Bibliometric analysis of Net Zero Energy Buildings

The idea of Net Zero Energy Buildings (NZEB) is very attractive and significant for innovative development. However, since the term represents a broad sense, there does not exist common understanding about what does the study of NZEB consist of. We apply a methodology to determine the structure and geographical distribution of knowledge, as well as to reveal the structure of research collaboration in such an interdisciplinary area as NZEB by performing journal information analysis, citation network analysis and visualization. Knowledge in these areas has been growing rapidly in recent years. Research competency of each field shows some characteristics by subject and distributed among USA, China, and EU. With knowledge structure analysis non-technical policy makers understand the fields of study and focus resources to necessary technologies.