There is a nascent discussion at SERI R2,
at EPA, and E-Stewards
about what the "maximum life" of solar panels are.
I've had several discussions with experts like Cascadeem.com's Curt Spivey, Veolia's Paul Conca, and solar panel manufacturing experts on what "specification" a panel must meet before a buyer is allowed to be "legitimate".
Curt and Paul are smart, but they are nervous about their own "accountability" - that they may be held to if they sell their clients' electively upgraded panels overseas. Other recyclers are taking a strong a priori stand against export of solar panels for reuse. Note that these are potential sellers of used equipment, discussing which buyers are "legitimate" or "primitive".
It's a continuation of privilege. No one seems to worry about the mining of raw materials in developing countries, despite the fact that the cleanest virgin material mining is worse than the worst possible recycling. But are the others good enough people to get their electricity from a reused solar panel? If in doubt...
The video above is a 42 year old solar panel sent to Good Point Recycling for end of life recycling. It's widespread "truth" that panels function for 30 years. But that "30 year estimated life" statistic was put in print before any panel was more than 10 years... it was (like "80% of ewaste" stats) made up by someone with zero knowledge of the future life of the panel... ostensibly I'm told it had something to do with a procurement specification or waranty request. But "30 years" is hocus pocus, not reality.