SABS publishes standard for energy efficiency labelling

Submitted by: Margaret McKenzie, Monday, March 26, 2012

On 15th March 2012 the South Africa Bureau of Standards (SABS) introduced a standard for the energy efficiency of appliances.    The standard, SANS 941, applies to non-ducted air conditioners, heat pumps, audio and video equipment, dishwashers, electric lamps, electric ovens, refrigerators, freezers, tumble dryers, washer-dryer combinations and washing machines. It is currently a voluntary standard.

The standard has three general requirements:

  1. Power factor: the power factor of appliances should be 0.85 or higher.
  2. Passive power use: the passive standby power of the appliance should be less than a single Watt.
  3. Energy label: the appliance should have an energy label that is easily visible to a potential buyer.

The main component of the energy label is a relative rating of the appliance in a range from ‘A’ to ‘G’.  With ‘A’ representing appliances that are most efficient in this relative scale and ‘G’ representing appliances that are least efficient.  The determination of the relative efficiency rating of appliances varies for each category of appliance and SANS 941 refers to a range of additional standards for these determinations.

The label will also include the average energy consumption per year of the appliance and, in the case of washing machines and dish washers, the average water consumption. See sample of an energy efficiency label below.

Sample Energy Efficiency Label (Source: SABS)

Margaret McKenzie