Determination of the price for a hydro resource with consideration of operating conditions of hydropower plants using complex criteria of profit maxmization

Abstract

<span>In this paper, a universal method has been developed to determine the price of a hydro resource (one cubic meter) for the operational regulation of a hydropower plant (HPP), which is a combination of an optimization method and a method for assessing the marginal utility. The proposed approach is based on the correct representation of differential incremental rate characteristics of water at an HPP and fuel at a thermal power plant (TPP). To know the price of a hydro resource used for electricity generation at a hydropower plant. This gives the possibility to increase the efficiency of management both at a hydropower plant, and in a water utilization system as a whole. Using the examples of Novosibirsk HPP, it is expected to develop an estimation of economic effect from the implementation of the developed criteria, the proposed method of the calculation of a hydro resource price at HPP, and the method of separating fuel costs at CHPP. As a result of the implementation the developed method for the HPP, a price of electricity sold in the flexible energy market will be compared to the price of the electricity produced and sold at CHPP, being equal to approximately 330 rubles/MW h.</span>

Models of Optimal Operating Modes of the Water-Economic Complex on the Basis of Hydro Resource Price Evaluation

“…It can be noted that the results of optimizing the operating modes of the Novosibirsk energy system, obtained by the new method, are within the range obtained by the method of indefinite Lagrange multipliers [51][52][53]58]. This proves the correctness of the developed algorithm and the adequacy of the results obtained.…”

“…In this investigation, network losses are not considered, because all power plants are located in the territory of the Novosibirsk region. This is possible because the theory of marginal utility allows us to compare the value of fuel consumption at TPP and water consumption at hydroelectric power plants for the same satisfaction of consumer needs in power based on the use of indifference curves for one iteration [51,52]. Therefore, there is a rationalization of the use of all types of resources-computer time, human, financial, which is more effective in modern conditions.…”

“…The methodology developed by the authors for optimizing HPP operating modes in mixed power systems and based on the determination of a hydro resource price using the HPP operational features combines the theory of marginal utility and an optimization model [51,57]. Since power engineering is an infrastructure industry, the optimization of its operating modes will allow an optimizing operation of the entire WUS of the countries, which will allow implementing an energy-saving policy through a more careful attitude to natural resources.…”