Energy Audit Methodology
Energy Audit Study was divided in following four steps
Historical Data Analysis:
The historical data collection and analysis involves establishment of energy consumption pattern to locate base line of energy consumption and its variation with change in production volumes. This step involves finding out existing Avg. Specific Energy Consumption.
Actual Data Analysis:
This step involves actual site measurement and field trails. Tally of the energy consumption pattern against actual measurements through ABC analysis. Electrical Parameters for all electrical loads are measured with electrical online load Manger. The parameters measured are actual kW, actual Pf, actual Ampere and Voltage. It also involves Input to output analysis to establish actual operating
equipment efficiency and finding out loses in the system.
Evaluation of Energy Conservation Opportunities:
This step involves evaluation of energy conservation opportunity. It gives potential of energy saving and investment required to get expected modification with payback period. All recommendations
given for reducing loses in the system with its cost benefit analysis.
Monitoring and Control:
Energy accounting followed by energy monitoring and control is the electricity sub metering, many organizations still have only their electricity bills and captive power generation log books as their only information on electricity consumption.
However with increasing energy prices, many organizations incorporated sub-metering system in their plants. Sub metering is essential for monitoring, establishing energy consumption patter,detailed engineering and energy saving after implementation of energy conservation projects.