1105
Solar modules deployed in France in 1992 still provide 75.9% of original output power
(www.pv-magazine.com)
This is a most excellent place for technology news and articles.
The weird thing is that in this scenario these panels are still applicable for replacement probably because the the solar panels of today compared to then are about ~40% more efficient. So compared to a new replacement it's at around 60% efficiency. A major site plans profit off of 30 years and plans to replace glass at that time, so while it may still be somewhat useful long term it's probably more profitable to replace them.
... And since they're still good they can be resold and used by others where efficiency isn't the main concern, no need to trash them
I want to add they aren't even that inefficient for 20 year old tech thats impressive
I'm sorry to tell you that the nineties were a little longer ago than that!
You mean I shouldn't wear my baggy pants with a chain for my wallet anymore?