Objectives and roadmap The objectives this subtask is addressing
are the following: - To establish and demonstrate, with
comprehensive and transparent studies over the full life cycle,
that PV systems are environmentally friendly compared to other
energy systems. - To show that future very large-scale
implementation will provide clear environmental benefits. The
activities to achieve the announced objectives are the next: -
Compare the environmental impact profiles of PV technologies
with those of other energy technologies - Show the trends in PV
environmental profiles by certain indicators (e.g., energy pay-
back time, green-house gas emissions, environmental impacts,
waste reduction, materials’ recycling and recovery). - Continue
showing such progress in annual updates over the course of Task
12 (5 years). - Valuate the environmental benefits of PV by
showing avoided impacts or avoided “external” costs. - Credible
communication and dissemination of results. These activities
have started with developing guide