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Energy-Economic Assessment of the Strategies for Energy Efficiency Improvements at Thermal Power Plants in Russia

  • GENERAL ISSUES OF POWER ENGINEERING
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Abstract—

The current problems of strategic goal-setting for the development of thermal power plants (TPPs) as the main sector of the electric power industry in Russia are considered. The article presents the results from studies of the possible scale and conditions of the technological transformation of Russia’s thermal power industry that will make it possible to achieve the target indicators of the Energy Strategy to reduce the average TPP heat rate through improving the utilization of the capacity of existing power plants and implementing investment decisions on replacing the existing TPPs and constructing new ones based on state-of-the-art technologies. For this purpose, alternative cases of power plant development in the Unified Power System (UPS) of Russia, which differ from one another in the amounts and technological structure of the required capacity additions at TPPs and take into account the current plans for the development of nonfossil types of power plants, have been prepared. In each case, the dynamics of changes in the generating capacity structure and electricity production mix in the UPS of Russia, the demand for different kinds of fuel, and the amount of required capital investments are determined. The incremental characteristics of the TPP energy efficiency improvement are estimated according to the necessary volumes of capacity renewal and the corresponding capital requirements. Interrelations between the scales of technological renewal of the thermal power sector, the volumes of the required revenue gained by TPPs, and the electricity generation sector as a whole are studied with the use of financial and economic models. The price consequences from implementation of various TPP heat rate decreasing scenarios differing from one another in intensity are determined. It is shown that the implementation of an intense investment program for technologically restructuring the thermal power sector to achieve the target indicators of the Energy Strategy will not lead to a sharp and constant increase in the price burden provided that the policy for restraining the growth of gas prices to an extent not higher than the inflation rate is retained, and provided that measures are taken to rapidly decrease, within the nearest 5–7 years, the cost of new equipment for TPPs serially produced in Russia, primarily that based on high- and medium capacity gas turbines.

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Notes

  1. For this purpose, for example, the fuel cost thermal separation method is used for the tariff regulation purposes, which is based on the physical method with including the entire electric energy consumption for auxiliaries in the composition of fuel cost related to electricity supply.

  2. Thus, for the conditions of the Central United Power System, the specific capital investments in the new serially produced power unit of a combined-cycle CTPP equipped with large-capacity units (400 MW) in 2030 are taken at a level of 51000‒56000 rubles/kW in 2019 prices with their decreasing by 2035 to 45000 rubles/kW in 2019 prices depending on the production scales (without VAT). The averaged specific capital investments in new GT and CCGT CHPs were taken, based on an analysis of project data, by approximately 10 and 25% higher than for a new CCGT-based CTPP, respectively.

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  1. Energy Research Institute, Russian Academy of Sciences (ERI RAS), 117186, Moscow, Russia

    F. V. Veselov, I. V. Erokhina, A. S. Makarova, A. I. Solyanik & L. V. Urvantseva

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  1. F. V. Veselov
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  2. I. V. Erokhina
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  3. A. S. Makarova
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  4. A. I. Solyanik
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  5. L. V. Urvantseva
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Correspondence to F. V. Veselov.

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Translated by V. Filatov

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Veselov, F.V., Erokhina, I.V., Makarova, A.S. et al. Energy-Economic Assessment of the Strategies for Energy Efficiency Improvements at Thermal Power Plants in Russia. Therm. Eng. 68, 895–905 (2021). https://doi.org/10.1134/S0040601521120119

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  • DOI: https://doi.org/10.1134/S0040601521120119

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