Energy efficient washing machines

Washing machines can last for more than 10 years, so it’s important to buy the most energy efficient washing machine to suit your needs.

Washing machine running costs (six loads/week)

The table below shows running costs for different types of washing machines based on six loads washed per week.

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Wash cycle

Loading Type

Star Rating

Cold only connect or small electric water heater
Dual hot and cold connect

Annual Energy Cost*  Annual GHG Emissions (kgCO2-e)** Annual Energy Cost* Annual GHG Emissions (kgCO2-e)**

5 kg capacity – small

   

 

 

All warm

Top


               
 $148  712

$56

179        

Half warm

 $81  391

$35

123   

All cold

 $14  68

$14

68

All warm Top
2.5 stars
 $84  404

$36

126

Half warm  $49  236  $25 97
All cold  $14  68  $14 68
All warm Front

 $102  491  N/A  N/A
Half warm  $66  317  N/A  N/A
All cold  $30  143  N/A  N/A
All warm Front
3 stars
 $69  333  N/A  N/A
Half warm  $48  231  N/A  N/A
All cold  $27  129  N/A  N/A

7 kg capacity – medium

   

 

 

All warm

Top

1 star
 $207 998

 $74

229

Half warm

 $111 532

 $44

148     
All cold  $14 68

$14

68

All warm Top
3.5 stars
$78  377  $34  121
Half warm  $46  222  $24  148
All cold  $14  68  $14  68
All warm  Front   $143  687   N/A  N/A
Half warm  $90  436  N/A  N/A
All cold  $38  184  N/A  N/A
All warm  Front  Four and a half stars  $52 248   N/A  N/A
Half warm  $40  195  N/A  N/A
All cold  $29  142  N/A  N/A

8.5 kg capacity – large

   

 

 

All warm

Top

$209  1,008

$75

230

Half warm

$112 538

$45

149

All cold

$14 68

$14

68

All warm Top 3.5 stars
$95 459  $75 230
Half warm $55 263 $45 149
All cold $14 68  $14 68
All warm Top

$173 834   N/A  N/A
Half warm $109 524  N/A  N/A
All cold $45 215  N/A  N/A
All warm Front Four and a half stars
$63 301  N/A  N/A
Half warm $48 233  N/A  N/A
All cold $34 165  N/A  N/A

* Calculations assume electricity tariff 27.5 c/kWh, and natural gas tariff 2.07 c/MJ (for heating water);

The annual cost figures shown are only the energy cost. Front load washing machines generally use less water than top load load machines and so have lower annual water use costs.

Its is assumed that dual hot and cold connect top load machines are connected to a natural gas storage water heater. For the "cold only connect or small electric water heater" option.

It is assumed that the top load machines are connected to a small electric water heater operating on a general (or peak) electricity tariff.

It is assumed that the front load machines have a cold only connection, and that they use a "semi-cold" option when set to a cold wash. Energy costs will be slightly lower on the cold wash cycles if the front load machine has a "true cold"  wash option. Some front loaders have a dual hot and cold connection and these will have lower energy costs if they use hot water for their normal wash cycles. Some dual connect machines will only draw hot water on their hot cycle, and heat water internally on their normal cycle.

**GHG Greenhouse Gas coefficient used is 1.324 kilograms of carbon dioxide equivalent emissions per kilowatt hour for electricity and 0.05652  natural gas.