ABSTRACT
Starting in 1994, the first report on the Comparative Risk Assessment (CRA) of severe accidents in the energy sector has been released in 1998, based on PSI’s comprehensive framework with the Energy-related Severe Accident Database (ENSAD) as its central element. The main emphasis was clearly on large centralized technologies for which extensive empirical data was available. However, in the past decade, low-carbon technologies such as new renewables, advanced fossil with Carbon Capture and Storage (CCS), and new nuclear technologies (e.g., European Pressurized Reactor, EPR) began to play an important role in the formulation of future energy policies. Therefore, regular updates of ENSAD are a necessary prerequisite to keep up with growing historical experience, while at the same time significant scope extensions were undertaken to meet emerging analytical needs and to provide high-quality decision support to stakeholders.
