SOLAR ENERGY AS A MECHANISM FOR INTEGRATING SOCIAL TECHNOLOGIES

Abstract

Energy exclusion is a reality in the northern region of Brazil. In this scenario, photovoltaic solar energy gains more users due to the region's energy potential and the current commercial rise. In many communities, difficulties common to riverside families are overcome with social technologies, whether to improve the quality of life or to improve a productive activity. Given the context, this article aims to present a means of using solar energy as a mechanism to integrate social technologies in riverside communities in the Amazon. To achieve this objective, a versatile photovoltaic system capable of adapting to energy demands was designed. The system uses three-pole three-position toggle switches to switch the type of arrangement performed on the photovoltaic generator, which is determined by the type of associations of the modules that make up the generator: The switch in position one (1) the photovoltaic generator energizes a domestic photovoltaic system (with energy storage – lead-acid battery bank); in position two (2) the generator energizes a direct protection photovoltaic system (containing a frequency converter applied to drive three-phase machines). The system was installed in family homes in the riverside community of Ilha das Cinzas, located in the Amazon River estuary, Gurupá, Pará; and we were successful in integrating existing social technologies (solar açaí mixer and biodigester septic tank) and everyday electrical demands (lighting, refrigeration, household appliances, etc.).