Choose Philadelphia 440W and 600W improved hail resistance solar panel for hail prone zones

Choosing solar panels with thicker front glass can significantly improve hail resistance, and for many projects (especially in hail-prone zones) it’s a wise specification decision. Here’s a detailed breakdown (tailored for your context in off-grid/back-up/remote systems with your company Rocksolar) along with how to act on it.

✅ What the research & industry say

• A study found that PV modules with front glass thickness of 2.8 mm, 3.2 mm and 4.0 mm were tested with hailstone impacts. The 4.0 mm glass module lost ~1.1% power output after a large hail test, versus ~21.8% (2.8 mm) and ~11.74% (3.2 mm). ScienceDirect+3pv magazine International+3The American Ceramic Society+3

• The article from the U.S. Department of Energy’s FEMP recommends designing modules for hail in sites where very large hail (> ~44 mm diameter) occurs. The Department of Energy's Energy.gov

• The industry commentary notes that recently some manufacturers are reverting to thicker glass (or more robust tempered glass) specifically because ultra-thin glass modules were failing more often in hail-prone regions. Solar Power World+1

• A commentary on module reliability states: “To improve the resistance of photovoltaic modules to hail damage, thicker front glass panels is an excellent approach…” The American Ceramic Society

So in short: thicker glass (≥ ~3.2mm) does meaningfully improve hail impact resistance compared to typical ~2mm glass in many modules.

Here are some improved hail resistance solar panels for hail-prone zones for you to choose:

https://rocksolar.ca/products/nexus-440w-rigid-monocrystalline-bifacial-solar-panel

https://rocksolar.ca/products/philadelphia-600w-rigid-monocrystalline-bifacial-solar-panel