Start by checking the Australian Energy Rating Label: more stars generally mean lower electricity use, although the appliance’s size and features also matter. Compare the energy-use figure on the label, and consider estimated running costs alongside the purchase price. Choose a suitable size, as an oversized fridge, air conditioner or washing machine can use more energy than necessary. Using eco settings, avoiding standby power and maintaining appliances properly can also reduce consumption; for current guidance, check energy.gov.au.