The problem won't be the panels wearing out ... it's just space is a premium in cities and it will be more the case more efficient panel types be installed. Th

The problem won't be the panels wearing out ... it's just space is a premium in cities and it will be more the case more efficient panel types be installed. The throw away culture might have been addressed by the time a lot of old panels start coming off rooves, and simple repurposed at a location that has room and a need for more power even if it isn't as efficient. As for "glass" ... if it is low quality, I'm sure there will be a need for "low quality" clear glass ... unlike plastic, it can be melted and formed into glass sheets without too much issue. I would love to pick up a truck load of solar panels that are being thrown away ... but around my way the asking price is still a little much considering some would need their voltage regulation / controller replaced ... and there would be less silver in that load than a single silver spoon.