Τεχνοοικονομική ανάλυση παραγωγής ηλεκτρικής ενέργειας από βιομάζα γεωργικού τομέα : επιχειρηματικά σχέδια για πέντε νομούς της ελληνικής επικράτειας
SubjectΑνανεώσιμες πηγές ενέργειας ; Ανανεώσιμες πηγές ενέργειας -- Οικονομικές απόψεις -- Ελλάδα ; Επιχειρηματικά σχέδια
In recent years, the exhaustion of fossil fuels and worldwide environmental degradation have led to the implementation of a new energy policy, both at an international and European level. This new energy policy opens up new prospects for the penetration of renewable energy sources (RES). An important source of renewable energy with significant environmental and economic benefits for the future is biomass. The purpose of this diploma thesis is the technical and economic evaluation of agricultural residues fired biomass power plants in five prefectures of the Greek territory: Argolis, Heraklion, Pella, Serres and Phthiotis. The study is divided into two main parts. The first part presents the land cultivated and the average production (or the yield) of the primary agricultural products per region for the years 2004-2007. Subsequently, the availability of agricultural residues is calculated for bioenergy applications. The viability of biomass power plants is investigated in the second part of the thesis. Firstly, the biomass fuel from agricultural residues is selected for each prefecture, taking into account must its availability in large quantities and its moisture content, which should be less than 50 wt.%. Thus, in Argolis orange tree pruning is proposed as biomass fuel, in Heraklion olive tree pruning and dried pressed olive kernel, in Pella peach tree pruning and in Serres and Phthiotis wheat straw. Next, the power units capacity is estimated and the appropriate location of building biomass power plants is proposed. The sustainability of each plant is investigated according to basic assumptions for various parameters that affect the efficiency of the plant (i.e. investment costs, operating and fuel cost, power sales, discount rate). The sensitivity of results to parameter values is also examined. Finally, the environmental benefits of installing biomass power plants are presented by calculating the annual carbon dioxide (CO2) emissions savings to be incurred by the replacement of conventional power plants with biomass power plants.