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Energy Savings booklet assumptions


Saving is an annual saving based on 4 showers per day for a period of 4 minutes each. 40% of water used is hot water. Existing showerheads use 23 litres of water per minute, compared to low-flow showerheads which use 9 litres of water per minute. This calculation is based on a hot water system being connected to Tariff 33.

Saving is an annual saving based on changing 6 existing incandescent globes at 75W each to 6 energy efficient bulbs at 15W each, with an average running time each of 3 hours per day. This saving is based on Tariff 11.

Saving is an annual saving based on using the washing line instead of running a dryer at an hour each time, three times per week. This saving is based on Tariff 11.

Air conditioning
Saving is based on a 6 per cent saving in operating costs per degree. As a guide, if you run your air conditioner at the recommended temperature of 25 degrees, instead of 21 degrees, and you operate it as per the manufacturer's instructions, you could achieve a saving in operating costs of up to 24 per cent.

Savings vary according to the size and age of the equipment. However, by doing without a second fridge, it may be possible to save up to $100 a year on a 200 litre model and $200 a year on a 350 litre fridge. This saving is based on Tariff 11.

Savings can be achieved by using front loading washing machines as manufacturers state that on average, top loaders use up to 60 per cent more water and 40 per cent more electricity.

A hot water tap leaking 60 drops of water a minute may equate to 9000 litres of hot water wasted per year resulting in an extra $25 per year on Tariff 31 or $54 per year on Tariff 33.

Ergon EnergyTownsville City CouncilDelfinHoneycombesCafaloQueensland Government