green cooling initiative: Domestic refrigeration

»Promoting green cooling worldwide«

Domestic refrigeration

Refrigerators are often the first electrical appliance a household buys. Fridges and freezers are often responsible for a large proportion of a household’s energy consumption. For example in Brazil this is on average 30%.

Domestic refrigeration is the subsector with the highest number of units. The global stock is estimated to be approaching 1,500 million units. 100 million units are produced annually.

Subsector Domestic refrigeration
Typical application refrigerators, refrigerator-freezers with usually a smaller freezing compartment in or attached to the refrigerator, upright freezers, chest freezers
Typical end-users Predominantly households
Main refrigerants used HFC-134a (60% of existing units), 50 to 250 g
Natural refrigerant alternative HC-290 (propane) and HC-600a (isobutane) are used in 50% of newly produced refrigerators.

Hydrocarbon (HC) refrigerators need less refrigerant than HFC refrigerators and a typical HC refrigerator with a volume of ca. 250 l contains ca. 55 g HC-600a.
Growth rate / future demand Growth rates depend on the region, as saturation rates are already above 100% in some developed countries like the US or in Western Europe, but are still as low as around 20% in some developing countries.
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Scope of improvement: direct emissions

  • Switch to natural (hydrocarbon) refrigerants
  • Reducing end-of-life emissions
  • Reducing overall cooling needs / behavioural changes

Read more on the scope of improvement: direct emissions

Scope of improvement: energy efficiency

  • Optimise components: compressor (variable speed), heat-exchanger
  • Using hydrocarbon refrigerants
  • Reducing overall cooling needs / behavioural changes

Read more on the scope of improvement: energy efficiency

More information