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-3.116.2024.41-68

An improved methodology for calculating microeconomic criteria for the effectiveness of investments in energy projects (and other real sector projects) based on the UNIDO methodology is presented. It allows to determine the analytical relationship between the engineering and economic parameters of power plants (throughout their life cycle) and a set of microeconomic criteria for the effectiveness of investments. Strictly mathematically, the secondary criteria are derived from the definition of the main microeconomic criterion – net present value (NPV): the internal rate of return IRR, the levelized cost of electricity (LCOE) and the discounted payback period DPP.  Numerous examples and graphic illustrations of estimates of individual parameters of investment projects and criteria for investment efficiency are given. A significant difference between the proposed methodology for calculating investment efficiency criteria is the use of average annual values of revenue, operating costs and production, as well as the introduction of special coefficients (φ) reflecting the effect of discounting cash flows at each period of the life cycle (construction, operation and decommissioning).

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9. Listopadov I.Yu., Kharitonov V.V. Estimation of Investment Efficiency in Nuclear Desalination of Sea Water. Atomic Energy. 2021;130(3):174-179. (In Russ.).

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