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It’sworth looking at how many watts an appliance uses, but more importantly, how you can reduce your usage of high-wattage appliances. Keep in mind that the annual running costs are only a guide. High wattage appliances like a 3000Watt electric hot water system can become very costly if you take long showers, so cutting down your shower time is always a good idea. On the other hand, watching a 70W television every night would not account for much on your overall bill as it has a relatively low wattage. Remember that large savings can be made if you cut down how often you use high wattage appliances and the length of time you use them. These items include heaters, air conditioners and electric hot water systems. Where possible, try to use energy efficient light bulbs and trade-in your spare fridge if you have one. When replacing old appliances or buying new appliances, always purchase the highest star rating. Energy Usage Guide NB. The average running cost of each appliance contained in this table is an estimate only. The actual consumption for each appliance may vary depending on model type, age, condition and tariff changes. The table assumes that total number of hours used for appliances is based on a typical 4 person household. Things you should know: - The model, age and usage can all influence the final running cost of an appliance.
- These calculations are based on a average four person household.
- Prices are based on EnergyAustralia’s regulated retail domestic all time tariff for 2006 – 2007 for the first 1,750 kWh per quarter.
| Appliance | Size/type | Watts | Hourly | Yearly | | Air conditioner | Portable | 1000 | 8.7c | $31 | | Air conditioner | Small window | 2000 | 17.4c | $131 | | Air conditioner | Large wall | 3750 | 31.3c | $235 | | Air conditioner | Ducted | 7500 | 62.7c | $470 | | Aquarium pump | - | 8 | 0.1c | $8 | | Bathroom light/heater unit | 4 x 275W lamps | 1100 | 13.1c | $7 | | BBQ - electric | - | 2400 | 28.6c | $7 | | Blender | - | 600 | 7.2c | $2 | | Breadmaker | - | 500 | 6.0c | $1 | | Burglar alarm | - | 4 | 0.0c | $4 | | Clock radio | - | 2 | 0.0c | $2 | | Clothes dryer | - | 5000 | 42.2c | $44 | | Coffee machine | - | 600 | 7.2c | $2 | | Computer & monitor | - | 100 | 1.2c | $6 | | Cooktop | - | 4800 | 57.2c | $43 | | Dishwasher | - | 2400 | 15.1c | $31 | | Drill | - | 700 | 8.3c | $4 | | DVD | - | 50 | 0.6c | $1 | | Electric blanket | - | 120 | 1.4c | $5 | | Fan | Ceiling | 90 | 1.1c | $3 | | Fan | Pedestal | 50 | 0.6c | $1 | | Fax machine | - | 10 | 0.1c | $10 | | Freezer | 200 litre | - | 0.7c | $58 | | Freezer | 400 litre | - | 0.7c | $75 | | Frypan | - | 1700 | 20.3c | $10 | | Garbage disposal unit | - | 650 | 7.7c | $2 | | Hairdryer | - | 1500 | 17.9c | $7 | | Heated towel rail | - | 100 | 1.2c | $12 | | Heater | Bar radiator | 2000 | 23.8c | $76 | | Heater | Oil column | 2400 | 28.6c | $128 | | Heater | Fan | 2400 | 28.6c | $64 | | Heater | Underfloor - living room | 3600 | 42.9c | $96 | | Heater | Underfloor - bedroom | 1200 | 14.3c | $32 | | Heater | Underfloor - bathroom | 900 | 10.7c | $24 | | Heating | Underfloor - kitchen | 1200 | 14.3c | $32 | | Hot water | see separate table below | - | - | - | | Iron | - | 1000 | 11.9c | $9 | | Juicer | - | 300 | 3.6c | $0.9 | | Kettle | - | 2400 | 28.6c | $7 | | Lawnmower | - | 1200 | 14.3c | $7 | | Lights | Standard - 75W incandescent | 75 | 0.9c | $4 | | Lights | Compact fluorescent - 15W | 15 | 0.2c | $1 | | Lights | Tubular fluorescent - 45W | 45 | 0.5c | $3 | | Lights | Halogen - down/spot 50W | 63 | 0.7c | $4 | | Lights | Outdoor security - 150W | 150 | 1.8c | $19 | | Microwave oven | - | 1000 | 11.9c | $12 | | Oven (with grill) | - | 2400 | 28.6c | $21 | | Pool pump | - | 725 | 6.0c | $157 | | Pool pump | Salt water chlorinator | 210 | 2.5c | $66 | | Pool heater | Heat pump | 15000 | 178.8c | $465 | | Pool heater | Solar | 250 | 3.0c | $79 | | Printer | - | 100 | 1.2c | $0.3 | | Rangehood | - | 140 | 1.7c | $3 | | Refrigerator - new | 150 litre bar fridge | - | 0.5c | $40 | | Refrigerator - new | 250 litre | - | 0.4c | $37 | | Refrigerator - new | 400 litre | - | 0.8c | $71 | | Refrigerator - now | 500 litre | - | 0.9c | $81 | | Refrigerator - new | 650 litre | - | 1.1c | $97 | | Refrigerator - 20 years old | 400 litre | - | 1.8c | $154 | | Rice cooker | - | 700 | 8.3c | $6 | | Sauna | - | 6000 | 71.5c | $286 | | Portable saw | - | 1000 | 11.9c | $6 | | Scanner | - | 80 | 1.0c | $0.1 | | Sewing machine | - | 120 | 1.4c | $0.2 | | Shaver | - | 15 | 0.2c | $0.3 | | Stereo system | - | 20 | 0.2c | $1 | | Television | Standard | 70 | 0.8c | $8 | | Television | Large flat screen | 135 | 1.6c | $16 | | Television | Plasma | 200 | 2.4c | $24 | | Telepone - cordless | - | 5 | 0.1c | $5 | | Toaster | - | 1000 | 11.9c | $3 | | Vacuum cleaner | - | 1200 | 14.3c | $7 | | Video recorder | - | 25 | 0.3c | $1 | | Washing machine | - | 6000 | 8.0c | $41 | | Waterbed | - | 400 | 4.8c | $146 | | Welder | - | 2400 | 28.6c | $14 | | Whippersnipper | - | 350 | 4.2c | $2 | | Wok - electric | - | 2000 | 23.8c | $12 |
Energy Usage Guide - Hot Water Hot Water Based on a 5 Minute Shower
| Hot water system type | Tarriff | Per shower | Yearly | | Electric storage | Off peak 1 | 8.4c | $197 | | Electric storage | Off peak 2 | 13.1c | $325 | | Electric quick recovery | Domestic all time | 19.4c | $428 | | Solar with electric boost | Off peak 2 | 3.9c | $97 | | Heat pump | Off peak 2 | 3.9c | $97 | | Gas storage | Natural gas | 9.7c | $250 | | Gas instantaneous | Natural gas | 9.7c | $170 | | Solar with gas boost | Natural gas | 3.2c | $75 |
What about appliances not listed on the tables?
Electricity consumption on your bill is measured in kilowatt (kWh). So, 1 kWh means that you use 1000 Watts of electricity for 1 hour. If you have an appliance which is not featured on this table, or you have an item with a different wattage than the one shown here, use this formula to estimate an hourly running cost: Watts / 1000 x AUD11.9215 cents = hourly cost (in cents) Example: A 100 Watt light globe is - 100 Watts / 1000 x AUD11.9215 = 1.19 cents per hour. Compare that to a mini or compact fluro - 100W globe = 1.19 cents per hour. A 15W mini fluro = 0.2 cents per hour for the equivalent amount of light! Note that this is an hourly cost, whilst the table lists an annual cost based on the number of hours the appliance is estimated to run.
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