ENERGETIC CONTRIBUTION ANALYSIS RELATED TO THE INTEGRATION OF PHOTOVOLTAIC SYSTEMS IN COMMERCIAL BUILDINGS
DOI:
https://doi.org/10.59627/cbens.2010.1665Keywords:
Grid-connected photovoltaics (PV), building-integrated photovoltaics (BIPV), value of photovoltaic electricityAbstract
Commercial electricity consumers usually have an electricity supply contract with their distribution utility and will be typically set at two different levels for different seasons, depending on the specific country regulations, to account for seasonal variations in the building’s power demands. Power demand peaks that exceed contracted power limits, will usually incur in severe financial penalties. The aim of this paper is to present a proposal to reduce the contracted demand through the use of grid-connected photovoltaic system integrated at ELETROSUL headquarter building, located in Florianopolis - SC, Brazil. The building and adjacent car parking lots can accommodate a 1MWp BIPV generator. The simulation of the annual solar generation profile of this on-site generator showed that the 1MWp BIPV system could account for around 30% of the total building’s energy consumption. The energy cost was reduced from 1.2bi to1.0bi R$, economy equivalent to two months of energy expenditure of the building. Therefore, the photovoltaic generation can enhance the reduction of demand peak, especially during months of highest solar incidence coincide with the months of highest consumption of commercial buildings through the use of air conditioning equipment.
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