Solar scorecard - How clean is the solar industry?

As the global economy transitions toward more renewable sources of energy, solar photovoltaics will play an increasingly prominent role. Because the generation of electricity from solar power produces no greenhouse gas emissions, it is widely considered to be "clean" energy.
In January 2009, the Silicon Valley Toxics Coalition (SVTC) launched a campaign to address these issues and has now published the Solar Score Card, an initial step in measuring companies' commitment to take responsibility for the impact of their products. [They] plan to update the scorecard annually to reflect the dynamic nature of the industry. The scorecard serves as a resource for institutional purchasers, investors, and consumers- anyone who wants to be sure that the solar PV panels they purchase are produced by companies that are responsible stewards throughout product lifecycles. The survey also enables companies to see where they rank relative to their competitors and where they need improvement.