Energy Efficiency and Energy Audit Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
Energy Efficiency and Energy Audit
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
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
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
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.
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
• Financial benefit• Technical benefits• Better working conditions• Protection of Environment• Increase Competitiveness
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
Reasons for Energy Efficiency
To increase profits by reducing production cost.
Use potential ways of energy saving and using it in more efficient ways.
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
Objectives of Energy
Efficiency
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Energy efficiency
opportunities in
industries
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
)(
2
lossloadfullxkVARated
loadkVAlossloadNo
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Transformer
800 kW
1000 kVA
600
800 kW
600800 kVA
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Power Factor
= Reduced Demand (kVA) x NPRs 250 /kVA
= 200 kVA x NPRs 250
= NPRs. 50,000 per month
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
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.
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
Cost benefits of Power
Factor improvement
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Used in machines, Compressors, drives, etc…
Motors
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Life time Energy Cost of
Motor
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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
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
Variable Frequency Drive
2% 7%
18%
73%
Compressor Costs over 10-year Life Time
Installation costs
Maintenance costs
Capital costs
Energy costs
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
• Location – for cool, clean, dry air at intake
• Discharge pressure
• Air leakages
• Chocked filters
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Energy Efficiency for
compressors
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Load Management
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Saving opportunities by
shifting production timings
peak: 10.52 NPRs/kWh
standard: 8.52 NPRs/kWh
off peak: 5.40 NPRs/kWh
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Lighting
Size 20 to 25 % more
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Diesel Generator Capacity
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Boiler
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Insulation
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• 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
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
उर्जा दक्षतजले हजमीलजई कम उर्जा प्रयोग गरि अझ बढी उत्पजदन गने योग्य बनजउंछ l
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
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?
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
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
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
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
Mohammad Abul Hasan Khan Copyright 2016 EEU BuCCI
Thank You for listening
Mohammad Abul Hasan KhanCertified Energy Auditor