energy savings in the home.ppt

8/11/2019 energy savings in the home.ppt

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Energy Savings in theHome


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Energy Use in the Home

Lighting 15% Cooling 44% Food Preservation/Preparation 15% Laundry 5% Entertainment 15%

Phantom Load 6%


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Lighting

Artificial lighting consumes almost 15%of a household's electricity use.

You can reduce lighting energy use byselecting lighting and sources that useenergy more efficiently CFL: 21 watts * 8 hrs/day = P 5.04

Incandescent bulb: 100 watts * 8 hrs/day = P24


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Use Energy E icientLighting


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Compact Fluorescent Lamps

Offers the potential for significanteconomic and environmentalsavings. Compact fluorescent lamps use 70 - 80%

less energy Have a longer life usually 6000-

10,000 hours compared to 750 to

1000 hours for a standardincandescent bulb


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Why we still dont use FLs

High up-front cost Suitability

Aesthetics Size Color Dimmers

Risk


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Energy Saving Tips forLighting

Turn off lights when not in use. Dust your lamps and light fixtures.

Even a thin layer of dust reduced light

levels. Maximize the use of daylighting.


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Cooling

Cooling accounts for about 44%of the energy use in a typicalhome, making it the largestenergy expense for most homes. A/C 1 HP 944 watts * 8 hrs/day =

P136 Fan (16) 70 watts * 8 hrs.day =

16.80


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Energy Saving Tips for A/Cs

Choose right size and style for room.

If you leave the room for a long time,turn off your air conditioner.

Turn off unused lights and otherappliances that give off heat.

Change incandescent to fluorescent. Anincandescent bulb is much better a heaterthan a light source.


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Energy Saving Tips forA/Cs

Use a small electric fan to spreadcooled air around your room. Thisprevents the cooled air from layering

and settling to the floor.

Choose an air conditioning unit withhigh Energy Efficiency Ratio (EER).The higher the EER, the more efficientis the unit.


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Frequent changes in thermostat settings willincrease operating costs.

For cooling situations where you can

increase room temperature by 1C, youcould save up to 10% of operating costs. Keep all doors closed so that the

conditioned air is restricted to the arearequiring cooling.

Close curtains over large glass areas toprevent up to 16% of heat transfer


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Routinely replace or clean aircon filters. Clogged, dirty filters block normal air flow

and reduce a system's efficiency

significantly. Keeping the filter clean can lower your airconditioner's energy consumption by 5% 15%.



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Food Preservation/Preparation

The refrigerator is one of the largestenergy users in the household. Therefrigerator can account for as muchas 15 20% of your homes totalenergy usage. 8 cubit feet ref used 24 hrs/day = P56.16

If your refrigerator is more than 15years old, youll save on your electricbills if you replace it with a moreefficient unit.


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Energy Saving Tips for Refsand Freezers

Defrost refs and freezers regularly. More than -inch ice build up of frost puts up

an extra load on the compressor motor.

Check refrigerator if it is not losing itscool because of a leaking gasket. Test the gasket by closing the door on a

peso bill. If the bill slips out when you pull onit, either the gasket needs a replacement orthe door needs adjusting.


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Frequent opening and closing of refscontributes to frost or ice buildupand causes compressor motor towork overtime. As much as possible, keep door closed.

Choose the right size or capacity ofrefrigerator suitable to your need. Largecapacity ref has bigger motor compressorthat requires more power to run.


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Dont place the refrigerator near the stove oragainst an uninsulated wall facing the sun.

Dont set the thermostat colder to get it startedon the theory that it will freeze faster.

Vacuum the refrigerator coils twice a year.Dirty coils make the refrigerator work harderand use more energy.


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Energy Saving Tips forKitchen Appliances

Do not boil water in an open pan/pot. Coveredpot/pan will boil it sooner over less heat. Once itis boiling, keep it with a low flame as possible.

Always clean range top, burners and reflectors.

It helps to produce more heat consuming lessenergy. Preheat oven only for baked foods that require

precise temperatures such as breads, cookies,and cakes. Casseroles, roasts, and broiledfoods don't need to go into a warm oven.

Turn your oven off about five minutes beforecooking time is complete.


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Energy Saving Tips forKitchen Appliances

Never put small pans on large heatingelements (on electric stoves) or big burners(in gas stove). Flame or heat that exceed thediameter of the pan is lost in the air.

Have all ingredients ready when cooking toavoid frequent switching on and off theelectric stove.

Thaw frozen food thoroughly before cooking.


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Laundry

Most of the energy useassociated with laundry comesfrom heating the water. water heating accounts for 90% of

the energy used by washingmachines

Two ways to reduce the amount

of energy used for washingclothes use less water use cooler water

E S i Ti f


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Energy Saving Tips forLaundry Appliances

Wash heavy and light weight laundry separately.Heavy laundry requires different setting. Plan to wash and dry full loads of laundry to save

on energy and water.

Pre-soak dirty clothes, probably the night before. Avoid having to run the washing machine twice. Turn off flat iron shortly before ironing the last

piece. It will stay hot just enough to finish the job. Electric clothes drier uses large amount of energy

to dry clothes. Practice using the old-fashionedclothes line.


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Phantom Load

Almost all electronicappliances consumepower in their"standby" modes

Accounts for 6 10% oftotal electricityconsumption


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How to deal with thesephantom loads

Unplug the appliance! However,constant plugging and unplugging is apain and wears out the plug and

socket quickly. Use quality extension cords with

multiple female plugs that are

switched on the plug strip. When theplug strip is switched off, all theappliances plugged into the strip aredisconnected from the power source.


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For more information

Department of Energy

http://www.doe.gov.ph/neecp/downloads.htm


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Energy Savings in theHome

energy savings in the home.ppt

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