Case studies in the field of assessing and managing risks from energy systems - CSSR experience and future trends

The paper summarizes the results of the already finished case-studies which were developed during 1984-1986 in the framework of the IAEA-CRP on ''Comparison of cost-effectiveness of risk reduction among different energy systems''. Case-studies were developed according to the common principles of cost-effectiveness analysis of different options. They are related to the different systems of the power plant and its fuel cycle (so called ''subsystem level''). The results demonstrate the applicability of the cost-effectiveness of risk reduction method as a rational tool for: Determination of reasonable limit of radiation exposure; Selection of optimal strategy to achieve these limits; Decision to develop new-technologies for risk reduction; Decision about the most-effective allocation of resources. These results justify the decision to expand this effort through the new research project. In the framework of this project it is proposed to apply integrated approach for risk assessment and management on the ''energy system'' in highly industrialized areas to demonstrate the possibility to get practical results from this research. General aims, and principles of implementation of the new research project are briefly described. (author). 13 refs, 6 figs, 6 tabs