Energy Management and Project Consulting
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This calculator is intended only to give you an indication of the energy consumption of various commonly used appliances and machines, and the approximate energy cost of running them.
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Residential Space Power Calculator
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Enter your average price per kWh for electricity in SA Rands, eg 0.56 or 1.10, etc:
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Demand per unit
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PRODUCT:
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QUANTITY:
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RUN (W)
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START (W)
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Energy saver bulb
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15
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20
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60W bulb
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60
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60
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100W bulb
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100
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100
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500W floodlight
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500
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500
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Refrigerator
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700
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2800
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Freezer
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700
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2200
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Chest freezer
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500
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2500
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Stove plate (6" element)
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1500
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1500
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Electric oven
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4000
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4000
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Microwave oven (800W)
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800
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1200
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Electric frying pan
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1300
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1300
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Coffee machine
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550
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1000
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Kettle
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1000
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1000
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Toaster (2 slice)
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1050
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1050
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Small TV
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300
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300
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Large TV
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800
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800
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DSTV decoder
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150
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150
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CD/DVD player
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150
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150
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Washing machine
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1250
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2500
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Tumble dryer
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4500
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6500
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Dishwasher
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1500
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3750
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Vacuum cleaner
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800
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800
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Hair dryer
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1200
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1200
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Iron
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1000
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1000
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Oil heater
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800
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800
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Geyser (150L)
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3100
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3100
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Total power demand (kW):
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Approx energy cost to run this equipment for 1 hour:
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R
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The golden rule for energy conservation is: Switch it off when not in use.
Please do so. It will assist you to save energy, save money and preserve our planet.
