-cell, 613 W TOPCon module.

Tongwei has also secured another massive polysilicon order and Golden Glass has invested in more heterojunction solar cell capacity. Furthermore, China’s National Energy Administration (NEA) said 23.7 GW of new solar was deployed in China in the first five months of the year.

Two industry experts have provided analyses of the current polysilicon price scenario in a chat with pv magazine and both agreed that polysilicon demand is still growing faster than supply. The price may decrease starting from the second quarter and reach more reasonable levels by the end of the year.

The U.S. ITC has released a report highlighting changes in the domestic solar cell and module manufacturing industry, showing that while there has been an increase in domestic module manufacturing, the overall program’s success, relative to the $740 million in tariffs, has created little measurable benefit.

Robotics in PV: The momentum of China’s solar growth appears unstoppable, driving the hunger for faster, qualitative automated solutions for the domestic PV manufacturing industry. Thus, most new solar manufacturing facilities or production upgrades are equipped with nearly fully automated lines.

Massive 12 billion yuan ($1.8 billion) investment part of Chinese solar firm’s goal to boost its production capacity to 30 GW and become world’s largest solar manufacturer.