Replacement of Ballast

8/8/2019 Replacement of Ballast

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Energy Conservation opportunity In Street Light System

Date :-December 27, 2010


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confidential2

Replac

ement ofc

onventional Ballast withEnergy Efficient Electronic Ballast

FlowofPresentation

Background

Objectives

Key Strategies


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Highlight Of REL Street Light System

-Total Number of Street Lights = 88,045

- Type of Lamp Used = 70W HPSV

= 150W HPSV

= 250W HPSV

- Maximum Demand of Street Lighting = 14.11MW

- Loss of Power as watt loss = 1.87 MW

- Operating P.F (Averages) = < 0.82


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Energy Conservation opportunity in Street light system

Objective

- To meet need of time

- Energy Conservation

- Reduction in O&M cost.

- Improve System Reliability

Opportunity available

- Reactive power Management

- Dimming of street light during late night

- Utilization of energy efficient equipment. (E.g. Lamps, Ballast )


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Pilot Project Result Based on meter Reading

Replacement of existing 21 no of Magnetic Ballast with Electronic ballast

ParameterAverageKW

AverageKVA

AverageKWH

P.F.

AverageLux( BelowLamp)

% I THD %V THDAverageBurninghrs

WithOld Luminaries

Magnetic Ballast4.09 5.30 1253.50 0.77 40.00 30.63 0.73 327.32

With NewLuminaries MagneticBallast

3.88 4.80 1212.00 0.93 44.00 30.63 0.73 341.10

With New luminaries

With electronicBallast

3.60 3.60 1388.00 1.00 47.90 4.73 0.70 390.18

Step -1

PF Improve by 20.77 % from 0.77 to 0.93 , KW reduced by 5.13% ,KVA reduced by 9.43%

Step-2

PF Improve by 7.5 % from 0.93 to unity , KW reduced by 7.22% ,KVA reduced by 26.23%


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Comparison of Kwh /hrs consumption based on meter reading---pilot project

Parameter Average KWHAverage

burning hrs

Average

KWH / Hrs

With Old Luminaries

Magnetic Ballast1253.50 327.32 3.8296

With New Luminaries

Magnetic Ballast1212.00 341.10 3.5532

With New Luminaries

Electronic Ballast1388.00 390.18 3.5573

KWH consumption / hrs reduced by 7.2 % when old luminaries are replaced with new luminaries

There is noc

hange inc

onsumption when new magnetic

ballast replac

ed with elec

tronic

ballast

If all old 150 W luminaries with magnetic ballast are replaced with electronic Ballast

- KWH/Hr will be reduced by 7.2 %

- KVA will be reduced by 32.1%

- KW Will be reduced by 11.98%

- PF will improve by 29.88%


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WATT LOSS CALCULATION-BASED ON METER READING

A B C D E=B/C F=E-D

INSTALLED WRECORDED

W( Avg)

NUMBER

OF LAMP

WATT /

LAMP

WATT

CONSUMED

PER LAMP

WATT

LOSS/LAMP

WITH OLD 150W

LUMINARIES-MAGNETICBALLAST

3150.00 4009.00 21.00 150.00 190.90 40.90

WITH NEW 150W

LUMINARIES -MAGNETICBALLAST

3150.00 3860.00 21.00 150.00 183.81 33.81

WITH NEW 150W

LUMINARIES-ELECTRONICBALLAST

3150.00 3600.00 21.00 150.00 171.43 21.43

Watt loss consumed per unit decreased by 47.6 % from old magnetic ballast to electronic ballast.

Watt consumer per lamp decreased by 10.19 % from old magnetic ballast to new magnetic ballast


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Cost benefit analysis Data as on 31/01/2010

NPV = -67.98 Million

Project is not finically viable

We should wait for technology development.

1st year 2nd year 3rd year 4th year 5th year

Initial Investment (Mu RS) - 130

Energy saved (MU) 1.31 1.31 1.31 1.31 1.31

Cost of power perches (

Million Rs)

10.51 10.51 10.51 10.51 10.51

Cost material

( Million Rs)

2.24 2.24 2.24 2.24 2.24

Cost Labor & Transport

( Million Rs)

2.58 2.58 2.58 2.58 2.58

Selling cost of scrap

recovered (Million Rs)

1.67 0.00 0.00 0.00 0.00

Total cost saved 17.04 15.34 15.34 15.34 15.34


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Thank you

27 December 2010

Documents

Replacement of Ballast