A case study on total Energy Conservation opportunities in a Solar power assisted building

1. A case study on total Energy Conservation opportunities
in a Solar power assisted building
Project Batch No. 15
Abhilash Mohanty (11EE016)
Deepayan Panigrahi (11EE017)
Ambika Prasanna Dhal (11EE018)
Under the esteemed guidance of
G.R.K.D. Satya Prasad
Associate Professor
Department of Electrical Engineering, GIET, Gunupur-765 022

2. Department of Electrical Engineering, GIET, Gunupur-765 022
Contents
 Objective
 Importance of Energy Conservation
 Latest technologies in Energy conservation
 Need for Energy Audit
 Types of Energy Audit
 Conservation Opportunities in terms of Electrical loads
 Result Analysis & Report
 Energy Consumption in GIET
 Total Savings
 Conclusion

3. Department of Electrical Engineering, GIET, Gunupur-765 022
Objective
The main objective of this project is to carry out an
analysis on GIET campus in terms of optimising total
load, by different conservation approaches.
The best possible combination of load and energy
efficient methods to be used so as to reduce energy
use.
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4. Department of Electrical Engineering, GIET, Gunupur-765 022
Importance of Energy Conservation
Energy conservation refers to the concept of
reducing energy consumption through using less of
an energy service.
 Most of the energy we use cannot be reused and renewed.
 Energy conservation is important when it comes to climate
change.
 Energy conservation is needed to reduce the adverse
effect of pollution due to excessive use of fossil fuels.
 Increasing energy demand is a drain to national economy.
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5. Department of Electrical Engineering, GIET, Gunupur-765 022
 Energy efficient building
 Waterproofing
 Advance metering (Totally integrated energy monitoring system)
 SCADA (Real time information for power monitoring )
 Energy Efficient motors and Variable frequency drives, etc.
Latest technologies in Energy conservation 5

6. Department of Electrical Engineering, GIET, Gunupur-765 022
 Energy audits that save energy.
 Education on how to save energy.
 Incentives for purchasing new homes built to ENERGY
STAR guidelines.
 Rebates on purchases of energy-efficient products,
including appliances, lighting, and HVAC equipment.
Role of Energy conservation in reducing the
electricity bills
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7. Department of Electrical Engineering, GIET, Gunupur-765 022
Energy Audit is the key to a systematic approach for
decision-making in the area of energy conservation
management.
It attempts to balance the total energy inputs with its
use, and serves to identify all the energy streams in a
facility and quantifies energy usages.
Assessing the Energy conservation procedure 7

8. Department of Electrical Engineering, GIET, Gunupur-765 022
The primary objective of Energy Audit is to determine ways
to reduce energy consumption.
Energy Audit will help to understand more about the ways
energy and fuel are used in any industry, and help in
identifying where scope for improvement exists.
The Energy Audit would give a positive orientation to the
energy cost reduction, preventive maintenance and
quality control programs.
Need for Energy Audit 8

9. Department of Electrical Engineering, GIET, Gunupur-765 022
Electrical energy is measured in kilowatt-hours (KWH).
Energy and demand are the two items that usually
determine the electric bill. It is important to understand how
the electric bill is determined. This alone can often save
money, if not energy. So lighting and motors and some
miscellaneous items can be changed to improve electrical
efficiency.
Conservation Opportunities in
terms of Electrical loads
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10. Department of Electrical Engineering, GIET, Gunupur-765 022
Energy Audit was conducted in the entire college
campus. Lighting load, HVAC load, motors load, total
load calculation etc., gathered the information in all
levels to finalize the total energy audit.
Result Analysis 10

11. Department of Electrical Engineering, GIET, Gunupur-765 022
The whole campus energy audit provided:
 A baseline from which improvement can be measured.
 A plan of action which will allow the organization to
improve their energy performance, reduce electricity
bills and better environment practice.
 Share the positive results.
 Implement new plan.
 Evaluate and assess the success of the audit.
 Identify problem areas and devise plans to tackle
problems.
Result Analysis 11

12. Department of Electrical Engineering, GIET, Gunupur-765 022
Energy Consumption in GIET
Total lighting load 790 2478 664 17 1046
TL
20
TL
40
TL( D)
40
IL
100
CFL
23
Types of load Total Consumption
60W Fans load: 209142 KWH
Power consumption of CRT
monitors:
15000 units
Pumps 61,125 watts
Air conditioner loads 203526 units
Lighting load
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13. Energy Conservation procedure
 Optimized use of light, like use of T5 tube lights, sensors in
libraries, LED lighting, running a separate line for lighting
load and voltage reduction for lighting load
 Use of electronic Fan regulator
 Use Electronic ballasts, The conventional choke
consumes 50 watts of electrical energy (for 40W tube)
while electronic ballast consumes only 30W thereby
saving 20W per tube
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Department of Electrical Engineering, GIET, Gunupur-765 022

14. 14
Department of Electrical Engineering, GIET, Gunupur-765 022
Factors of
comparison
Ordinary Bulb
(100W)
CFL range (1w)
Lamp Life 1000 yrs. 8000 yrs.
Required No. Of
lamps
Eight One
Cost of lamps/lamp 8xRs.10 1 x Rs.235
Cost of Elec. Rs.3.50
Per KWh + cost of
lamp
Rs.1760 RS: 599
Type of Fans Conventional
Regulator
Electronic
Regulator
Cheap quality
fans
75W 70W
ISI Standard
fans
65W 60W
Item Description Conventional
Choke
(duplicate)
Conventional
Choke
(ISI marked)
Electronic
Choke
Power 58W 45W 25w
Energy
Consumption
KWh=3.90/-
741+80=821/- 575+200=775/- 320+225=545/-
Use of CFL Lights Use of Electronic Choke
Use of Electronic regulator

15. Electricity Bill 15
Department of Electrical Engineering, GIET, Gunupur-765 022

16. 16
Department of Electrical Engineering, GIET, Gunupur-765 022

17. 17
Department of Electrical Engineering, GIET, Gunupur-765 022

18. Comparison of expenses in electricity
bills for the years 2012, 2013 and 2014
YEAR
UNITS
CONSUMPTION
TOTAL BILL
IN ₹ (INR)
EXCESS/ DECREASE
IN ₹ (INR)
2012 12,62,595 74,64,873 ________
2013 14,01,792 86,47,701 + 11,82,828
2014 12,67,844 81,62,271 - 4,85,430
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Department of Electrical Engineering, GIET, Gunupur-765 022

19. Result
According to the analysis in 2012 the units consumption
was 12, 62, 595 which had cost around 74, 64, 873Rs/- ,
then with increase in load in 2013 the unit consumption
raised to 14, 01, 792 which nearly had cost around 86, 47,
701Rs/-. Taking the expenses of these years there is an
increase of 15.84% from 2012 to 2013.
From 2014 onwards we started following energy
conservation procedures, due to which though the load
increased by 10% as we came up with a new R&D building
but the expenses on electricity bill decreased by 5.61%.
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Department of Electrical Engineering, GIET, Gunupur-765 022

20. Department of Electrical Engineering, GIET, Gunupur-765 022
Energy plays a key role in achieving the desired
economic growth and energy conservation promises to fill
the gap between supply and demand.
Energy conservation accelerates supply side capacity,
operational efficiency improvements of power
generating stations, reduction of losses in transmission and
distribution, end-use efficiency and renewable
technologies thereby mitigating environmental pollution.
Conclusion 20

21. Future Scope
Energy conservation procedures can be followed to
construct Smart building. Smart building deliver useful
building services that make occupants productive (e.g.
illumination, thermal comfort, air quality, physical
security, sanitation and many more) at the lowest cost
and environmental impact over the building lifecycle.
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22. THANK YOU
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