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How long solar pv system last?

asked 2021-05-22 08:47:18 -0500

Solar pv system

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answered 2021-05-22 11:45:00 -0500

Vasudevan gravatar image

It's a tricky question. As you know there are three types of inverter based solar systems. 1. Off grid 2. On grid/ Grid tie 3. Hybrid Off grid & hybrid systems are battery based systems and On grid systems are without battery.

Now we can come to the question, typically 25 years of life refers to Photo Voltaic (PV) panels. Manufacturers are giving 10 years warranty against manufacturing defects & additional 15 years performance warranty upto 80%. It can go much beyond that.

Electronics ( Inverters and charge controllers) & batteries have limited warranty & life span. Electronics have life of 10 to 15 years which is a recurring cost compared to panel life.

Same way, Lead acid batteries have life about 8 years(if maintained well) and LFP batteries upto 10 years. Which is also recurring cost.

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Asked: 2021-05-22 08:47:18 -0500

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Last updated: May 22