Analysis of Energy Auditing in Nigerian Power Systems

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Abstract 

Energy is one of the major drivers for the economic development of any country. In order to reduce energy consumptions for sustainable development, continuous energy audit of industrial machines become necessary. Energy audit  is one of the most  comprehensive  methods in achieving energy  savings  in industry and  thus reducing  excessive  energy consumption.  This  paper  analyzes  energy  auditing  in  power  system  in  order  to identify the sources of energy waste and assess the effectiveness of the strategies for energy savings using A and T Foods and Beverages PLC  as a case study. This was with a view to recommending a policy that would enhance the effectiveness of electrical energy savings in the company. A detailed energy audit is adopted for energy  project  implementation  plan  and  data from  the publication of  the  International  Standard Industrial Classification of All Economic Activities (ISIC) in Nigeria for the period of (2011 -2017)were used for the analysis.  The sources  of energy  in the company  comprised  of electricity  from utility company and  use of generating sets (fuel). The result showed that the electrical energy consumption in the companies was mainly from generating set. In addition, the total percentage of electric energy consumed from utility company was 40.95% with an average percentage of 5.85%. The total percentage of fuel consumed by the company was 659.05% with an average value of 94.15%. The results identified areas where the company used and wasted energy, and where actions for energy conservation should be implemented. The study therefore established that energy was not sufficiently utilized, and therefore suggested possible strategies for efficient energy usage for the company. 

Keywords: Energy Audit, Energy Saving, A and T Food and Beverages PLC, ISIC, Power System, Generating Set, Electric Utility Companies.

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