If the glass of a solar module shatters after a hailstorm, the cause of the damage is at least obvious. But more and more solar modules have one. Spontaneous glass breaking for no apparent reason On. Even if this damage appears at first. mysterious It turns out, there are several possible explanations.
The California Renewable Energy Testing Center has shown that such damage is occurring on an increasing basis.Renewable Energy Testing Center“RETC has determined that spontaneous glass breakage in solar modules is not due to direct impact, says RETC annual report”Photovoltaic Module Index 2024“
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broken sun glass
© Renewable Energy Testing Center
like windshield
Most often, the glass of photovoltaic modules passes Dirty maintenance or Storms Damaged. Such a spontaneous and seemingly unexplained glass breakage could be front glass From a car, the test center is suspected.
Before a major crack occurs in a windshield, there is often small, inconspicuous damage that is difficult to detect. Only by temperature fluctuations or External influences It becomes a large crack. “We believe that a similar dynamic could be the cause of the spontaneous breakage of solar glass,” says the Photovoltaic Module Index 2024.
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A combination of several reasons
Besides, manufacturers always thinner solar glass use, and is therefore more prone to errors. Just from the power of 3 mm It can be tempered glass. Anything less than that makes the solar glass much weaker, meaning it can break more quickly.
This is another possible explanation for the spontaneous glass breakage. Mix Who always Larger Units With those thinner than ever frameworkIn the Closer distances to be assembled. This increases the stress and load on the glass. The result is increased damage to the glass.
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