Q4Electrical Energy Conversion And Auditing

Ten Steps of Detailed Energy Audit

Step 1 - Pre-audit planning: defining the audit's scope, objectives, and boundaries, forming the audit team, and establishing a schedule and resource plan for the audit.

Step 2 - Primary data collection: gathering historical utility bills, process flow diagrams, equipment nameplate data, and production records to build an initial baseline understanding of the facility's energy consumption pattern.

Step 3 - Data analysis: analyzing the collected historical data to establish trends in energy consumption relative to production output, identify the major energy-consuming areas, and calculate baseline specific energy consumption figures.

Step 4 - Site walk-through survey: conducting a physical inspection of the facility, observing actual operating practices, and forming an initial qualitative assessment of obvious energy-wastage areas and equipment condition.

Step 5 - Detailed measurement and monitoring: using portable measuring instruments (power analyzers, thermal imaging cameras, and others discussed elsewhere) to directly measure actual energy consumption and operating parameters at key equipment and process stages, over a representative period of operation.

Step 6 - Energy balance and loss analysis: compiling the measured data into a detailed energy balance (often represented as a Sankey diagram), quantifying exactly how the facility's total energy input is distributed among useful output and each category of loss.

Step 7 - Identification of energy conservation measures (ECMs): based on the energy balance and loss analysis, identifying specific, actionable technical and operational measures capable of reducing each identified loss or inefficiency.

Step 8 - Cost-benefit and feasibility analysis: for each identified ECM, calculating the expected energy/cost savings, the capital investment required, and the resulting financial payback period or other investment metric, to prioritize measures by cost-effectiveness.

Step 9 - Report preparation and presentation: compiling the audit findings, energy balance, identified ECMs, and their cost-benefit analysis into a formal audit report, and presenting the findings and recommendations to facility management/decision-makers.

Step 10 - Implementation assistance and follow-up: providing ongoing assistance during actual implementation of the approved ECMs, and conducting follow-up measurement/verification to confirm that the projected savings have actually been achieved in practice, closing the audit cycle and often informing the next periodic audit.