BENEFITS TO SOCIETY PROVIDED BY ENERGY EFFICIENCY ACTIONS IN LIGHTING SYSTEMS LIGHTING SYSTEMS AND BY THE AGGREGATION OF PHOTOVOLTAIC MINI-GENERATION TO BUILDING
DOI:
https://doi.org/10.59627/cbens.2022.1158Keywords:
Photovoltaic Energy, Energy Efficiency, CO2 AvoidedAbstract
This work aims to develop a method to evaluate, from the perspective of society, the benefits provided by the insertion of photovoltaic mini-generation and by energy efficiency actions in lighting systems (EESI) in buildings. For a consumer unit (UC) owned by the Federal University of Santa Catarina (UFSC), powered at medium voltage, located on the Trindade Campus of the UFSC, in addition to energy efficiency measures in lighting systems, a 711 kWp mini solar PV system was designed. In the analyzed period, the results showed that the projected PV system would generate annually approximately 908 MWh, equivalent to approximately 54% of the annual electricity consumption of the UC during offpeak hours. An energy efficiency project for lighting systems in the buildings integrating the UC was carried out. The results showed that the replacement of fluorescent lamps (current system) with LED lamps (proposed system) would provide a reduction in demand at peak hour RRP of 307.2 (kW), annual electricity savings of approximately 818.1 MWh, annual cost avoided by the electrical system due to the RRP of R$ 192,617.47 and annual cost avoided due to the energy saved of R$ 361,248.42. The replacement of the lamps of the internal lighting systems of the buildings integrating the UC CDS Piscinas of UFSC (current system) by LED lamps (proposed system) would provide the electrical sector with an annual benefit of R$ 553,865.89. The total annual avoided cost that would be provided by energy efficiency actions in lighting systems and by the insertion of photovoltaic generation at UC CDS Piscinas da UFSC would be approximately R$ 954,811.45. Additionally, through the insertion of PV generation in the UC and the EESI actions in the buildings belonging to it, approximately 784.09 tCO2 equivalent would no longer be released into the atmosphere (equivalent to the planting of approximately 3,400 trees).
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