Journal
SUSTAINABILITY
Volume 10, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/su10124670
Keywords
office buildings; BIPV (Building Integrated Photovoltaic); energy performance; EnergyPlus; simulation; thermal comfort
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Non-residential and more specifically office buildings are, nowadays, an integral part of the building stock and milestones of urban areas in most of the developed and developing countries all over the world. Compared to other building types, office buildings present some of the highest specific energy consumption rates. In the present study, a typical nine-story office is assessed for a number of different building integrated retrofitting measures. Measurements of indoor environmental conditions were used in order to validate the developed simulation model of the building in EnergyPlus. Then, a number of different building integration options for photovoltaic systems and shading options are examined, in order to evaluate the best option in terms of indoor air quality, thermal comfort and energy consumption. The amount of electricity produced can meet 65% of the building's annual electricity requirements, while the shading options can reduce energy requirements by as much as 33%. Although this in not a value that can be dismissed easily, it becomes clear that furtherand more deeply aimingmeasures are needed, if the building is to achieve near zero energy status.
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