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

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

Project Batch No. 15Abhilash Mohanty (11EE016)Deepayan Panigrahi (11EE017)Ambika Prasanna Dhal (11EE018)

Under the esteemed guidance of G.R.K.D. Satya PrasadAssociate ProfessorDepartment of Electrical Engineering, GIET, Gunupur-765

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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

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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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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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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

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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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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

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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

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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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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

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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

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Energy Consumption in GIET

Total lighting load

790 2478 664 17 1046

TL20

TL40

TL( D)40

IL100

CFL23

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

13Energy 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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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

15Electricity Bill


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18Comparison of expenses in

electricity bills for the years 2012, 2013 and 2014

YEARUNITS

CONSUMPTIONTOTAL 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


19Result

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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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

21Future 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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THANK YOU