AgroFossilFree - Hybrid renewable energy systems for isolated farms. A review

Γενική περιγραφή

In this paper a preliminary analysis of hybrid renewable energy systems (HRES) able to generate at least 100 kW electric power is carried out. Restrictions on the installed power of small farms that are in isolated locations and cannot connect to NPS generally diminish productive activities and, implicitly, profit. Depending on the renewable energy resources (sun, wind, hydro) the characteristics of the isolated location of the work point, the optimal HRES system required for an efficient operation of the agricultural farm even under isolated conditions can be determined by the synthesis elaborated in this paper. Renewable energies that are characteristic to abiotic environment have been approached, describing the current technological methods of transforming them into electricity. Critical issues related to energy storage variants were also considered for periods of time when renewable sources are not sufficient to ensure the electricity consumption needs. The mathematical model of the process of generating electricity from renewable sources has been elaborated in order to perform the global energy calculation of the optimum hybrid system required for the isolated farm. These elements lead to the determination of the technical-economic indicator ζ €/kW of the HRES system in the management of the agricultural farm from the perspective of a sustainable agriculture that produces more with lower costs and in environmentally friendly conditions.