THE AVERAGE RUNNING COST OF HOUSEHOLD APPLIANCES WITHIN AUSTRALIA ARE: Refrigerators and freezers – 336kWh per year costing $96 Clothes washers – 166kWh per year costing $47 Clothes dryers – 1080kWh per year costing $308 Dishwashers – 657kWh per year costing $188 Home entertainment and office equipment – 471kWh per year costing $119 Swimming pools and spas – 1250kWh per year costing $357 (swimming pool) and 330kWh per year costing $94 (spa) HOW CAN YOU SAVE MONEY ON YOUR HOUSEHOLD APPLIANCE ENERGY BILL? - Appliances on standby use a small amount of power, constantly - ‘phantom load’ and it accounts for 10 % of your energy bill! - Avoid using this excess electricity by switching appliances off at the wall. - Specific appliances can be used more efficiently as well. - When using a dryer - - try to separate light items from heavy items - dry full loads rather than single items - do multiple loads in a row to make the most of the residual heat in the dryer. Fridges - temperature settings can be adjusted so perhaps only the beer fridge really needs to be uber cold. - Kitchen - try using the appropriately sized saucepan for the element, and there’s no need to preheat a gas oven. - Star ratings are an important way of measuring the efficiency of any new appliance you purchase. HOW TO CALCULATE ELECTRICITY USAGE COSTS The above power calculator uses a simple formula to calculate annual energy usage and costs. Here's how it works: Electricity Usage Per Year = (Watts / 1000) * Hours/Day * Days/Week * Weeks/Year = kWh/year Electricity Cost Per Year = kWh/year * (cents/kWh / 100) = $/year Using the calculations that were used in the example, calculate which Dryer is the most energy efficient? Explain your reasons for your choice. _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________