DOI: 10.33917/mic-5.124.2025.13-20

The method of analytical calculation of the microeconomic criteria of investment efficiency into PWR Small Modular Reactor is presented as depending on the engineering, physical and economic parameters of the reactor. This method is convenient for multi-variant preliminary searches of acceptable criteria for SMR competitiveness. As a prototype SMR reactor is being considered RITM-200N with a period of 6 years of continuous work (before fuel overload) and the use of tolerant fuels, accident-resistant, consisting of metal ceramic composition in a chromium-nickel alloy shell (42XHM). The results of calculations of the relationship between engineering and physical parameters of the reactor, electricity costs and the payback period for investments are given.

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[1-19] see in No. 4 (123)/2025. p. 67-69

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DOI: 10.33917/mic-4.123.2025.62-69

The method of analytical calculation of the microeconomic criteria of investment efficiency into PWR Small Modular Reactor is presented as depending on the engineering, physical and economic parameters of the reactor. This method is convenient for multi-variant preliminary searches of acceptable criteria for SMR competitiveness. As a prototype SMR reactor is being considered RITM-200N with a period of 6 years of continuous work (before fuel overload) and the use of tolerant fuels, accident-resistant, consisting of metal ceramic composition in a chromium-nickel alloy shell (42XHM). The results of calculations of the relationship between engineering and physical parameters of the reactor, electricity costs and the payback period for investments are given.

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DOI: 10.33917/mic-5.100.2021.49-61

An analytical methodology for evaluating the criteria of microeconomic efficiency of investments in nuclear power plants with innovative accident tolerant nuclear fuel resistant is presented. The main directions of current research in the world on the development of various variants of accident tolerant nuclear fuel are shown. To assess the competitiveness of nuclear power plants with accident tolerant fuel, it is proposed to use the coefficients of the influence of tolerant fuel on capital, operating and fuel costs, as well as on the efficiency of using the installed reactor capacity. Analytical formula containing influence coefficients are obtained to evaluate the main criteria for the effectiveness of investments in nuclear power plants with such type of fuel: internal return rate, levelized cost of electricity, discounted payback period and net present value. The results of the analysis of the sensitivity of microeconomic criteria to the proposed influence coefficients are presented. This approach allows us to determine the most important directions for a detailed analysis of the economic effects of the intеgration of accident tolerant fuel into nuclear power.