Study Report on Load Performance of Large-size & Oversized PV Modules
As a product working for 25 years or even 30 years, generating electricity continuously for PV module is essential to maximize the value of customers. Therefore, the module should be designed in consideration of the ability to resist extreme climate throughout the full life cycle. To verify the ability of the module to resist external mechanical stress, LONGi and TÜV NORD jointly carried out a wind tunnel test to verify the ability of the module under a dynamic load, and LONGi also carried out a static load test on the large-size module (LONGi Hi-MO 5, 2.26×1.13m) and the oversized module (2.38×1.30m) to simulate the bearing capability of the module under outdoor snow load. The test results showed that the stiffness of both monofacial and bifacial Hi-MO 5 is better than that of the oversized modules and can pass the thresher test at the wind speed of 60 m/s. The static load test showed that the deformations of both monofacial and bifacial Hi-MO 5 modules are less than 45 mm, and their anti-crack abilities are excellent.
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