Solar Technology Integration on Building Facades
Jong-Jin Kim
                   2022

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Skyscrapers are disproportionate energy consumers and major sources of carbon emission in urban areas. To curtail carbon emission in cities, new ways of designing tall buildings must be developed. As a way of enhancing energy efficiency and reducing carbon emission, this study analyzes energy production potentials of alternative designs of building integrated PV systems. For the purpose of assessing the energy self-sustainability of the alternative PV systems designs, the current state ofenergy demands of high-rise buildings was investigated. The amount ofsolar energy that can be harnessed from PV panels installed on the roof andeight different configurations of PV integrated on the south façade of a 30-story building in New York was estimated, and its energy self-sufficiency was analyzed. It was found that, with the current level of energy consumption and PV efficiency, building integrated PV systems can meet about 6.8 % of the tall building’s energy self-sustainability and 11.2 % electricity self-sustainability. Significant reduction in energy demand is a prerequisite for moving toward near-zero or zero energy skyscrapers.