The study investigated Energy Efficiency (EE) measures and practices from the perspectives of Ghana's manufacturing sector. A mixed methods approach that applied both qualitative and quantitative methodologies guided the study. The quantitative approach was relevant to establish statistical inferences and the qualitative methods used to provide further in-depth understanding to statistic(s) provided by the quantitative analysis. A total of 774 respondents (636- food processing Industry, 138- Cement Industry) provided the population for the study. A sample size of 260 informed the study. Various sampling frames including purposive, cluster and simple random were adopted to select respondents. The study concluded that knowledge on EE awareness and practices occurring at the departmental levels was mixed but clear on servicing and cleaning of air-conditioning since the manufacturing industries placed premium on regularity of servicing ACs in their places of work. Also, the findings identified that failure to clean the heating, ventilating and air-conditioning systems, failure to close doors and windows while ACs were on and avoidance of the use of efficient refrigerants and new ACs as key factors that negatively impacted EE for the manufacturing industries. The contribution of single speed ACs to energy efficiency was minimal compared to the other energy wasting activities associated with the use of air-conditioning.
Key words: Air-conditioning, energy, management, efficiency, wastage
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