ENERGY AUDIT OF INDUSTRY

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Prof. Avijit Bandopadhyay
9.12.2016

Prof. Bandopadhyay spoke about a burning topic most prevalent in an industry. Energy audit is very much important now-a-days in industry. Energy audit is a process by which an estimate is made regarding the amount and cost of energy consumed and to search for ways and means to reduce the cost of energy consumption. It helps to quantify the energy usage at a site and highlights areas for potential savings and gives the data from which performance indicators can be derived. In a nutshell, a thorough cost-benefit analysis is to be conducted so as to potentially optimize the usage of energy in an industry. The main objective of energy audit is to quantify energy consumption for audit scope (site, area or item of equipment), identify practical energy saving projects and categorize savings in energy and monetary terms. The total cost of energy consumption for a period of time is calculated. Then the results are compared with the current factory standards and then corrective actions are suggested so as to efficiently use energy and save energy and hence cost. Energy audit is basically categorized as preliminary and detailed audit. Preliminary energy audit is a relatively quick exercise to: Establish energy consumption in the organization , estimate the scope for saving , identify the most likely (and the easiest areas for attention , identify immediate (especially no-/low-cost) improvements/ savings , set a ‘reference point’, identify areas for more detailed study/measurement and preliminary energy audit uses existing, or easily obtained data. Detailed energy audit offers the most accurate estimate of energy savings and cost. It considers the interactive effects of all projects, accounts for the energy use of all major equipment, and includes detailed energy cost saving calculations and project cost.

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