Lifetime of Solar Cells: Difference between revisions

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That means, as long as the panels are not physically damaged - they continue producing useful electricity for decades after.
That means, as long as the panels are not physically damaged - they continue producing useful electricity for decades after.
Since 2012, panels have 0.5% annual efficiency drop. [https://news.energysage.com/how-long-do-solar-panels-last/#:~:text=As%20a%20general%20solar%20industry,to%20be%20a%20significant%20amount.]
Thus, after 50 years, they are still 75% of their original efficiency! This is as close to lifetime design as it gets.
Manufacturing energy payback time is about 6 months. [https://news.energysage.com/how-long-do-solar-panels-last/#:~:text=As%20a%20general%20solar%20industry,to%20be%20a%20significant%20amount.]

Revision as of 21:14, 12 August 2020

How long do solar panels last? Long.

25-30 years. [1]

But, it's really longer. At 0.8% annuaul decrease, they drop to 80% of their capacity after 25 years.

That means, as long as the panels are not physically damaged - they continue producing useful electricity for decades after.

Since 2012, panels have 0.5% annual efficiency drop. [2]

Thus, after 50 years, they are still 75% of their original efficiency! This is as close to lifetime design as it gets.

Manufacturing energy payback time is about 6 months. [3]