Policy mix and the impact on PV technologies and industry : the challenge - how to make policies quantifiable?

In the framework of the research project (Gretchen) financed by the German Federal Ministry of Education and Research, the impact of German policies on industry structure and technological change is investigated. As the quantitative impact analysis of German policies on technologies and structures is complex and requires a comprehensive approach, this paper focuses on a selected part of the analysis: It explores and discusses the possibilities of how to quantify and operationalize German policies addressing photovoltaic electricity generation. This is done for the case of PV. The impact analysis of the policies will be discussed in a separate paper.