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Energy Management in Buildings

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Umul Baneen Zafar

on 18 November 2013

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Transcript of Energy Management in Buildings

Industry 25%
Transport 20%
Agriculture 20%
Buildings 30%
Average 25%
The Energy Pyramid
It takes one hour to promote energy conservation, but only one second to save energy.
Reduce Energy Intensity and
Carbon Emissions
By Changing the Way You Use Energy
Energy Management (EM) is an activity organized to optimize the use of energy by avoiding waste

Energy management is not just about implementing energy efficient technologies
its about OUR behaviour
Energy Efficiency is an escalating concern!
Generation Capacities and Grids
Natural Resources are Declining
Demand is Booming
Possible Savings for Pakistan by EC
US $ 2 Billion/Year.

EC Potential in Pakistan
Renewable Energy “is the peak of the pyramid and thus should be the last part of the pyramid to be built.
'Energy Conservation'
refers to the efforts made to reduce energy consumption
'Energy Efficiency'
refers to save energy by adopting more efficient means
Switch off: don’t leave on standby
To turn the heating/ AC notch down
Case Study
20 Tube Lights
8 hours/day
2040 hours/year
T8 Triphospor + Magnetic Ballast
Capital Cost 10,000 PKR

Total Energy Consumed 1,468.8 KWH

Cost of Energy Consumed 26,438 PKR

CO2 Produced 1,351 Kg
T5 Triphosphor + Electronic Ballast
Use the alternate to save the energy and your money

T8 lights with magnetic ballasts T5 lights with electronic ballasts

Incandescent light lamps compact fluorescent lamps

Motion Detectors

Energy Saving Tips

Turn off equipment when not in use
Close curtains, shades and blinds
Regularly clean and perform maintenance on appliances
Lighter coloured walls
Set thermostats -78°F in summer & 68°F in winter
T5 Triphosphor + Electronic Ballast
Capital Cost 12,000 PKR

Total Energy Consumed 1,142.4 KWH

Cost of Energy Consumed 20,563 PKR

CO2 Produced 1,051 Kg
36 Watts
28 Watts
Power: 18 Watts
Incandescent Light (IL)
Compact Fluorescent Lamps (CFLs)
Power: 100 Watts
Analyse your SAVINGS?
Capital Cost
T8 is cheaper than T5
Energy Saved
326.4 KWH saved
Cost of Electricity
5,875 PKR saved
CO2 Offset
300 Kg less CO2 Offset
Activity Answers
No. of bulbs: 10
No. of bulbs: 10
Cost of 1 bulb: Rs. 20
Cost of 1 bulb: Rs. 25
Find the Capital Cost and the ENERGY consumed in 1 day?
Energy Consumed= Power * No. of bulbs* Time
Incandescent Light (IL)
Capital Cost= 20*10
= 200 PKR
Capital Cost=25*10
= 250 PKR
Compact Fluorescent Lamps (CFLs)
Energy= 24*100*10
= 24,000 KWH
Energy= 24*18*10
= 4,320 KWH
Switching to Solar Power Energy
T8 Triphosphor + Magnetic Ballast
36 Watts
No. of Tube Lights: 20
Watt per Unit: 36 Watt
Daily Usage: 8 hours
Daily Sunshine: 12 hours
Total Watts: 720 Watts
Total Capital Cost= 182,635 PKR
Payback Period
Payback Period (Years)=182,635/ 26,438
= 6 Years
Umul Baneen Zafar
Eco-Internship Coordinator

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