How Well Do Solar Panels Hold Up to Hail in Calgary?
When it comes to going solar in Calgary, it’s hard to avoid the ice ball in the room—hail. It’s one of the first questions I get from homeowners, and for good reason. Calgary is one of the hailstorm capitals of Canada, and concerns about solar panel durability are valid when severe weather rolls in.
The good news? Modern solar panels are built to last—even in Alberta’s unpredictable weather.
Are Solar Panels Hail Resistant?
Yes. Most high-quality solar modules, including the ones we install at SkyFire Energy, are designed and tested to withstand hailstones up to 25 mm in diameter (about 1 inch), traveling at speeds of 82 km/h. That’s about the size and force of a golf ball fired straight at the panel under worst-case lab conditions.
Solar panels are made with tempered glass, similar to car windshields. This material is engineered to absorb impact and resist cracking under extreme pressure. And unlike windows, panels are typically installed at an angle, which actually helps deflect hail rather than taking the full impact head-on.
What Happens if a Solar Panel is Damaged by Hail?
While rare, damage is usually limited to one or two panels rather than the entire system. These panels can be individually replaced without compromising the rest of your system’s performance.
In most cases, solar panels on Calgary homes come through hailstorms with little to no damage. Even during the infamous 2020 Calgary hailstorm, when some areas saw baseball-sized hail, many solar arrays remained intact or had only minor damage.
If you want to see how panels are tested, check out this hail impact test video below:
Should You Insure Your Solar Panels?
Absolutely. For added peace of mind, I always recommend adding your solar PV system to your home insurance policy. Most insurance providers in Alberta treat rooftop solar panels like other home upgrades—think decks, kitchens, or garages. The cost is usually a small premium adjustment, and it ensures your system is covered against hail and other weather-related risks. In this way, if your system was damaged by the hail, then we would work with your insurance provider to have the damaged modules tested and/or replaced.
Before installation, you can also talk to your insurer about any coverage specifics or documentation needed.
Are Solar Panels Worth It in a Hail-Prone Area Like Calgary?
Yes. While hailstorms are a seasonal concern, solar panels in Calgary have proven to be a reliable, long-term investment. Their durability, angled installation, and insurability make the risk manageable.
To summarize:
- Panels are tested for hail up to 25 mm (1 inch) at high speeds (82 kph)
- Tempered glass and angled mounting help deflect impact
- Damage is rare and typically limited
- Home insurance can cover your system for added protection
Final Thoughts
Solar panels are designed to handle Alberta’s extreme weather—from frigid winters to summer hailstorms. If you’re considering a residential solar system in Calgary, hail shouldn’t hold you back. With proper installation, durable equipment, and a smart insurance plan, your investment is well protected—even when the skies turn stormy.
If you have questions about solar and hail, or want a custom quote for your home, feel free to reach out to me. I’m happy to help walk you through everything—weather concerns included.