Energy Efficiency and Energy Audit

Energy Efficiency and Energy Audit

Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI


Contents…

1. EEU at a glance

2. Energy Efficiency Key factors of success in EE

3. Opportunities for Energy Efficiency

4. Why to have an energy audit

Energy Efficiency Unit: At a Glance

• Established 2 years ago with GIZ support

• Well equipped and experienced engineers

• International Energy Efficiency Expert

• ISO 50001 EnMS Certified Energy Auditors

• EEU has rich experience

• Performed more than 80 energy audits


Key Factors for the Success

of Energy Efficiency

• Top Management Involvement• Top/Senior Management visibly demonstrated their

interest and concern in energy saving achievement.

• Responsibility for energy use• Those responsible for production i.e., production costs -

labour, materials and other costs – made responsible for

controlling energy costs. The user of energy should be

responsible for its control as well.


• Financial benefit• Technical benefits• Better working conditions• Protection of Environment• Increase Competitiveness


Reasons for Energy Efficiency

To increase profits by reducing production cost.

Use potential ways of energy saving and using it in more efficient ways.


Objectives of Energy

Efficiency


Energy efficiency

opportunities in

industries


)(

2

lossloadfullxkVARated

loadkVAlossloadNo


Transformer

800 kW

1000 kVA

600

800 kW

600800 kVA


Power Factor

= Reduced Demand (kVA) x NPRs 250 /kVA

= 200 kVA x NPRs 250

= NPRs. 50,000 per month


Demand Charge Saving

Reduced Maximum demand (kVA) charges

Reduced distribution losses (kWh)

Eliminates penalty charges

Prolong the life of distribution equipment

Boosts voltage levels

Increase your system's capacity, etc.


Cost benefits of Power

Factor improvement


Used in machines, Compressors, drives, etc…

Motors


Life time Energy Cost of

Motor

compensation - Editable.xlsx

compensation - Editable.xlsx


Life time Energy Cost of

Motor

4%

96%

Price of Motor Life time Energy Cost

RPM(Speed) = (f x 120) / p

Power α speed3

Willing to install a damper, go for variable frequency drive


Variable Frequency Drive

2% 7%

18%

73%

Compressor Costs over 10-year Life Time

Installation costs

Maintenance costs

Capital costs

Energy costs


• Location – for cool, clean, dry air at intake

• Discharge pressure

• Air leakages

• Chocked filters


Energy Efficiency for

compressors


Load Management


Saving opportunities by

shifting production timings

peak: 10.52 NPRs/kWh

standard: 8.52 NPRs/kWh

off peak: 5.40 NPRs/kWh


Lighting

Size 20 to 25 % more


Diesel Generator Capacity


Boiler


Insulation


• Installation of energy Efficient equipment

• Monitoring the specific energy consumption regularly

• Discovering the energy saving potentials

• Calculating specific energy consumption

• Energy Efficient Industry Energy

Efficient Producer

Energy Audit

Implementation

Monitoring and

Evaluation

Lifecycle of Energy Efficiency


उर्जा दक्षतजले हजमीलजई कम उर्जा प्रयोग गरि अझ बढी उत्पजदन गने योग्य बनजउंछ l


1. To identify opportunities to reduce energy

consumption

2. To understand the energy consumption pattern

3. To prepare a baseline study report

Why to perform energy audit?


Energy Audit Process

Pre-Site Work

• Collect energy data

• Understand the plant process

• Develop a site sketch

• Identify the required equipment

Site Visit

• Interviewing plant managers/operators

• Taking measurement and pictures

• Taking notes

Post-Site Work

• Reviewing the notes taken

• Collecting further required data

• Preparing Audit Report


Energy Audit Price

S. No.Scale of

CustomerDemand

EA

Price

Rate for

DEA

1 Small 100 kVA 10,000 150,000

2 Medium 101 - 500 kVA 20,000 200,000

3 Large

500 kVA - 2 MVA 30,000 250,000

Above 2 MVA 40,000 300,000


Thank You for listening

Mohammad Abul Hasan KhanCertified Energy Auditor

[email protected]

mailto:[email protected]

Engineering

Energy Efficiency and Energy Audit