Most panels are guaranteed for 25 years, I believe. And that guarantee is that they produce xx% of a new panel. There will be reduced efficiency over time, but systems should continue to be effective for years after the guarantee is over.
Tim KI6VBY
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, October 01, 2009 8:28 PM To: [email protected] Subject: AMSAT-BB Digest, Vol 4, Issue 509
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