Development of cost-benefit analysis system for FBR research and development

Shiba, Tsuyoshi*; Kamezaki, Hiroshi*; Yuyama, Tomonori*

In this research, we performed investigation and evaluation on cost-benefit, and made system construction of basic concept and conceptual design, prior to the system construction which performs (1) evaluation of cost-benefit of FBR development within the country, and (2) evaluation of cost-benefit for every item for R&D relating to the FBR development. As for the methods for cost-benefit, it shall be suitable to assume that success rate differs depending on the future scenario such as fuel prices and to employ discount rates, considering the point of long-term R&D investment. We also pointed out that establishment of discount rates is the biggest issue which influences the results of evaluation of cost-benefit then. When we grasp the effects, it is required to include the effects such as contribution to environmental benefits and energy security, or improvement of safety, other than real generation merits, as it is a public investment. Therefore we made investigations and developments on the way to understand the effects qualitatively. Based on the results, we made a proposal on application to the system, and then showed evaluation flows on the cost-benefit system. We also pointed out that it is a future task to be considered to establish fuel cost scenario or input data or parameters such as value of statistical life or CO reduction, as they are primary factors which influence evaluation results or system reliabilities.