US based manufacturer Hounen Solar has announced that its HNM7-SHDB144-550/M bifacial module has successfully passed the Hail Stress Sequence (HSS) test conducted by Kiwa PVEL, highlighting its commitment to delivering durable, field-proven solar technology engineered to withstand extreme environmental challenges.
The HSS test is part of Kiwa PVEL’s Product Qualification Program (PQP) and simulates severe hailstorms that go well beyond standard IEC 61215 protocols. Modules are subjected to 11 direct impacts from 45 mm ice balls traveling at terminal velocity (~30.7 m/s), with each impact delivering over 20 joules of kinetic energy.
The Hounen module demonstrated outstanding resilience, with results significantly exceeding industry standards.
“These results validate the strength of our engineering and manufacturing processes,” commented Hounen Technical Director Guo Min. “The HNM7-SHDB144 series is designed not just for high efficiency, but for lasting resilience—and these test outcomes prove it.”
Manufactured at Hounen’s state-of-the-art facility in Orangeburg, South Carolina, the HNM7-SHDB144-550/M is ideally suited for projects requiring U.S. domestic content and high durability, particularly in hail-prone or extreme weather regions.
