How long do PV modules last?
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Many people wonder how long PV modules last. Most opinions are based on speculation. In my case, I have some experience: my oldest PV module is now 30 years old. I recently ran some electrical tests on the old PV module. To read what I found out, click the link:
http://www.greenbuildingadvisor.com/blogs/dept/musings/testing-thirty-year-old-photovoltaic-module
http://www.greenbuildingadvisor.com/blogs/dept/musings/testing-thirty-year-old-photovoltaic-module
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That was fun reading and great first post! Thanks.
I know of some 53 year old modules in a backyard in southern california!
htps://offgridsolar1.com/
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i have a solarex module that is 27 years old this year. i don't even remember its ratings, but i think it was a 9w pv. i'll have to dig that up one day and test it to see how it's doing.
I always wondered about that too, especially with all the new thin film panels on the market lord knows how long they'll last. @_@
i have an old thin film too that was sandwiched between 2 panes of glass. that one isn't weatherable as the ends are vulnerable to water infiltration and i bought that one in the late 80s. i remember it was putting out roughly 1.25a at 12v when i got a hold of it.
53 years old, OMG, are they still work?
they may fold back on some of their power, but they will last in excess of 20yrs easily.
The technology has existed for much longer than 50 years, only recently has efficiency improved to make it economically feasible.
From Wikipedia...
"... Russell Ohl patented the modern junction semiconductor solar cell in 1946... "
The exploration and explotation of outer space in the 1960s depended on solar cells. Telstar comes to mind.
Thanks for sharing, It is great to know since I am working in a Module and Inverter manufactory rencelty.