Environment & Energy

Although they are nominally more efficient than silicon panels, perovskites panels are not ready for prime time and will not enjoy significant adoption until their manufacturers can scale up production to begin to complete in the silicon- dominated panel market.
Your concerns about lead in perovskites panels is well- placed, but hypothetical at this time. They are not being deployed in significant numbers and may never compete with cheap Chinese manufactured silicon panels.
Solar, wind, and geothermal energy are now cheaper than coal, oil and natural gas generation to deploy, when lifetime fueling costs are taken into consideration.Fossil fuel usage may continue to increase , but largely for political reasons.