Solar Technology Integration on Building Façades | The Plan Journal

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Jong-Jin Kim

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 of energy demands of high-rise buildings was investigated. The amount of solar energy that can be harnessed from PV panels installed on the roof and eight 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