Quote:
Originally Posted by ProDigit
Then you'll have to add the insurance to the cost of the purchase.
Standard factory guarantee usually covers the basic errors not caused by physical abuse, and does not cover theft, and generally only covers the first 1-5 years.
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Insurance is actually minimal cost for theft and damage. Factory guarantee for most major brands is 90% of rated power for the first 10-12 years and 80% of rated power for the next 10-12 years. If the panel does not meet the guaranteed power output for whatever reason, the panel is replaced. The microinverters are a bit less generous and are generally guaranteed for 15 years.
You can find a lot of this kind of information on the many solar power consulting sites available on the web.