Abstract
Semi-transparent Building Integrated Photovoltaics provide a fresh approach to the renewable energy sector, combining the potential of energy generation with aesthetically pleasing, multi-functional building components. Employing a range of technologies, they can be integrated into the envelope of the building in different ways, for instance, as a key element of the roofing or façade in urban areas. Energy performance, measured by their ability to produce electrical power, at the same time as delivering thermal and optical efficiencies, is not only impacted by the system properties, but also by a variety of climatic and environmental factors. The analytical framework laid out in this paper can be employed to critically analyse the most efficient solution for a specific location; however, it is not always possible to mitigate energy losses, using commercially available materials. For this reason, a brief overview of new concept devices is provided, outlining the way in which they mitigate energy losses and providing innovative solutions for a sustainable energy future.
Highlights
In 2015, the United Nations General Assembly adopted a series of Sustainable Development Goals (SDGs), including the requirement to protect the planet’s environment [1].SDG 7 highlighted the importance of ‘ensuring access to affordable, reliable, sustainable and modern energy for all [2]’
average visible transmittance (AVT) is an optical property that indicates the fraction of visible light transmitted through the window while window to wall ratio (WWR) is the ratio between the glazed surface and the gross façade area [33], higher outputs being achieved where more transparent Building Integrated Photovoltaics (BIPV) are used over a larger WWR
BIPV technology is a promising addition to the existent technologies for renewable and sustainable energy
Summary
In 2015, the United Nations General Assembly adopted a series of Sustainable Development Goals (SDGs), including the requirement to protect the planet’s environment [1]. Photovoltaic systems, which can be seamlessly integrated in the built environment, are significant in meeting the rising demands for energy resulting from the accelerating rate of urbanization, in a sustainable way. Several research projects have been discussed in [4], in particular, for integration of solar energy systems in heritage sites and buildings, in addition to proposing a framework for reviewing these projects. The energy performance of semi-transparent Building Integrated Photovoltaics (BIPV), in a variety of climatic and environmental conditions, is the subject of interest in this review
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