[en] The basic issue addressed in this research can be formulated as follows: how can peoples reactions to high risk energy technologies be described, analysed and compared. In this study the technologies for electricity generation of nuclear power and coal were chosen for comparison. The thesis gives a general introduction and considers: 1. policy issues involved in the introduction and implementation of large scale technologies. 2. the current electricity supply situation with particular emphasis on the contribution of nuclear power and coal. 3. recent research which has contributed to the formulation of energy policy decisions. The attitudinal framework adopted in this study is discussed in relation to other approaches for the analysis of risk perception, classification of risks and personal and collective decisions about risk taking. (Auth.)