Quick Energy Assessment Methodology

for Energy Efficiency Optimization

The term “Energy Assessment” refers to the methodology of collecting and analyzing available energy utilities related data in order to establish the “big picture” of the breakdown of energy consumption for a particular facility and identify componentbased- energy saving opportunities within the facility.

The purpose of this best practice document is to describe a methodology and introduce short cut tools by which quick assessment for energy efficiency improvement can be conducted faster, cheaper and better. Its scope include quick energy assessment methodology in a step-by-step manner, simple models for data representation, checklists for identifying areas for energy savings and short cut tools for creating and evaluating process initiatives for energy saving for common use in  plants.

Table of Contents

Page

1.0 Introduction 3

1.1 Definition 3

1.2 Purpose and Scope 3

1.3 Intended Users 4

1.4 Initial Assessment Objectives 4

2.0 Quick Energy Assessment Overview 4

2.1 Energy Efficiency Optimization Task Description 4

2.2 Solution Method Using Decomposition Approach 5

3.0 Methodology 3

3.1 Energy Flow Diagrams 7

3.2 Steam and Power Diagram 11

3.3 Fuel Diagram 12

3.4 Energy Saving Housekeeping List 13

3.5 Energy Saving Generic Checklist 14

4A.0 Appendices for Short-cut Calculations and HGP Energy Study 16

4A.1 Basic Steam Mass Balance 16

4A.2 Basic Energy Utility Targeting Using Pinch Method 18

4A.3 Basic Formulas for Some Quick Savings Estimation 52

4A.4 HGP Detailed Energy Assessment Study 54