Integration of Passive Energy Efficient Design Elements for Office Complex, Abuja, Nigeria

Abstract

Energy necessity of buildings has seen an increase over the past years. Predominantly is the demand for cooling and lighting of buildings. The commercial sector has been identified as one of the major contributors to the immense diminishing of natural resources through the use of artificial energy for cooling and lighting of buildings. The study integrates passive energy efficient design elements to achieve sustainable energy efficient office buildings in Abuja, Nigeria. The research adopted descriptive survey method as it permits for multi-dimensional approach to data collection. Qualitatively, the extent at which passive design elements such as building orientation, courtyard, building form, thermal insulation, and skylight have enhanced energy efficiency was determined. Through stratified random sampling, ten (10) office buildings were selected across the city of Abuja to observe the energy efficient design elements adopted in them. Data was collected through observation schedule and well-structured questionnaire. Data collected was statically analyzed and the result showed that office buildings in Abuja were designed with little consideration for passive design elements as most of the office buildings depend on mechanical means for lighting and cooling. It is recommended that passive design elements should be considered in future office design to reduce energy requirements and the negative effects it might have on the environment.