At Intersolar Europe 2025, DAS Solar received the industry's first UVID certification from TÜV Rheinland, recognizing its n-type TOPCon modules' exceptional resistance to ultraviolet-induced degradation (UVID). DAS Solar's approach includes optimized passivation layer designs and UV-conversion encapsulation films, effectively reducing UV stress on cells.
Tested under TÜV Rheinland’s 2 PfG 2944/07.23 standard, which was developed to simulate harsh UV exposure, the DH132NE module demonstrated power degradation of less than 1%, well below the 3% threshold. DAS Solar says these results confirm its modules’ long-term stability and suitability for high-UV environments, such as deserts and high altitudes.
The company adds that the certification validates its materials innovation and self-repair capabilities through photo-induced re-passivation (PIRP). This certification follows the company's unveiling of an advanced UVID mitigation solution at the Solar Energy Storage Future Germany event.
Late last month, DAS Solar announced that it had started constructing its 3 GW solar module factory in France’s Mandeure region (see China’s DAS Solar Breaks Ground On 3 GW French Module Factory).
Solar wafer and cell manufacturer Golden Solar New Energy Technology has announced that its wholly owned subsidiary has entered into a joint venture (JV) agreement with leading solar integrated manufacturer JA Solar and solar cell equipment supplier Gold Stone. The JV aims to convert 4 GW of existing PERC capacity in China into a ‘world-leading’ production facility for hybrid passivated back contact (HBC) solar cells.
Under the agreement, JA Solar and Gold Stone will hold minority and majority stakes in the JV, respectively. While Golden Solar’s subsidiary in Quanzhou will not hold equity, it will license its proprietary HBC solar cell technology to the JV. The HBC upgrade will leverage existing PERC production lines and facilities, using Golden Solar's portfolio of patented technologies. Intellectual property (IP) licensing fees will be calculated based on HBC cell sales and the gross margin differential with TOPCon modules, capped at RMB 0.008/W ($0.0011/W), and will only be payable monthly once the JV turns a profit.
Golden Solar stated that more than 200 GW of global PERC capacity remains idle and ripe for technical retrofitting. To support this transition and reduce costs, the company has developed silver-coated copper paste specifically for HBC applications as a cost-effective alternative to conventional silver paste, aiming to scale up its technology licensing business.
At Intersolar Europe 2025, Astronergy announced a collaboration with TÜV Rheinland to qualify its PV modules under the IEC TR 63279 technical report. This emerging international standard emphasizes rigorous sequential and combined stress testing to simulate real-world conditions, aiming to ensure long-term reliability in extreme environments. The tests go beyond standard IEC 61215/61730 certifications, incorporating environmental, thermal, mechanical, UV, and PID stresses through complex, extended cycles. The first test report is expected by August 2025, with full completion by Q4 2025.
In April, Astronergy was selected as a winning bidder by PetroChina for the supply of 2.05 GW of solar modules (see China Solar PV News Snippets).
Global solar & storage leader JinkoSolar has announced that its cumulative Tiger Neo solar module shipments have exceeded 200 GW, with orders spanning 168 countries and regions and serving over 4,000 customers worldwide. The company now holds a global market share of more than 15.5% and has ranked as the world's top module supplier 6 times.
JinkoSolar claims to hold 467 TOPCon-related patents currently, apart from breaking 28 world records in the TOPCon category and achieving a conversion efficiency of 34.22% for its perovskite-TOPCon tandem cell.
JA Solar has announced that it has delivered the first batch of its DeepBlue 4.0 Pro modules to the 1 GW Suorong PV project in Litang, Sichuan Province, located at an altitude of 4,700 meters. The project is part of the Yalong River Integrated Hydro-Wind-Solar Renewable Energy Base, said to be the largest of its kind globally, with a total planned installed capacity exceeding 8 GW, more than 4 GW of which will come from wind and solar.
In 2024, the Yalong River Integrated Hydro-Wind-Solar Renewable Energy project tendered 5.1 GW of solar PV modules, with JA Solar securing the largest share at 2.4 GW. Of this, 808 MW will be supplied to the Suorong project.
JA Solar recently completed the first batch of module deliveries for China Huadian’s Changli Offshore PV Demonstration Project (see China Solar PV News Snippets).
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