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The paper presents the technical and economic analysis of a hybrid system based on renewable sources for a Campus for students cluster building in Romania, Bucharest. The renewable system consists in micro-wind turbine, solar modules and biomass power plant with battery storage. The cluster of buildings will allow rebalancing the demand between buildings, achieving in this way peak shaving of power demand, and maximizing the benefits from renewable energy sources at their maximum production. The modeling, simulation and techno-economic analysis are developed in Homer software considering the location and weather conditions. The aim of the analysis is to determine for the specific case study the optimal independent system configuration to achieve low energy bills integrating renewable sources to produce energy that covers the load demand in the context of European Commission requirements for building energy efficiency improvement. The economic coefficients analyzed that determine a hierarchy of the possible technical cases are the net present cost and cost of electricity.
Sava et al. (Thu,) studied this question.