The results depicted that efficiency measures at process and cell level will reduce the specific tellurium demand per watt peak such that the total tellurium demand starts to decline after 2020 despite further market growth, and thus the CdTe –based PV industry has the potential to fully rely on tellurium from recycled end-of-life modules by2038.However,in order to achieve this goal ,material efficiency must be substantially improved and efficient collection and recycling systems have to be built.