By

ZAINI ABDUL WAHAB

ENERGY AUDIT :

APPROACH & METHODOLOGY (PART 1)

1

ENERGY EFFICIENCY INFORMATION

SHARING SERIES

Outline & Content

PART 1

• Introduction to energy audit

PART 2

• Energy Audit Approach

• Steps In Energy Audit Process

PART 3

• Energy Audit Report & Presentation

2

PART 1:

Introduction To Energy Audit

3

Basic Energy Management Cycle

ENERGY

MANAGEMENT

POLICY

ORGANIZING

PLANNING AND

IMPLEMENTATION

EVALUATION

REVIEW FOR

CONTINUAL

IMPROVEMENT

PLAN

DO

CHECK

ACTION

•Commitment from the top management

•SMART policy

•Setting and sharing common goals •Commitment to

take action

•Organization and

responsibilities

•Energy Manager

•Allocation of

resources

•Management Implementation

plan and time frame

•Energy auditing

•Set baselines for measuring

results

•Designation of responsibilities

•Procedures and standards

•Trainings

•Implement Energy Saving Measures(ESMs)

•Measurement and verification

•Monitoring

•Management Review to confirm

Suitability, Adequacy

& Effectiveness

•Review targets

•Communicate the progress

•Actions to be taken

•Reporting and presenting

4

5

Definition

• A very effective for energy management and improvement

• To define and pursue comprehensive energy management program in the implementation of Energ Management System

“A systematic approach to obtain the actual

energy supply and energy consumption data

and to identify measures to improve

energy efficiency level”

6

Pre Requirements For Energy Audit

• A commitment from the top management to implement energy saving measures

Allocation of resources (auditor, budget)

Availability of information and data (records)

Energy audit equipment

Allocation of time

Hardware and software for data analysis

• Previous and existing energy saving initiatives information and results

• Regulatory compliance

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What To Be Audited?

Energy Management

• Overall energy management system/practice

• Efficiency of the facilities Supply and consumption

• Energy loss

Facts Finding On Item To Be Improved

• General management items

• Energy using equipment

8

Types Of Energy Audit

Preliminary/Walk-through Audit

•Walk-through

•Simple measurements

•No/low cost

•Simple financial analysis

Detailed /Investment Grade Energy Audit

•Thorough data and site analysis

•Complete measurements

•More reliable energy saving potential estimation

•ESMs with high capital investment

•Detail financial analysis

•Conceptual design of proposed measure

•Involving financing and contractual documents

HIGHER SAVING

POTENTIALS

9

Preliminary Energy Audit

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/ saving measures

Set a 'reference point'

Identify areas for more detailed study/measurement

Uses existing, or easily obtained data

10

Detailed/Investment Grade Energy Audit

Provides a detailed energy project implementation plan and evaluates all major energy using systems

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 costs

One of the key elements is the energy balance This is based on an inventory of energy using systems, assumptions of current

operating conditions and calculations of energy use.

Estimated use is then compared to utility bill charges.

Can be carried out in three phases Phase I - Pre Audit Phase

Phase II - Audit Phase

Phase III - Post Audit Phase

Types Of Energy Audit : MAESCO

LEVEL I

LEVEL II

LEVEL III

WALK-THROUGH AUDIT STANDARD INVESTMENT GRADE

Walk through

familiarization Desk top analysis Generate Energy

Intensity Recommend "no-

cost" ESM Written Report with

broad conclusion

Follow up from Level I audit where available; a comprehensive audit

A minimum 7 days logging & metering on major energy consuming equipment of building services or industrial equipment/systems

Review system design, installation, operations and maintenance

Detailing system energy inputs and energy use

Identify sources of inefficiency Compute BEI or Specific Energy

Consumption Index Generate load apportioning Provide Energy Performance

Indicators Recommend "no-cost", "medium

cost" and "high cost" ESM Written report and presentation

Inclusive of all scope of works of Level

I & II with the exception where only EA on specific systems are requested

A minimum of 7 days logging and metering on major energy consuming equipment of Building services or industrial equipment/systems

Detailed review of processes IAQ audit, if required Comfort study, if relevant Detailed recommendation on

comprehensive ESMs Detailed investment plan using NPV

methodology against life cycle Include Indoor Air Quality report to

ensure system is not affected (if chiller audit)

Written report and presentation 11

12

Who Can Perform Energy Audit?

Internal Personnel

• Energy Manager with the Energy Management Team

• Employees working in the energy using process/equipment

Advantages

• Minimize time to familiar and understand the plant operational conditions

• Minimize costs

• Easy access to information and data

• Familiar with energy related issues, processes, equipment and company’s level of expectations (targets, performance indicators, reporting and etc)

Disadvantages

• Limited allocation of time other than main duties

• Limited expertise and knowledge in specific energy saving methods, analysis and technologies

13

Who Can Perform Energy Audit?

External parties

• External experts/consultants (if needed)

Advantages

• Can facilitate the Energy Management Team/EMWG

• Energy management team can learn about new knowledge and technologies in saving energy

• Minimum time to be spent by employees (focus to main duties)

• Timeliness of the completion, reporting, preparation and presentation of findings in the energy audit report.

Disadvantages

• Generally very costly

• Various level of supervisory and reporting (energy manager-auditor, management-auditor)

• Difficult to predict the quality of audit ( no local accreditation for energy auditor)

• Tendency to push for certain products instead of solutions to save energy

ACTIVITY#1

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Your understanding on energy

audit • Please describe basic steps in conducting

energy audit and major output expected from energy audit based on your experiences/exposure/knowledge

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….......

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Basic questions to ask before deciding to

conduct energy audit…

1.Am I implementing energy

management in my organization?

2.Do it need energy audit? If yes,

why?

3.Would energy audit improve my

energy management?

4.What type of energy audit that

I may require?

5.What would I expect from

energy audit at my facilities

6.Would I implement findings

from energy audit? 16

zainiabdulwahab@yahoo.com 019 2152700

www.goingee.blogspot.com.my

www.facebook/zaini.abdulwahab1

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THANK YOU!