Abstract
A method is presented for justifying the construction of a mathematical model of the process of supplying consumers from local sources, taking into account deterministic input information. The target function of the mathematical model is to minimize financial investments in the construction and operation of the local energy supply system using renewable energy sources. Presented activities are aimed at assessing the efficiency of use of fuel and energy resources by local power supply systems, determining the conditions for a positive economic effect, substantiating the composition and main technical parameters of power plants and devices of the local power supply system. At the same time, the conditions of competitiveness of the local power supply system relative to the centralized one should be observed. Sources of local power supply systems should be built on the basis of biogas plants that are capable of producing biogas with long-term storage in gas storages and at the same time are energy storage batteries for other renewable sources. The presented analysis of the energy balance of a biogas plant, taking into account the synergistic effects of interaction between centralized and local energy systems, will make it possible to make optimal decisions for creating a bioenergy complex.
Highlights
There are objections and opposing judgments on the effective use of renewable energy sources (RES), and the main one is the high cost of energy that the consumer receives from the local energy supply system using LSRES compared to the energy resources of the centralized system (CS), and The emergence of conditions of uncertainty regarding the justification of the limits of the costs of its implementation, in which the consumer will have a positive economic effect
Based on the results of the studies and calculations, new scientifically substantiated theoretical results of solving an important scientific and technical problem of improving the efficiency of the functioning and structure of combined energy systems that realize the synergistic effects of uniting the possibilities of centralized and local energy in the field of application of alternative energy sources that are together necessary for the development of methods And means to improve the efficiency of fuel and energy use, as well as savings Energy in energy systems and complexes
The principles of construction of combined power supply systems for agro-industrial complex consumers based on energy balances are presented and presented, which differ in the areas of extraction and processing of organic fuel in the form of an initial block diagram that allows to take into account changes in the technological processes for the preparation, production, transfer and distribution of all types of energy with loss accounting
Summary
There are objections and opposing judgments on the effective use of renewable energy sources (RES), and the main one is the high cost of energy that the consumer receives from the local energy supply system using LSRES compared to the energy resources of the centralized system (CS), and The emergence of conditions of uncertainty regarding the justification of the limits of the costs of its implementation, in which the consumer will have a positive economic effect. The dynamics of the growth of prices for energy resources for different countries of Europe [2, 3] can occur with temporary fluctuations, which are caused by the demand, the exhaustion of readily accessible organic fuel deposits, the environmental state of the environment and other factors, including political ones The solution of this problem on a global scale is connected with the search and use of new technologies for the transformation of various types of energy, including alternative ones [4,5,6,7,8,9,10,11].
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