Quote:
Originally Posted by Geo NR Gee
One is Silicon Energy with a 30 year power warranty and ratings from 190w panels up to 205w panels.
The other is Itek Energy with a 25 year power warranty, but with more output of 225w panels up to 255w panels.
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Most companies that sell internationally have 25 year warranties because of some regulation about life span of warranties in some country, so instead of having a 25 year warranty in some areas and a 30 year or whatever warranty in other countries, 25 is now standard for most companies out there.
The warranty is also based off the expected half life of the panels, so with a 50+ year life span a 5-7 year pay back is pretty awesome.