Systems Safety Evaluation Based on System Thinking

摘要

Lessons learned from the Fukushima accident, it is necessary to rebuild the safety concept including defense-in depth, risk analysis, resilient system, etc., and systems safety is evaluated based on system thinking. The level of reasonable safety measures should be ensured, by using a risk-benefit analysis method which can rationally evaluate the energy system, in comparison with other energy industries. In addition, based on the analysis results, individual system acceptance or energy system configuration should be determined on the basis of risk communication.