NSW households emitting 2.5million tonnes of CO2 annually

That's equivalent to 'putting an extra 500,000 cars on the road every 12 months'.

Much of it is wasteful, according to an EnergyAustralia survey.

"Bad habits with appliances waste energy and waste money and like most bad habits, they should be broken."

We have proved how much water we can save, we can do it for electricity. The incentives are both financial, and environmental.

Almost 90 per cent of householders rinse dishes before putting them in the dishwasher, with almost half rinsing them in hot water.

More than a quarter of all households run the dishwasher before it is full.

Many householders also use refrigeration inefficiently with 22 per cent of people surveyed saying they leave the door open while unloading shopping and 29 per cent own a second fridge that is rarely used.

Young people waste more energy than older people, with people under 30 more likely to leave the fridge door open while making a meal (28 per cent) compared with people over 60 (7 per cent).

People under 30 are also more likely to use a clothes dryer, with 29 per cent saying they mostly use the dryer compared with only 9 per cent of people aged over 60.

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