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Semi-transparent PV; Solar cells; Glazing; Energy saving; Buildings
1. Introduction
In the last 20 years, the world?s energy consumption has sharply increased (40%) and is expected to continue to grow by one-third in the period to 2035 [1]. Buildings can be classified among the leading energy AZD1152-HQPA and CO2 emitters [2] and [3]. Around 40% of energy is used for buildings and can reach 50% by considering the embodied energy of the construction materials [3]. Therefore, nearly zero-energy buildings with the integration of renewable energy sources must be adopted from every new construction in the EU by the end of 2020 [3].
Among the different technologies being developed, building integrated photovoltaics (BIPV) have a prominent position due to availability of large building surface areas and PV?s ability to transform sunlight directly to electricity [7]. Generating clean energy from buildings with low-cost photovoltaics can reduce energy cost and mitigate pollution on a noticeable scale. In such systems, PV cells replace conventional building materials and convert them into active elements [8]. Although, PVs are commonly integrated on skylights, roofs or walls, glazing applications are just started to emerge.