Other energy uses


Applies to multi-dwelling developments only.

In multi-dwelling developments, BASIX assesses the energy efficiency of the following appliances:

  • Refrigerator
  • Dishwasher
  • Clothes washer (washing machine)
  • Clothes dryer

Note: If appliances are selected in BASIX then they must be installed before occupation.

The ability to consider appliances in multi-dwelling developments is a concession provided as a result of public exhibition. It is a policy decision that recognizes multi-dwelling developments include common areas and communal services such as lobbies, car parks, swimming pools and gyms, providing services to the residents of the dwellings. Multi-dwelling developments have common area lighting, car park ventilation, lifts and other significant energy demands that are not required in single dwellings.

What is energy star rating?

Energy star rating labelEnergy star rating is a joint Australian Government, State and Territory Government Agencies Program. It rates appliances on their energy consumption and publishes an energy rating for a variety of appliances, to help consumers make the most efficient appliance selection - the higher the star rating the more energy efficient the appliance.

A list of appliances and their energy star ratings can be found at www.energyrating.gov.au.

Clothes drying lines

In BASIX the installation of clothes lines reduces the energy use assigned to clothes dryers. Indoor and outdoor clothes drying lines are recognised in single dwellings and multi units.

Indoor or sheltered clothes drying line

  • An indoor clothes drying line must be a fixed (permanent) installation that is not heated by a dedicated gas or electric heater (it may be heated using waste heat from another appliance – you will need to apply for an alternative assessment if you wish to claim the greenhouse gas emission savings of doing this).
  • A sheltered clothes drying line is a fixed (permanent) outdoor clothes line that is protected from the rain, e.g. on a covered balcony or under a verandah.

Examples of indoor or sheltered clothes drying lines include a screened line on balconies and an extendable line over a bath.

See also the Building Code of Australia provisions for minimum indoor clothesline length or laundry facility size in multi-unit apartments.

Private outdoor unsheltered clothes drying line

A private outdoor unsheltered clothes drying line is an outdoor clothes line that receives at least two hours of sunlight during winter, and is not shared with other dwellings.

Common clothes drying line (Multi unit only)

BASIX includes the option of installing a common area clothes drying line in multi unit developments.

It should be noted that clothes drying facilities must be provided as part of the Building Code of Australia (See BCA volume 1: Part F2 Sanitary and other facilities).

Refrigerator space

On average, approximately 15% of household greenhouse gas emissions can be attributed to the refrigerator (Energy Use in the Australian Residential Sector 1986-2020).

A well ventilated refrigerator space meets the following criteria:

  • the refrigerator will be unenclosed
  • the refrigerator will only be enclosed on three sides, including the rear and top
  • if the refrigerator is to be enclosed on three sides (not including the rear and top), ventilation grills are installed below the refrigerator (either in the floor underneath the refrigerant coils, from the rear, or within the plinth) and above the refrigerant coils, to allow air flow equal to the air flow that would pass over the refrigerant coils were the refrigerator unenclosed

Diagram of an unenclosed refrigerator Unenclosed refrigerator

Diagram of a refrigerator enclosed on 3 sidesRefrigerator enclosed on 3 sides

Diagram of a poorly ventilated refrigeratorPoorly ventilated refrigerator 

Cooktops and ovens

BASIX assesses cooking systems based on the energy efficiency of the system and the greenhouse gas emission intensity of the fuel used.

A gas cooking system will give a higher score than an electric cooking system.

The order of cooktop scoring in BASIX is:

  1. Gas cooktop (highest score)
  2. Induction cooktop
  3. Electric cooktop (lowest score)

Tip: If you install a gas cooking system, ensure the kitchen is designed with good natural ventilation. If installing a rangehood for ventilation, exhaust to the outside wherever possible.