1. One of the simple methods to save
energy is to replace electric bulbs by CFL or LED.
·
A
bulb consumes too much of energy compared to advanced methods of lighting.
·
It
is not simply replacing the bulbs but it is the intelligent way of selecting
the power of CFLs at different places to reduce energy.
2.
In a room or a hall,
we require 100Watt of bulb illumination only when we are reading
or writing.
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·
Most
of the times we will be talking or taking rest, for which some very less
illuminations are sufficient.
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3.
Note: so called ZERO candles
bulb is actually 10 to 15Watt!
·
It is better to have CFL
of 2Watt or
LED of 1Watt,
which are suitable as bed lights also.
·
So, in a room or hall, there must be two
lights, thus increasing initial cost a little, but we can save lot of energy,
as seen in the table 1 below
Characteristics of each light
|
CFL( compact
fluorescent light)
·
These are the solutions of today.
·
Saves energy & money.
·
Available from 2 watt to 22 watt.
|
|
Spiral
CFL
These spirals CFL are
costly & used as show lights. The illumination is same as ordinary CFL
|
|
LED light
These are most efficient & so energy saving.
At present the cost is a bit high, but in the long run it saves energy &money
|
1.
moderate power consumption
2.
2years durability
3.
moderate cost
-ve points
1.
will not illuminate in low
voltage
2.
|
Filament bulb
+VE
points
·
Initial cost
is less
·
Available at
almost every shop
--VE
points
·
Consume high
energy
·
Produces heat
·
Lost only for
6 months(average)
|
3.
flicker during starting, unless
electronic choke is used.
4.
illumination reduces after 1
year.
Table1 below shows initial cost, running
cost etc of different lights & savings of energy &money in a period of 2years.
|
Type of lighting
|
No of units
For 24 months
|
Initial cost(Rs)
For 24 months
|
Running cost(Rs)
@ Rs4/unit
|
Total
(Rs)
|
Saving
Compared to bulb(Rs)
|
|
|
18x24=
432
|
20x4=80
Life of 1 bulb=6months, so 4bulbs
for 2 yrs
|
1780
|
1840
|
zero
|
|
Tube light
|
173
|
200
|
700
|
900
|
940
|
|
CFL
|
80
|
180
|
320
|
500
|
1340
|
|
LED
|
40
|
400
|
160
|
560
|
1300
|
|
Combination
|
30
|
280
|
120
|
400
|
1440
|
So,
combination of lights is the best way & start doing it now!
