Browsing by Author "Terrados, Julio"

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Electricity production using renewable resources in urban centres
(2018) Barragán Escandón, Edgar Antonio; Terrados, Julio; Zalamea León, Esteban Felipe; Arias Reyes, Pablo
Previous research has identified 11 technologies that use resources that are available in or come from cities. It has been established that using these technologies, the flows from energy carriers required by cities could be reduced. These carriers can be electricity or fuels. Of the identified technologies, eight can produce electricity: biomass, biodigestor biogas, landfill biogas, waste incineration, tidal, small wind, small hydroelectric and photovoltaic technologies. The use of these technologies depends on the existence of resources and technical, economic and social or environmental factors. This research proposes the use of multiple-criteria techniques to select the most appropriate options for promoting renewable energy in cities. This approach was applied to the medium-sized city of Cuenca in Ecuador. Ecuador is a developing country, is an oil producer and has important water resources. The authors concluded that studies of the potential for implementing hydroelectric and solar photovoltaic energy and energy from landfill gas should be extended. The results coincide with the existing resources, implemented projects and the expectations of local professionals.
Factores que influyen en la selección de energías renovables en la ciudad
(2019) Barragán Escandón, Edgar Antonio; Zalamea León, Esteban Felipe; Terrados, Julio; Vanegas Peralta, Pablo Fernando
Urban energy models assume that energy is imported from outside the urban area. Forecast increases in urban population and energy use intensity will increase energy requirements. One alternative is to integrate sources of renewable energy within cities boundaries. To do so, differences in urban form, resources availability, energy requirements, condition of buildings, infrastructure, and population and building density make city-specific analysis necessary. This study identifies 14 factors that urban planners should consider to make the most appropriate technology choices for a given city. Through consultation with 78 experts, the presence of renewable energy sources was selected as the most important factor, followed by economic conditions in the city. The least important factors were environmental consequences of global warming, eutrophication and acidification