An energy audit is a systematic approach used to quantify energy usage and identify opportunities to improve energy efficiency. It involves verifying and analyzing energy use to provide recommendations and an action plan for reducing consumption. The top three operating expenses for most industries are energy, labor, and materials, so energy management is important for cost reduction. An energy audit helps understand how energy is used, identify waste areas, and scope for improvement. It provides a benchmark for managing energy and planning more effective use. Preliminary audits are quick and identify easy savings areas, while detailed audits evaluate all major systems accurately to determine precise savings calculations and project costs.

1. Presented By: Guided By:
Renuka Lodha Prof. R.K. Agrawal

2.  Energy Audit is the key to a systematic approach
 Used for decision-making
 Attempts to balance the total energy inputs with its use
 It quantifies energy usage.

3.  By the Energy Conservation Act, 2001
 Energy Audit is defined as "the verification, monitoring
and analysis of use of energy including submission of
technical report containing recommendations for
improving energy efficiency with cost benefit analysis
and an action plan to reduce energy consumption".

4.  In any industry, the three top operating expenses are:
energy (both electrical and thermal),
labour
materials.
 Thus energy management function constitutes a
strategic area for cost reduction

5.  Energy Audit will help
To understand about the ways energy and fuel are
used in industry.
Help in identifying the areas where waste can occur.
Help in identifying where scope for improvement
exists.

6.  The Energy Audit would give a positive orientation to
the
Energy cost reduction
Preventive maintenance
Quality control programs

7.  An audit programme will help to keep focus on
Variations in the energy costs
Viability and reliability of supply of energy
Decide on appropriate energy mix
Identify energy conservation technologies
Retro fit for energy conservation equipment etc.

8.  The primary objective :
To determine ways to reduce energy consumption
per unit of product output
To lower operating costs.

9.  Energy Audit provides
A bench-mark for managing energy in organization
The basis for planning a more effective use of energy
throughout the organization

10.  The type of Energy Audit to be performed depends on:
Function and type of industry.
Depth to which final audit is needed.
Potential and magnitude of cost reduction desired.

11.  Two types of Energy Audit
i) Preliminary Audit
ii) Detailed Audit

12.  It uses existing or easily obtained data
 It is a relatively quick exercise to:
Establish energy consumption in the organization
Identify the most likely and the easiest areas for attention
Identify immediate improvements/ savings
Set a ‘reference point’.
Identify areas for more detailed study/measurement

13.  It offers the most accurate estimate of energy savings
and cost.
 It evaluates all major energy using systems.
 It accounts for the energy use of all major equipment,
 Includes detailed energy cost saving calculations and
project cost.

14.  A comprehensive audit:
 Provides a detailed energy saving project
implementation plan for a facility
One of the key elements is the energy balance.
Based on an inventory of energy
Uses systems, assumptions of current operating
conditions and calculations of energy use.
This estimated use is then compared to utility bill
charges.

15.  Detailed energy auditing is carried out in three phases:
1) Phase I - Pre Audit Phase
2) Phase II - Audit Phase
3) Phase III - Post Audit Phase