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Abstract: Within the context of renewable sources of energy, solar energy has been devoted to improvement photovoltaic technologies and using a system orientated to energy performance, based to solar energy. In present the solutions can be challenging when finding overall factors performance between design methods and choosing the system of BIPV, although with limited specifically conditions. This paper observed the BIPV system with the fundamental researches in photovoltaic literature. It is addressed for practitioners interested in the design, analysis and performance evaluation.
Key words: energy, building integrated photovoltaics, BIPV, PV technology
1.Introduction
The concerns regarding the environmental impact due the excessive use of fossils fuels, the use of renewable sources of energy is positioned in top of concerns of all states regardless of their development levels, considering the global energy context, so it is necessary to be aware that their use is no longer an alternative form, however the role of the science and research is planning an important role in the energy industries technological advancement must rapidly reduce carbon emissions, the effect of greenhouses gases already having an negative impact, irreversible on the environment.
Because of their sustainable character, photovoltaic technologies are capable of preserving resources, of entire ensuring security and diversity of energy supply and providing energy services, without environmental impact. Photovoltaic electricity in combination with energy conservation schemes, are required today of the biggest environmental concerns, although it is a problem to consider now and in the future. Today the cost of PV electricity is still too high for power productions in utility grids, however PV electricity will become cost-effective in the near future, PV electricity have already their own market and it is in continuously increasing [17]. The building sector consumed around 30- 40 % of energy from the total energy produced in developed countries and contributed over 25 % of CO2 emissions, especially in EU where there are about 160 million buildings, most of them having been designed and built without taking into account the passive energy efficiency strategies as well as the integration of RES (Renewable Energy Sources), for satisfying active energy demand, in this sense energy can be considerably reduced once with the development effective solutions, to improve significant problems of the energy. BIPV systems can solve...