Hail attack: Cracks and double-glass module damage rates are alarming

Speaking about the test results, PVEL Vice President of Sales and Marketing Tristan Erion-Lorico said that if a double-glass module is impacted by hailstones with a diameter of 50 mm, its glass breakage rate can reach 89%. This is quite astonishing considering how common dual-glass modules are today. "

However, the glass-back panel assembly using fully tempered glass has a glass breakage rate of only 34%.

Early warning system

In addition to the hail resistance of modules, solar developers can also rely on hail risk assessments to better protect solar PV plants.

Anti-hail and tracking bracket technology

Nicole Thompson, data scientist at climate insurance provider kWh Analytics, says moving components into hail-proof positions, where tracking brackets are highly tilted to reduce the impact energy of hail, is an effective and well-documented mitigation technique.Trina solar panels