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Evaluation of the district heating market efficiency as the function of its size and number of competing suppliers

In this paper, the dependence of the district heating system efficiency on the number of heat energy suppliers and the volume value of heat energy consumption is considered. The critical point at which functioning of the heat energy market becomes expedient is determined. The estimation of the introduction possibility of the heat energy market in Eastern European cities is given. Introduction of the district heating market was considered on the example of Latvia (city of Riga), but evaluation of technological and economic efficiency district heating market on the example of Ukraine.