Why photovoltaic panels efficiency decreases gradually?

Why worry about replacement in 30 years when one good storm or even a high wind could cause the need to replace them tomorrow?

You would only need to replace every 30 years if you were very very lucky.

We had an ice storm here year before last that took out the power lines for over 2 weeks. Reckon what that much ice would do to solar panels?

Since you and not the power company own them, guess who has to come up with the cash to replace them?

Assuming homeowners insurance covers solar panels. How long does it take to get a check from the insurance company?

Plus lots of other little maintenance problems that are all yours. How about cleaning, I doubt they work so well when dirty.

Have fun, enjoy yourself as you enter the wonderful world of constant maintenance instead of once a month bill paying. Yes kiss you leisure time good by.

Mechanical stress caused by wind, snow, hail, hot and cold.

Corrosion caused by moisture and air getting to the active components.

Effects of UV light on some materials, especially plastics.

They wear out simple