Study of the cost-benefit analysis system for FBR research and development

In order to promote the FBR development, it is necessary to grasp an adequate R and D investment scale which corresponds with the benefit brought by the research and development. In this study, we aimed to develop the Cost-Benefit Analysis System. The prototype of the system was made based on the concept that had been constructed by the authors in 1998. Simultaneously, a trial calculation was performed based on research of the input items and examination of their validity. The benefit of the FBR development is obtained from calculations of the effects such as environmental benefit and contribution to energy security, safety improvement, reduction in resource import and restraint of price by resource conservation as well as merit brought by the gap of the unit cost of the power generation (generation merit). As some trial calculations, the cost benefit analysis's in 102 years, from 1999 to 2100, was performed assuming that would start generation by FBR in 2030. The results of the sensitivity analysis for some parameters showed that FBR would be more beneficial in the society where the discount rate is small, (i.e. a higher value is put in the future.) and conservation of the environment has importance. Such inevitable results confirmed the validity of this system. (author)