Introduction to the Methodology

As renewable energy technologies play an increasing role in ­international climate protection processes, they also play a key role in driving innovation processes within the energy technology sectors. A cross-sectional analysis of the various renewable energy technologies in Germany was accomplished, using a combination of Constellation Analysis (to map the various actors involved) and the concept of innovation biographies (to interpret the innovation pathways). The research aims at showing what drives or hinders the implementation of a renewable energy technology. The data and information used is based on extensive interviews, relevant literature and Internet research. This combination of methods results in a detailed and empirical account of the elements, actors and processes of each renewable energy sector and their mutual influences.