Less mature nuclear reactor technologies are characterized by a greater uncertainty due to insufficient detailed design information, operational data, cost information, etc., but the expected performance characteristics of less mature options are usually more attractive in comparison with more mature ones. The greater uncertainty is, the higher economic risks associated with the project realization will be. Within a comparative evaluation of less and more mature nuclear reactor technologies, it is necessary to apply economic risk measures to balance judgments regarding the economic performance of less and more mature options. Assessments of any risk metrics involve calculating different characteristics of probability distributions of associated economic performance indicators and applying the Monte-Carlo method. This paper considers the applicability of statistical risk measures for different economic performance indicators within a trial case study on a comparative evaluation of less and more mature unspecified LWRs. The presented case study demonstrates the main trends associated with the incorporation of economic risk metrics into a comparative evaluation of less and more mature nuclear reactor technologies.

1. Introduction
 2. Methodology
  2.1 Criteria for comparison of alternatives incase of risk and uncertainty
  2.2 Specification of a trial model
 3. Discussion and results
 4. Conclusion
 REFERENCES

• Andrianov A.A.(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
• Andrianova O.N.(Institute for Physics and Power Engineering named after A.I.Leypunsky, Sq.)
• Kuptsov I.S.(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Corresponding Author
• Svetlichny L.I.(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
• Utianskaya T.V.(JSC Engineering Center of Nuclear Containers)