Typical household energy use

Energy use varies throughout the year and depends on the number of people per household, the type of dwelling, and the number and age of appliances in use.

IPART periodically surveys households in New South Wales to learn more about residential resource use and to collect the socio-economic, demographic and behavioural data that inform and strengthen our pricing review process.

Typical electricity use

Based on the results of our 2010 survey of households in the Blue Mountains, Illawarra and Sydney, we know that larger households tend to use more electricity than smaller ones. Typically:

  • Households with 1-2 residents use about 1,400 kWh of electricity per quarter
  • Households with 3-4 residents use about 2,100 kWh of electricity per quarter, and
  • Households with 5 or more residents use at least 2,700 kWh of electricity per quarter.

Further, residents of freestanding houses tend to use more electricity than residents of semi-detached dwellings and flats, and the more energy-intense appliances a household of any type has - such as air conditioners, refrigerators, dishwashers and swimming pools - the more electricity it uses.

Typical gas use

The results of our 2010 survey also indicate that gas use varies by household size. Typically:

  • Households with 1-2 residents use roughly 3,100 MJ of gas per quarter
  • Households with 3-4 residents use roughly 5,400 MJ of gas per quarter, and
  • Households with 5 or more residents use at roughly 6,400 MJ of gas per quarter.

But gas usage also depends on what it is used for, and households that use gas only for cooking only use about 500 MJ per quarter. Furthermore, residents of freestanding houses tend to use more gas than residents of semi-detached dwellings and flats, and households in cold climates tend to use more gas than those in warmer areas.

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