As its name implies, clean energy, including the use of and conversion of solar
power, should be clean. This is a fair demand put to the solar PV industry. Unfortunately clean production has yet to come to fruition. Greenpeace has reviewed multiple stages of production throughout the solar PV industry chain, and found that the hurdles that lie between China and clean production don't lie in technology, but instead with will. The Solar PV industry can and should upgrade itself according to the current environmental discharge standards, as well as implement environmental protection standards to realize clean production. By reducing or even eliminating pollution, solar power can indeed become clean.
Solar PV Pollution Report