The perspective shift comes as a paper led by Deng [Dr Rong Deng from the University of New South Wales (UNSW).] suggests recycled solar panels could, in 15 years, supply 50 per cent of the industry’s silver and aluminium needs, and within 25 years all of those needs as older models use more metals than newer, more advanced ones.

(Offtopic) where does one find old, used solar panels? I’m after a couple for a personal project, even ones with 10% efficiency (ie very old panels) would do me. Sydney.