Energy Efficiency of Appliances

It is becoming more and more necessary that our appliances have lower energy consumption. The energy efficiency of an appliance is the ability of an appliance to perform its function with less energy consumption. The energy label of household appliances is an informative tool that allows you to know quickly and easily the energy efficiency of household appliances.


To do this, it is based on a classification scale by letters and colors, which ranges from A and the color green, for the most efficient teams, to D and the color red, for the least efficient teams. Includes up to 3 additional energy efficiency classes: A+, A++ and A+++.


It also includes a series of pictograms with additional information on the characteristics of the equipment.

Energy labeling is mandatory throughout Europe for the following types of appliances:

  • Freezers and Refrigerators.
  • Washers - dryers.
  • Washing machines.
  • Domestic light sources.
  • Electric oven.

Energy efficiency is measured on the following scale:

The most efficient:

  • A+++
  • A++
  • A+

Moderate consumption:

  • TO

High consume:

  • C
  • D

Although the most efficient devices are more expensive at the time of purchase, they are generally amortized before the end of their useful life, so the savings are much greater.


Energy efficiency guidelines for household appliances:


FRIDGE: The leadership of this list is carried out by the refrigerator, with 30.6% of the electricity consumption of our homes.


  • When buying a new refrigerator, we recommend class A +++, since you can save up to 75% on consumption compared to class D. This saving can be translated into approximately 1,000 euros at throughout the useful life of the appliance, and will prevent the emission of one and a half tons of CO2 into the atmosphere
  • Be careful not to leave it open.
  • Clean it at least once a year.
  • Do not introduce hot food, because the effort to cool it will mean a greater consumption.


Energy efficiency guidelines for household appliances.


TV: Without a doubt, it is one of the appliances that spends the most time on, with 12.2% of total consumption.


  • When you are not using it, avoid the “stand by” mode and turn it off.
  • If you are going to buy a new television, keep in mind that those that have LED technology consume 25% less than LCS and 40% less than plasma screens.




  • Use low temperature programs and try to always put it at full load.
  • If you have contracted an electricity rate with hourly discrimination, try to use the washing machine in off-peak periods where the price per KWh is lower.


OVEN: In fourth place, we find this appliance, with 8.3% of total consumption.


  • Try to open it as little as possible while you are cooking.
  • Keep it clean of fat, its use will be more efficient.
  • Turn it off before you finish cooking, you will take advantage of the accumulated heat.


COMPUTER: One of our "favorite" appliances in recent years can consume 7.4% of the electricity in a house, so pay close attention to find out how to reduce part of this consumption.


  • Don't use screensavers.
  • Reduces screen lighting.
  • Turn off peripherals (speakers, printer...).
  • Turn off your computer when you're not using it.


DISHWASHER: Another of our faithful allies in the day-to-day life of a house consumes 6.1% of electricity.


  • Always try to use it when it is full.
  • Use the economy or low temperature programs.


DRYER: Although it is not a very common household appliance, it can consume 3.3% of electricity consumption.


  • Always try to fill it to the maximum.
  • If it has a self-drying option, use it.