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November 17, 2017

Solar Panels and Hail

Solar Panel and Hail, Solar 101 Basics, How do solar panels withstand hail

Lets start off by mentioning that our oldest system was put in back in 2011 and today almost 2018 we have not had any solar hail damage claims to date. Now we have had to pull the panels off the roof of a hail damaged roof for an insurance re-roof type scenario on two separate occasions, but those panels were not damaged at all. 

One thing to consider when hail is coming down, it is not striking the panel at a direct 90 degree angle hit, most panels are set at about a 20 to 30 degree tilt on average. Some of that inertia coming down is directed downward based on the tilt of the panel.

The Industry standard is for a solar panel to withstand a a golf ball sized hail stone at 50mph, however as you will see in the video presented to you by Solar World USA the solar panels are much more resilient than that. https://youtu.be/M6v2lDa8Hos

James Bartley

Solar and Generator Division Coordinator

Skywire Solar

November 17, 2017

Solar Panel Maintenance?

Solar Maintenance, Solar PV cleaning, Solar 101 Basics

Honestly I am sure there is someone out there that is telling you that you need to maintenance your solar pv system for x amount per year. Bla Bla Bla, so I would say to that if you want to waste your money go ahead, but there is no real reason to be concerned with that. Yes dirt and pollen can build up on your panels, but the average rain fall that we get in lower Missouri is enough to keep your panels clean. 

Whether we are installing Micro-inverters or DC optimizers, both of which have a per-panel monitoring system that allows us to get alerts if the system is not performing as it should. If a flock of birds came and covered just one panel in bird poo we would get an alert from our manufacture letting us know which panel was having the issues.

Now... Will it hurt if you wanted to get the garden hose out and clean off your panels before waiting on the next rain? No absolutely not, but is it necessary? No. When we project how much your solar system will produce each year, "soiling" is a factor in those calculations. 

You know the cool part is that solar panels are a solid state technology unlike wind turbines that have moving parts. Every body know that anything with moving parts requires maintenance. We like the mentality for you to go with is "set it and forget it" and let us take care of the rest. We will be there for any alerts that the monitoring system gives us.

James Bartley

Solar and Generator Division Coordinator

Skywire Solar