Save for more light
The demand for electricity is witnessing
a rapid growth and most of the utilities in our country are always
short of meeting the requirement. The shortfall is more pronounced
during peak hours of the day. So, the need of the hour is to use
electricity in an efficient manner and conservation of energy
to mitigate the shortfall to the extent possible. This has also
been recognized as a national priority. Consumers are requested
to become aware and do their best to use electricity efficiently
Please try to switch off geysers, air-conditioners, pumps and washing machines during peak period (between 6 and 10 pm).
Buy electrical appliances with ISI mark only.
One of the best energy-saving devices is the light switch.
Turn off lights when not required.
Many automatic devices can help in saving energy used
in lighting. Consider employing infrared sensors, motion
sensors, automatic timers, dimmers and solar cells wherever
applicable, to switch on/off lighting circuits.
As far as possible use task lighting, which focuses light
where it's needed. A reading lamp, for example, lights only
reading material rather than the whole room.
Dirty tube lights and bulbs reflect less light and can
absorb 50 percent of the light; dust your tube lights and
Fluorescent tube lights and CFLs convert electricity to
visible light up to 5 times more efficiently than ordinary
bulbs and thus save about 70% of electricity for the same
Ninety percent of the energy consumed by an ordinary bulb
(incandescent lamp) is given off as heat rather than visible
Replace your electricity-guzzling ordinary bulbs (incandescent
lamps) with more efficient types. Compact fluorescent lamps
(CFLs) use up to 75 percent less electricity than incandescent
A 15-watt compact fluorescent bulb produces the same amount
of light as a 60-watt incandescent bulb.
Use T5 tube-lights and electronic ballasts in place of
conventional tube-lights and copper/aluminium chokes.
Air Conditioners and fans
Use ceiling or table fan as first line of defence against
summer heat. Ceiling fans, for instance, cost about 30 paise
an hour to operate - much less than air conditioners (Rs.10.00
You can reduce air-conditioning energy use by as much
as 40 percent by shading your home's windows and walls.
Plant trees and shrubs to keep the day's hottest sun off
One will use 3 to 5 percent less energy for each degree
air conditioner is set above 22C (71.5F), so set the thermostat
of room air conditioner at 25C (77F) to provide the most
comfort at the least cost.
Using ceiling or room fans allows you to set the thermostat
higher because the air movement will cool the room.
A good air conditioner will cool and dehumidify a room
in about 30 minutes, so use a timer and leave the unit off
for some time.
Keep doors to air-conditioned rooms closed as often as
Clean the air-conditioner filter every month. A dirty
air filter reduces airflow and may damage the unit. Clean
filters enable the unit to cool down quickly and use less
If room air conditioner is older and needs repair, it's
likely to be very inefficient. It may work out cheaper on
life cycle costing to buy a new energy-efficient air conditioner.
Use electronic regulator for fan speed control.
Make sure that refrigerator is kept away from all sources
of heat, including direct sunlight, radiators and appliances
such as the oven, and cooking range.
When it's dark, place a lit flashlight inside the refrigerator
and close the door. If light around the door is seen, the
seals need to be replaced.
Refrigerator motors and compressors generate heat, so
allow enough space for continuous airflow around refrigerator.
If the heat can't escape, the refrigerator's cooling system
will work harder and use more energy.
A full refrigerator is a fine thing, but be sure to allow
adequate air circulation inside.
Think about what you need before opening refrigerator
door. You'll reduce the amount of time the door remains
Allow hot and warm foods to cool and cover them well before
putting them in refrigerator. Refrigerator will use less
energy and condensation will reduce.
Make sure that refrigerator's rubber door seals are clean
and tight. They should hold a slip of paper snugly. If paper
slips out easily, replace the door seals.
When dust builds up on refrigerator's condenser coils,
the motor works harder and uses more electricity. Clean
the coils regularly to make sure that air can circulate
For manual defrost refrigerator, accumulation of ice reduces
the cooling power by acting as unwanted insulation. Defrost
freezer compartment regularly for a manual defrost refrigerator.
To help reduce heat loss, always insulate hot water pipes,
especially where they run through unheated areas. Never
insulate plastic pipes.
By reducing the temperature setting of water heater from
60 degrees to 50 degrees C, one could save over 18 percent
of the energy used at the higher setting.
Microwave Ovens & Electric Kettles
Microwaves save energy by reducing cooking times. In fact,
one can save up to 50 percent on your cooking energy costs
by using a microwave oven instead of a regular oven, especially
for small quantities of food.
Remember, microwaves cook food from the outside edge toward
the centre of the dish, so if you're cooking more than one
item, place larger and thicker items on the outside.
Use an electric kettle to heat water. It's more energy
efficient than using an electric cook top element.
When buying a new electric kettle, choose one that has
an automatic shut-off button and a heat-resistant handle.
It takes more energy to heat a dirty kettle. Regularly
clean your electric kettle by combining boiling water and
vinegar to remove mineral deposits.
Don't overfill the kettle for just one drink. Heat only
the amount of water you need.
Turn off your home office equipment when not in use. A
computer that runs 24 hours a day, for instance, uses -
more power than an energy-efficient refrigerator.
If your computer must be left on, turn off the monitor;
this device alone uses more than half the system's energy.
Setting computers, monitors, and copiers to use sleep-mode
when not in use helps cut energy costs by approximately
40%. 04. Battery chargers, such as those for laptops, cell
phones and digital cameras, draw power whenever they are
plugged in and are very inefficient. Pull the plug and save.
Screen savers save computer screens, not energy. Start-ups
and shutdowns do not use any extra energy, nor are they
hard on your computer components. In fact, shutting computers
down when you are finished using them actually reduces system
wear - and saves energy.
Workshops, factories, pumping stations
Instal capacitors and switch on when the work place is
Improve efficiency of compressors, air-conditioning plants
by ensuring regular maintenance.
Ensure proper loading/sizing of the motors, pumps etc.
Source : BEE-India, New Delhi.