engleski

Selection of optimal generation set-up considering the socio economic impact

Energy sector nowadays faces many challenges which are often not complementary. Incentives of the European Commission regarding the reduction of negative CO2 impact on global climate change is one of the most significant mechanism which implies deployment of new technologies as well as new approaches in energy system. In this paper the investigation have been made how different generation plants can satisfy heat demands and at the same time minimise operation costs, CO2 emission and consumption of primary energy. In that sense hierarchical optimization procedure was carried out which enables application of different criteria, i.e. it was possible to set different goal functions. Special attention was put on the CO2 emissions. In order to quantify the social impact of different generation plants CO2 emission cost was analysed in different scenarios. Moreover, economic analyses was based not only on operation expenditures but also on the capital investments. Different technologies were analysed, biomass based cogenerations, fossil fuel based cogenerations (in combination with gas engine and gas turbine), heat pumps, electric boilers and fossil fuel boilers. In order to determine optimal generation set-up simulation was carried out for a case of the City of Zagreb, Croatia. The simulation period was one year. It is shown that it is yet possible to achieve significant benefits with appropriate selection of generation mix, particularly in the social context of CO2 reduction. Heat pumps together with biomass based cogeneration technologies shown the best potential for their utilisation in future energy system.

social impact; CO2 emission; techno-economic analysis; multi-criteria optimization

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