POWER DEMAND AND ENERGY CONSUMPTION OF DOMESTIC APPLIANCES

This is designed to give an idea of the costs of various daily things we do in our homes that are electrical in nature. How much does it cost to wash a load of clothes or sleep under the electric lights ? What does it cost to leave a light on all night? We have collected national average values of energy use to find out how much you are paying to operate the different devices in your home. If you feel that you are using too much electricity at home then these notes should help you. Listed below are details of the approximate hourly electricity consumption for all types of household equipment. Electricity consumption is measured in kWh units.

             
S/N Appliance Type Rating Power Demand in Kilowatt (Kwh) Rated Current in Amperes (Amps) No. of Hrs to Consume One Unit of Electricity ( i.e. 1 Kwh)
1. Lamp   40 watt 0.4 0.2 25
      60 watt 0.06 0.25 17
      100 watt 0.10 0.4 10
2. Iron Small 750 watt 0.75 3.2 1.3
    Medium 850 watt 0.85 3.6 1.2
3. Toaster Regular 1000 watt 1.0 4.3 1
4. Electric Kettle Small 2000 watt 2.0 8.6 0.5
    Medium 3500 watt 3.5 15 0.3
5. Water-heater 50 litre 1200 watt 1.2 5.2 0.8
    100 litre 2500 watt 2.5 11 0.4
6. Cooker (4plate with oven ) Small 6000 watt 6.0 26 0.2
    Regular 8000 watt 8 34 1.2
    Large 10500 watt 10.5 45 0.1
7. Single-plate Cooker portable 1800 watt 1.8 7.7 0.6
8. Fan Table 0.08 HP 0.06 0.25 17
    Standing 0.1 HP 0.7 0.3 14
    Ceiling 0.3 HP 0.22 0.9 45
9. Air Conditioner Small 1.5 HP 1.1 4.7 1
    Medium 2 HP 1.5 6.5 0.7
10. Refrigerator Small 0.2 HP 0.15 0.6 7
    Medium 0.25 HP 0.19 0.8 5
    Large 0.3 HP 0.22 0.9 4.5
11. Trans. Radio Radiogram   5 watt 0.005 0.002 200
             
1000 watt            =         1 Kilowatt (kw)
1 HP                   =          0.746 Kilowatt
1 Kwh                =          One Unit of Electricity = Kw * 1 hr i.e. 1 Kilowatt used for 1 hour.
 
More on energy conservation for home appliances...
 
 

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