RISK INDICATORS OF MATERIALS SUPPY FOR FUTURE PHOTOVOLTAIC EXPANSION – THE CASE OF SILVER –
Photovoltaic (PV) system is especially taken notice as one of important renewable energy resources, because PV has potential to provide a certain amount of energy supply as well as without greenhouse gases emission. Considering recent rapid increasing demand for PV system, more expansion of PV system is expected in the future. However, some precious metals and minor metals such as silver, indium and others are used as component materials of solar cell in PV system. Even if energy supply would become renewable, strict limitation of these metals still remain because amount of natural resources and recycling of metals has restrictions intrinsically.
Silver; Supply; Risk; Risks; country risk; Demand; Prices; Production; Resources; Markets;