Abstract
Energy sources as a solar, wind and water energy are used in production of electrical energy. Their biggest advantage is that they are renewable and they are sustainable. On the other hand, production from renewable energy sources is limited by environmental conditions. Production of photovoltaic systems are dependent on solar radiation, temperature, incidence angle, shadowing and other variable quantities. That is why designing of photovoltaic system is complex. In this paper a photovoltaic system production analysis and consumption analysis in residential house are presented. With real measured data the consumption and production are compared and energy balance equations, battery charge and discharge model are defined and behaviour of battery storage system through the one day are analysed. In addition, the reactive energy production and consumption are also analysed.
Highlights
A clear tendency moving towards renewable energy is observed since the end of the twentieth century, in response to an early depletion of oil supply, to climate and environmental impacts of carbon energies [1]
Production of photovoltaic systems are dependent on solar radiation, temperature, incidence angle, shadowing and other variable quantities
Production depends on solar radiation, temperature, incidence angel, shadowing and other quantities, which are under the influence of environment
Summary
A clear tendency moving towards renewable energy is observed since the end of the twentieth century, in response to an early depletion of oil supply, to climate and environmental impacts of carbon energies [1]. In recent years, introducing the battery storage systems are becoming more popular, but energy storage elements are nowadays expensive, breakable and allow low performances [3], so the most efficient system to harvest energy from alternative sources is still the injection into the grid [4, 5]. Due to their dependence on weather conditions, the renewable energy sources, including photovoltaic systems, have a stochastic production that makes it difficult to integrate into the electric grid. In relation with energy production, the operation of battery storage system is analysed
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