Firstly, solar panels produce no direct pollution and do not contain toxic materials that can end up in our drinking water supply. Solar photovoltaic (PV) cells use semiconductor materials such as silicon and gallium arsenide that have been proven safe for human consumption.
While solar panels use mostly common materials with very low toxicity—glass and aluminum account for over 90 percent of a solar panel's mass—silicon-based solar panels use trace elements of lead for antireflective coating and metallization on solar cells inside the.
There are no emissions of heat-trapping gases associated with generating electricity from solar energy, and life cycle emissions compared to alternatives are a fraction of fossil fuel sources.