Which appliances spend more light?

Which appliances spend more light?

If you have received an invoice with a high cost, and you do not understand why, you may have consumed more energy during that billing period. Therefore, we will give you the keys so that your consumption is not high and thus reduce the amount of the electricity bill.

The electricity bill is divided into two terms. The power term, which is the contracted power which is a fixed price, and the energy term by which the number of kWh consumed during the billing period is quantified. Therefore, the price of your bill will depend on the kWh consumed in each billing period.

For optimal savings in your home it is very important to know how much energy each appliance consumes. According to data collected from the OCU (link), the annual consumption of a house is 9,922 kWh and the cost is 990 € per year. Of course, single-family homes consume twice as much energy as floors.

Which appliances consume more energy in our home?

We will not only take into account the consumption in kWh that each appliance produces, but also the daily use we give it and its duration.

One of the keys to energy saving in our home is to invest in highly efficient appliances. Since although the a priori expense is greater, in the long run we will see it reflected in our electricity bill.

1. Refrigerator.

The refrigerator is the appliance that consumes the most, representing 30% of the energy consumed on your electricity bill. Consumes between 500 A 1000 kWh. If it is a refrigerator with built-in freezer, it is the one that spends the most on our electricity bill. And the reason is that despite being very efficient, it works 24 hours a day.

2. Vitroceramic.

The Vitroceramic is the second appliance that consumes the most, since it is around 2,200 kWh, being double that of a refrigerator, unlike this one, the use is not prolonged. However, your spending can represent more than 15% of your electricity bill. We will save energy by plugging the cooking vessels, as well as the smaller the container, the less energy it will consume.

3. Television.

The television is one of the appliances that consume less energy, since it is only about 100 kWh, however, its continuous use and more in the Stan by state makes it comparable to other higher consumption appliances. The cost of a television is between 12% and 55%, depending on the technology of the screen and its inches. LED technology consumes 25% less than LCD technologies. To save energy it will be essential not to leave it in Stand By function, that is, to turn it off completely. Since in that state can consume 10% of the energy in the bill.

4. Washing machine.

The washing machine 11% of electricity with a consumption of between 1,200 kWh and 1,500 kWh, being one of the appliances with the highest energy consumption. However, unlike the refrigerator, it is not necessary to be on 24 hours a day, but on specific occasions. If we want to reduce the energy consumption of it, we must avoid long-term programs, as well as the use of high temperatures.

5. Oven.

The furnace, although it is not of daily use in many cases, has an energy expenditure of 9%, with an average consumption of between 800 and 900 kWh. This is because it is used rarely, but at the time it is given is a prolonged use. To avoid frights in your bills of light, avoid opening it while it is on since every time it is done it is wasted 20% of the accumulated energy, as well as turning it off beforehand and thus take advantage of its residual heat.

6. Electric heating.

Heating in winter consumes 9% of the total consumption of your electricity bill. That is why, you should avoid leaving it on for a long period of time as well as isolating the home through the use of fabrics, such as carpets and thick curtains.

7. Microwaves.

The microwave consumes around 800 and 900 kWh, being very similar to the energy cost of the oven. In some cases, it can mean a consumption of 7% of all appliances.

8. Dishwasher.

The dishwasher boasts a 6% energy expenditure on your electricity bill with a consumption of around 1,000 kWh. However, each case will depend on the number of people living in that home and the frequency of use. That is why, if there are few, it will always be better to wash by hand.

9. Dryer.

As for the dryer, it is usually used more during the winter season, for this reason, it has an energy expenditure of 3%. It is one of the least consumed appliances in our home.

10. Air conditioning.

The air conditioning has a consumption of about 170 kWh. In summer time there is usually an increase in it, which is why always opt for an efficient device. Avoid leaving it on for a long period of time, as well as using it at night.

What happens to those who are in a "stand by" state.

According to the Institute for the Diversification and Saving of Energy (IDAE) between € 7 and € 10 of the energy consumption of your home belongs to the expense in Stand by.

The "Stand By" function, that is, the standby mode is present in many of the electrical appliances that we have in our home. According to a study by the National Laboratory of Lawrence Berkeley (LBNL) determined that between 10 and 20% of the energy consumed monthly comes from electrical appliances that are maintained as a function of "Stand by".

The microwave, in addition to suppose an energetic cost in its daily use, also consumes if it is off, implying a consumption of 4 W every hour, even up to 25 W if the door is left open.

Even if the TV is not working, if we leave it with the red light, it can consume about 6 W every hour.

The desktop computer is one of the electrical devices that spend more energy, since in hibernation mode they consume around 21 W per hour, and if it is on and with the screen off it can reach up to 70 W per hour.

The laptop in "Stand by" mode can consume about 16 W, as well as 9 W per hour that consumes if it stays plugged.

The music devices when they are kept plugged in can consume about 14 W per hour, even if they are turned off.

Electric coffee makers can consume more than 1 W per hour if you leave them plugged in.

A Videoconsola has an expense of 4 W per hour counting only the device. However, if left in "ready to use" mode it can reach 20 W.


Avoid leaving the charger of the phone plugged in since that way it continues to consume energy.

The power strips that incorporate several plugs also consume. Therefore, try to buy those that have an ignition switch and only use it when necessary.


At Lumisa we always want the best for you, and as a summary we will give you some useful tips that will decrease your invoice of Light!

   Buy appliances with an energy rating of A.
   Do not leave electrical appliances in Stan by function. Unplug them when we do not use them.
   In winter isolate your home with thick fabrics, carpets or thick curtains.
   In summer, turn on the air conditioning for a short period of time and closing all doors and windows.
   Use short and cold programs in the washing machine, as well as fill it to the maximum.
   Keep the freezer clean, and the refrigerator at a temperature between 3 and 7 degrees.


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Estimated reading, the why and how to solve it.

Estimated reading, the why and how to solve it.

Penalty for excess of the contracted power.

Penalty for excess of the contracted power.

Call 900 811 473 or we can call you at an available time