From the humid, salt-laden breezes of coastal regions to the thin, sun-drenched air of high-altitude deserts, DAS Solar's N-type modules have demonstrated outstanding resilience and stable power output under some of the world's harshest operating conditions. Tested across environments of extreme UV radiation, high temperature differentials, strong winds, and abrasive sandstorms, these modules have not only maintained performance but also set new benchmarks for durability and reliability in the global PV industry.
In Golmud's Wutumeiren region situated at over 2,800 meters above sea level, the atmosphere is thin, ultraviolet radiation is extreme, temperature fluctuations are severe, and windblown sand is a constant threat. This combination makes the region one of the most challenging testing grounds for solar installations. Over the course of more than 900 days of real-world operation, DAS Solar's N-type modules have maintained high performance and long-term stability, demonstrating the brand's technological strength in weathering nature's toughest tests.
High-altitude regions like Golmud experience significantly stronger solar radiation than lowland areas, with prolonged sunshine and elevated UV intensity. This can accelerate the degradation of encapsulation materials, reduce light transmittance, and impair sealing performance. To counteract this UV aging effect, DAS Solar's R&D team developed advanced UV-resistant encapsulation solutions, upgrading both materials and structural design. These measures effectively block harmful shortwave UV from penetrating to the cell layer, while converting certain wavelengths into beneficial blue light to enhance spectral response. As a result, the modules achieve a UVID value of less than 1%—well below typical industry standards—and have been certified by TÜV Rheinland for UV resistance.
The plateau's thin atmosphere and low humidity also mean extreme diurnal temperature swings, with scorching days and sub-zero nights. Such conditions can place severe stress on PV structures. DAS Solar addressed this by optimizing encapsulation processes, selecting materials adapted for alpine climates, and subjecting the modules to rigorous thermal cycling at the PVEL laboratory with 600 cycles between -40℃ and 85℃. Post-test evaluations confirmed no significant performance loss, with structural integrity fully preserved.
Golmud's climate also brings high winds, hail, and heavy snow loads. DAS Solar strengthened its module designs with reinforced frames to better distribute loads and improved encapsulation mechanics for higher overall durability. The modules passed static load tests of 5,400 Pa on the front and 2,400 Pa on the back, repeated three times, as well as dynamic load simulations of 1,500 Pa ±100 Pa for over 1,000 cycles. In hail-resistance testing, they withstood 35 mm ice balls striking 11 times with minimal power degradation of around 0.07%, far outperforming IEC's allowable limit of 5%.
Frequent sandstorms occurring on over 100 days a year pose another challenge. Windblown sand can abrade module surfaces and cause microcracks, ultimately reducing power output. DAS Solar's N-type modules feature dual-glass construction and high-strength steel frames, delivering 300% greater structural strength than conventional aluminum frames and offering superior impact and abrasion resistance. This robust design ensures stable output and long-term visual integrity, even under relentless sandblasting conditions.
By withstanding UV radiation, temperature extremes, high winds, hail, and abrasive sand, DAS Solar's N-type modules have proven themselves as a reliable power source for high-altitude, high-stress environments. The Golmud case stands as a compelling demonstration of the company's commitment to engineering PV products that can thrive in the most demanding operational settings, delivering consistent, efficient, and long-lasting performance for global clean energy projects.
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