Saving tips

This version of is not compatible.

Non-compatible browsers, in addition to preventing you from using all of the webpage’s features, are slower and present security risks.

We recommend that you update your version of your browser now, or that you access the page using another compatible browser .

Go to content
  • CAT
  • EN
  • ES

Electricity and gas for your home

Endesa - Electricity, Gas, People

Main Home

Page saved correctly as favourite

Saving tips

Saving tips

Tip of the week
How to choose the best fan for your home

The summer is here and the heat affects our homes and our workplaces. In fact, I bet you are in front of the computer fanning yourself with anything you can lay your hands on. Put it down and switch on your fan.
Although it is hard to believe, fans are no longer just those small, white and terribly noisy electrical appliances that used to be placed in the middle of the living room. The industry has experienced a real revolution in recent years and fan designs have progressed so much that they are now basic decorative items in any home... And the envy of your guests!
Furthermore, these devices are made with top-quality materials which, very often are environmentally friendly too. There are many different types of fans: ceiling, desk, tower… Every room, every space or every home requires a particular type, therefore at Endesa we want to help you if you are thinking of choosing one to cool off during these months.

How much room do you have?

Put your wallet away! Before throwing your money away, you should measure the room in which you are going to install the fan, you don’t want the fan taking up half the room do you? And then there’s no room for you… Therefore, the fan should be larger or smaller, depending on how big or small the room is.
If you are planning to have a ceiling fan, you should consider the height of the room, as it should be safe while also accessible for maintenance tasks.

Choose a fan in accordance with the style of your room

Think about how you want to decorate the room or what type of fan would suit the style you have already defined. There is a vast range of fans on offer today, including classic models and modern models, offering an avant-garde look and fresh designs... in every sense of the word.

Types of fans

You will also have to choose the type of fan you want or the one that best suits your requirements:

Tower fans. The main advantage, apart from providing fresh air, of course, is that it gives the room a decorative touch. Particularly steel designs, a very popular material in interior design at the moment.

Ceiling fans. The ideal place for these fans is the bedroom or the living room. You must be very careful when installing them as, depending on the material used and the weight of them, it can turn out to be an extremely difficult task. Therefore, you should ideally get a professional to install the fan.
In terms of how they work, you will find fans with little strings that you pull for them to start or stop rotating, more sophisticated devices, with the control panel installed in the wall to control the speed and remotely controlled fans.

Desk fans. These are perhaps the ones most seldom used, but if your home has a slight retro or very modern look, this could be the ideal option for decorating your rooms. Basically, you have a whole host of possibilities to choose from: wood, steel, varied colours... Another advantage is that they are very manageable and perfect for small spaces such as your computer desk or small office.

Tower fans. Generally, these fans are slim and vertical. They are marvellous for placing in that empty corner you have been trying to fill or in smaller rooms. In addition, the blades are protected by a guard, which makes them safer for children or animals.

Careful with the size of the blades

This aspect is very often not taken into account, but that is why we are here. With ceiling fans, you should be very careful with the blade size. The size you choose does not solely depend on the area you want to cool, they should also be maintained at a minimum distance of 50 centimetres from any lateral obstacle and at least two metres from the floor.
In this regard, the most common diameters are 75, 106, 122 and 132 centimetres. Bear in mind that, for a 15-square metre room or more, you are going to need a fan measuring at least 106 centimetres in diameter. Although, as you can imagine, the number of blades is also relevant: the more blades, the more breeze. Elementary, my dear Watson.

Fan or air conditioning?

Fans are a good alternative to air conditioning when only used sporadically. If you don't think you will be using your air conditioning very often, fans will become your new best friends. However, if you use fans very often or you think you will be using them over a longer period of times, perhaps it is wise to change to air conditioning.

How to get the most out of your car air conditioning

When you open the car door a mass of hot air hits you like a blast from a furnace. It is that time again! Summer is here and that means it is the time when you put the air conditioning on before the radio. We all do it!

And with the good weather, who would not want to go to the beach? And what about when we get in the car to go on holiday? On these hot journeys the air conditioning becomes your best friend. But watch out! It is not only a convenience, it is also essential for your own safety, since heat increases fatigue and makes you feel sleepy, making driving more dangerous.

In fact, many studies have shown that when the temperature inside the car reaches 30 °C, driving errors increase by 20%. This just goes to show that heat affects drivers' concentration. Therefore, the best use and perfect maintenance of the air conditioning are essential for safe driving.

Don't set the temperature too low

If, in addition to air conditioning, your car has climate control, the ideal is to set the temperature between 22 - 24 °C. This is the best way to not get too hot and also avoid catching a cold. Because... you don't want to go to the beach loaded down with a box of Kleenex, do you?

In addition, setting the air conditioner to below 22 °C uses more fuel, in some cases up to 20% more. Remember! The lower the temperature, the more fuel you use.

Where do I point the air vents?

This is a very common question. With the heat turning the car into a sauna people often direct the air conditioning onto their bodies with the intention of quickly cooling themselves down.

But in reality it is not recommendable to direct the air vents towards your neck or face. In fact, you should not direct them towards any part of your body. The best idea is to point the vents upwards, as cold air is heavier than hot air it will then move around more readily inside the car. While the side vents should be pointed towards the windows to offset the heat when the sun shines directly onto them.

It is also not a good idea to put the fan on at full power when you first get into the car if it has been sitting in the sun for several hours. We realise that it feels as hot as an oven, but you have to resist the temptation. It is best to ventilate the car first by lowering all the windows for a few minutes before turning the air conditioning on.

Cleanliness above all

You should keep the radiator clean and make sure that all the hoses and pipes are in good condition. You should also check that the air filter is not clogged and that it works correctly, since it ensures that the air entering the car is free from pollen, dust and other harmful substances.

Changing it from time to time will make sure your car stays cool and prevent the possible accumulation of fungus and bacteria in the ducts. This happens quite commonly and you will notice it immediately because an unpleasant vinegary smell will fill the vehicle.

Once a month does not hurt

Apart from relieving the summer heat, the ventilation system also helps to demist the windows when there is a thermal contrast in the car. Therefore, it is not only used in the summer, it is also used in winter, when it is raining and cold the ventilation system is essential for good visibility.

It is also a good idea to put it on at least once a month and let it run for a few minutes. This simple task will prevent the ducts from drying out and collecting dust, mould or bacteria.

Do not forget the gas

Remember to keep the coolant liquid topped up as well as the air conditioning gas. If the car does not cool down quickly when you turn the air conditioning on this may be a symptom that it needs a "hit" of gas, which usually costs less than 30 euros.

Also remember that the air conditioning should also be checked periodically. Especially in older cars, when it should be checked every two years. To do this just go to a garage so that an expert can check it out and, where possible, the garage should specialise in your make of car as this is always more effective.

How to extend your phone’s battery life

We have all become dependent on our smartphones. We use them for almost everything. And that is why we notice how the battery life seems to be so much shorter than before. In most cases, much shorter than we would like. And to cap it all, the battery always goes at the worst possible time, when you need your phone the most. It's Murphy’s Law. It never fails.

As we know this is a common problem, we have decided to prepare a few tips to prevent your phone battery switching off in the afternoon and while we are at it, extend its useful life. Your battery may even last all day. A miracle!

Don’t fully charge you phone

You may think we are joking, but we’re not. Depending on the characteristics of the Lithium battery, ideally it should be charged between 30% and 80% of its capacity. And in fact, ideally it should be charged to different amounts each time. But never leave your mobile plugged in once it has reached 100% of its capacity as it will gradually become less efficient.

Dim the screen brightness

More than any other component the display consumes the most battery life. Therefore by reducing the brightness you will boost the battery level and enable your phone to last a few more hours. Go to Settings->Display->Brightness to adjust the brightness manually. And if you combine this with dark backgrounds, you will save even more energy.

Switch off your connections

Is your Wi-Fi always connected to see if you can save some data? And what about Bluetooth? Ok, I know. It is easier to always have them enabled but these connections are constantly looking for networks to connect to, consuming a great deal of energy in doing so. A tip: disable them when you are not going to be using them. And the same goes for Internet data. Disable them when you don’t need them.

Close applications

This is very simple, but often forgotten. We have more and more icons on our smartphones. A whole load of apps that are running without us even knowing. This means using valuable processing cycles and, of course, your battery life. Disable everything you can: games, Facebook, Twitter… Everything you won’t be using at a specific time.

Location? No thank you

Lots of applications now register the exact location of each user. Tracking your every geographical location makes your mobile consume a huge amount of energy by constantly using the GPS, telephone antennas and Wi-Fi areas. Therefore, disable your GPS and the location requests by all the applications installed on your mobile. Your battery will appreciate it.

Bonus track

If you are going to have a busy day without nipping home or you will be holding endless conversations and other requirements mean your mobile has to be available at all times, we recommend carrying an external battery. However, before buying one, think carefully about the capacity you really need. It is not the same purchasing 2,500 mAh external battery as purchasing a 16,000 mAh one, which will charge your battery to 100% of its capacity.

Smart thermostats: savings and comfort

If you are one of those people that go out and leave the heating on, or those that hate to come home from work to a freezing cold house or simply one of those that want to keep their energy consumption under control, smart thermostats will be of great help to you.

The new generation of smart thermostats connects directly to your Smartphone and enables you to control your household’s energy consumption at all times. You can switch your heating on or off from wherever you are, programme how your boiler works depending on the day of the week and independently adjust the temperature in each room. You can even see if someone enters your house thanks to motion sensors.

And best of all, they learn your habits and they can establish the most suitable programmes to reduce energy consumption, which is why they are called smart thermostats. If you would like to find out more about smart energy management systems for your household, we invite you to discover our Nexo system. You will be impressed!


How to save electricity in the office

If at the end of every month you tremble at the imminent arrival of the electricity bill for your office, it is time that you took measures to reduce electricity consumption. And when we say offices, we also mean warehouses, workshops or any other place of work.

First get rid of those old fluorescent lamps. Not only do they flash, make noise and need changing regularly, they also use twice as much electricity as LED lights, which also turn on instantly, are more environmentally friendly and do not give off heat. If you also install an automatic presence detection system in corridors and common areas, you will prevent the lights from being switched on all day when no one needs them.

If you have any doubts, use Endesa’s free online Energy Efficiency Diagnostic service, with which you can estimate your annual energy consumption and compare it with companies in your sector, as well as receiving customised improvement measures and finding out about best practices.


When is the best time to charge an electric vehicle?

The best option for charging electric vehicles is to sign up for a comprehensive solution that includes a time interval for charging the vehicle for free. With Endesa’s comprehensive charging solution for electric vehicles, for example, you can cover all your electric vehicle charging requirements from €1.05 per day, including the installation of the charging equipment and maintenance. If you add the Zero Tempo tariff you could do 10,000 Km a year for €0, given that from 01:00 to 07:00 in the morning you can charge your electric vehicle for free.
Another option is the Tempo Happy tariff, which allows you to choose any two hours of the day in which your electricity will cost 0 euros, so you can charge your vehicle during those hours. However you will need a fast or semi-fast charging system in order to allow you time to charge your battery during those hours.
Lastly, if you have a time restriction tariff, it is best to charge your electric vehicle at night, when electricity is cheaper. But beware, the “off-peak” time interval in which electricity is cheaper may vary. Generally speaking, in summer it is from 23:00 to 13:00 and in winter it is from 22:00 to 12:00. This gives you enough time to fully charge your car’s battery (conventional charging, the slowest system, which takes approximately 8 hours).
If you have the “super off-peak” tariff, the cheapest interval will be from 07:00 in summer and in winter. With this tariff you will spend €1.55 for every 100 km covered, compared with the €7.79/100km minimum cost of combustion engine vehicles. You can also use the charging points located in public spaces, which you will find here.

How to get the ideal humidity level at home

The United States Environmental Protection Agency (EPA) recommends that indoor humidity levels should be between 30% and 50%, depending on the outdoor temperature: more humidity when it is warmer and less when it is colder. Exposure to very dry air can irritate the mucus membrane and cause throat dryness leading to a greater risk of catching a cold and flu, while exposure to very humid air can cause breathing difficulties and breathing allergies. It can also cause mildew and mites.
To prevent the air getting too dry, you should try to keep the temperature at around 20 degrees (if it is too hot the air will become too dry) or place a bowl of water on top of radiators. You can also install humidifiers in certain rooms or at certain times, for example, if you have a baby with mucus or breathing problems.
On the other hand, excessive humidity can be avoided by airing rooms well, particularly in the kitchen when cooking or in bathrooms after a shower. Always use the fume extractor in the kitchen. It may be useful to install an extractor in the bathroom that starts up when the light is switched on for example. You should also avoid drying clothes indoors (or if you have no choice, place a dehumidifier in the room when you are drying them) and avoid keeping plants in the room. If high humidity persists, you can install a mechanical ventilation system, however, you should seek professional advice to determine the cause of the humidity.
In any event, it is wise to obtain a good hygrometer to measure the exact relative humidity in each room.

Air your home without wasting energy

A well-aired home is essential for our comfort. Its purpose is not only to prevent excessive humidity, but also to eliminate pollutants such as radon gas, mites or an excessive concentration of carbon dioxide, which may be damaging to our health. But how can we do it without wasting energy?
The best method is to air the home for no longer than 10 minutes, so the minimum amount of heat is lost. In this way, no great thermal losses will occur. It’s advisable to open the windows of all the rooms in the house at the same time, leaving the doors to the rooms open. Of course, the radiators should be turned off. The draught caused will enable a total renewal of the air in a very short time, preventing the walls from cooling down, as heating them up again would mean extra power consumption.
Put these measures into practice and you’ll see how your efficiency increases and your bill diminishes. If you want to check, use Endesa’s free information and advice service infoEnergía, where you can verify and compare your energy efficiency.

Save gas by installing thermostatic valves

By installing thermostatic radiator valves you can choose the temperature of each room at any given time. This means you will not need to have the heating on in every room when it is not needed (because you are not using that room at a particular time or because it gets sunlight all day and is warmer than the rest of the house). If you install electronic thermostatic heads, you can also programme them to adjust a different temperature in each room. Remember that by accessing the endesaclientes (you need to log in or register if you have not already done so), you can view all your consumption details immediately. Knowing how you use energy will enable you to improve your consumption habits, which means greater savings for your and less CO2 for the planet.

Do not dry your clothes on the radiator

Your clothes will dry, yes, but the energy efficiency of your heating will be reduced, which will affect your bill.
Furthermore, Scottish researchers found that this method of drying clothes indoors was related to the appearance of particular mould spores that pose a health risk in 25% of the 100 homes sampled.

Don't fill the kettle unless you need to

Just a few quick calculations: electric kettles usually hold between 1 and 2 litres, while old-style kettles may hold as much as 5 litres. To make a cup of tea, all you need is a quarter of a litre. Filling your one-and-a-half litre kettle to the brim can make tea for you and five of your friends. Do you really need to fill it right up and waste electricity or gas to bring the water to 100 degrees?
It’s much better to boil just the amount you’re going to drink and to serve it when the first bubbles appear, without waiting for the switch to trip or for the kettle to whistle.

Your oven can bring your stale bread back to life

Nor a baguette that is like chewing gum the next day or a rock-like loaf of bread. But one of the golden rules of an efficient consumer is not to throw away stale bread. You can use it in endless recipes (soups, French toast, migas (sautéed breadcrumbs), breadcrumbs...). And you can even eat it once you have revived it.
All you need is water and an oven. First dampen the stale bread without soaking it. Use a water spray or run it very quickly under a tap. Then place it in the oven at 175ºC and leave it for 7 minutes. The end result will be crispy bread for your toast.

Seal your doors and windows with weather stripping

Winter enters your home underneath your door and through the gaps in your windows (particularly if they are old). Every degree costs money and in the end, it is you that has to pay the bill. It is up to you to apply a simple and cheap solution: weather stripping. These are strips of fabric (or rubber) filled with cotton (or hessian) which can be used to seal any gaps. They are sold in hardware stores and DIY stores.

Print fewer tickets and trust your smartphone more

You are used to not being asked for a paper ticket at the cinema, in museums or by airline companies, as they also accept electronic tickets. Then: Why are you still printing everything? Why do you think this unnecessary expense gives you more authority? Work it out: you are switching on the printer just to use electricity, ink and paper. Just to be allowed to access places in which your admission was guaranteed simply by showing your mobile device.

Bleed all the radiators in your home so that they are ready for the winter

You should bleed the radiators at least once a year, especially before the start of winter, since they accumulate air bubbles that block the flow of heat and, therefore, they block their flow and increase energy consumption. In that way, you will have your desired temperature and save energy.

Use the fireplace with moderation

Winter is coming and you will want to light a good fire, but remember that many old natural fireplaces are inefficient and extract more heat than what they produce.

Prepare your home for the cold: Place curtains and carpets

Curtains and carpets can keep the heat during the winter and thus help you save energy. We advise you to place curtains and carpets throughout your home so that you can reduce the heat that is lost through the floor and windows. They will also give your home a greater feeling of warmth.

Use a pressure cooker. Your pocket will thank you!

Its main advantage is that you can cook at a higher temperature for a shorter time, so you will spend less energy when preparing food. Also, more vitamins and minerals are retained by a pressure cooker as opposed to a normal pot.

Replace your oven with a microwave

According to the Spanish Institute for Energy Diversification and Saving (IDAE), using the microwave brings about approximately a 60% to 70% saving when compared with a conventional electric oven. Also remember that it’s advisable to arrange the food in small pieces so that they cook more quickly, and to turn it off a few minutes ahead of time.

Tips about your fridge

It’s the best way to prevent nasty smells and the appearance of bacteria. Take this opportunity to clean its interior, following the manufacturer’s instructions.

Turn off the lights when you leave a room

Make sure that any unnecessary lights in your home are switched off, and remember to turn off the lights whenever you leave a room and there’s nobody else there. Lighting represents about 20% of power consumption in most Spanish homes, and with this simple habit you’ll reduce your electricity bill.

Turn on your air conditioning only when necessary

To use your air conditioning more efficiently, it’s a good idea to turn off the equipment in advance if you’re going to go out, as its effect will remain for a few minutes after turning it off. If you turn it off just before you leave, you’ll be wasting power. We recommend you turn it off about 15 minutes before you leave home..

How to use your dishwasher correctly?

This means that you will use it fewer times, so you will save on electricity and water. Our recommendation is to use short wash programmes and at a low temperature. Our maintenance recommendation is to frequently clean the filters and the inside of the dishwasher with a specific cleaning product. This will make it more efficient during a longer period of time.

Clean the light bulbs and lampshades

The same is true for light bulbs since the dirt absorbs the light and reduces its intensity, while consuming the same. Clean them often, always with the light bulbs off. Do the same with the lampshades. Keeping your light bulbs clean may save you around 20% of the electricity bill. A dirty light bulb may reduce the light by up to 50% due to the dust and dirt accumulated.

Main tips on how to save energy with an iron

When you plug in the iron for just a few clothes, you are not taking full advantage of it and it becomes expensive. You should always iron first the clothes that need the highest temperature and then take advantage of the heat that is left over for the rest of the clothes. Remember to always unplug the iron if you stop using it for a moment.

Protect your home with an awning this summer

They are the first protection against the sun's rays since they reduce the heat by up to 60%, depending on the type of awning and orientation. Awnings are an easy way to provide a better home temperature. They also have the added advantage that they still let in the light. You can save up to 60% of energy by installing awnings on the windows that are oriented towards the sun. Jot this down for this hot summer!

Cover your food in the fridge

By covering your food, you will reduce the humidity caused by evaporation and prevent the formation of frost. So now you know: no hot food in the fridge!

Washing machine energy saving tips

Liquid laundry detergents are best for your washing machine, as the machine does not have to work so hard. If you use a solid detergent, we recommend mixing it with water before inserting it in the washing machine. For best results, always use the necessary dose, as too much detergent will only cost more and prevent the machine from rinsing properly.

During the summer months avoid using electrical appliances

During the summer months, avoid using the hairdryer, the dishwasher, the oven or the television on very hot days. This will keep rooms cooler and you will not have to use the air conditioning so much. The same applies to the kitchen; try to make cold meals so you do not need to use the oven or the stove.

Save on your garden lighting system

For your terrace or garden lights, it is best to choose solar lamps or photovoltaic lights that charge during the day with sunlight and do not consume electricity. Place them in areas that get plenty of natural light during the day so they will stay on throughout the night. Keep the solar panels clean so dirt does not affect their performance. If you want to save even more on your electricity bill, find out more about our Tempo Light Always Win on our website. We will tell you how to save!

Save energy this summer and regulate the temperature in your home

The fabric of these curtains improves insulation and enables you to regulate the incoming light, controlling the amount of sunshine that enters the windows and preventing the rooms from getting too hot. Otherwise the temperature would rise and therefore energy consumption would too.

Efficiency and savings with your fridge

Never put hot foods in the refrigerator, it will only raise the temperature and the refrigerator will have to use more energy to reduce that temperature again. When you put liquids in the refrigerator do not forget to cover them otherwise condensation will build up and it also affects performance and consumption. If you want to decide when and how much to save on your bill, check the Tempo always win Tariff and enjoy a guaranteed discount indefinitely.

Efficient use of water in the garden

Whenever possible, try to irrigate first thing in the morning to prevent the water from evaporating too much and this way you will not burn the plants or encourage fungi and it is also when plants need water the most. Use efficient irrigation systems, such as drip systems and on rainy days make the most of the rainwater to water your plants.

Operate you air conditioning unit efficiently this summer

Only cool the rooms that are being used and close all the doors to any rooms not in use in order to concentrate the cool air in the areas being used. It is advisable to keep the air conditioning unit out of direct sunlight in the shade and in an area with a natural draft, for example close to a door. Lastly, make sure all your windows are closed to prevent warm air from entering the house.

When you use the oven, cut food into small pieces

In order to cook food more quickly and consume less energy, we recommend cutting food into small pieces when you are going to use the oven, since, the smaller the piece, the less time it will need to cook and therefore the less energy you will use. Try it!

Protect your home from the heat

We recommend closing your blinds in areas of the house that you are not going to be using and use awnings in the areas of the house that you are going to use to prevent direct sunlight from entering your windows and to prevent heat gain. Remember to lower the awnings in the morning to prevent direct sunlight entering the windows and close the awnings during the evening when the temperatures drop. Also remember to switch off lights and electrical appliances throughout most of the day to keep your home cooler.

Use fans when using air conditioning

Fans use very little energy and they are cheap to run, they do not drop the temperature but they are very effective in air circulation and they even enable you to increase the air conditioning set temperature or even switch the unit off. This summer we recommend using oscillating fans for greater circulation.

Prepare your home for summer

Wood furniture helps regulate humidity levels in rooms. If you have carpets, we recommend removing them during the summer months and avoid using heavy or thick fabrics, wools, fur and leather, instead choose natural materials such as linen or cotton. In terms of colour, choose light colours for your furniture, draperies or curtains, as a light colour absorbs less heat and reflects the sun rays.

Clean or replace the filters in your appliances

Extractor hoods, humidifiers, vacuum cleaners, etc. Dirty filters reduce the efficiency of your appliances and make them work harder for a longer time. Cleaning the filters and keeping them dust-free will help reduce energy consumption and improve the air quality in your home. Clean or replace your air conditioning filters before the summer months. Clean them at least once a month.

Keep your cooker burners clean

Keeping them clean and in good condition will help to distribute the heat more efficiently, thus requiring less energy expenditure to achieve the desired the thermal output. Also check that the gas flame is blue, this is a sign of correct gas combustion. So, if you prefer to cook with gas and saving money is important to you, Endesa's One Gas Tariff is for you. Find out more here and start saving on your Gas bill now.

Placing your washing machine near to the hot water boiler will help you save energy.

If you have a bi-thermal washing machine, i.e. the hot water intake comes from an external supply, it is advisable to place the washing machine near to the boiler, as the water loses heat as it travels through the pipes.

Defrost frozen foods the night before

Defrost frozen foods at room temperature the night before and you will save time and reduce your oven’s energy consumption. Ideally you should plan ahead and defrost frozen foods in the refrigerator, so you make use of the cold temperature and reduce your refrigerator’s energy consumption.

Control hot water consumption while you shower

A shower consumes about four times less water and energy than a bath. The ideal temperature for showering and bathing is between 30 °C and 35 °C. Lower the temperature of the water provided by the boiler to within this range and be more efficient.

Consider the energy labelling on appliances

For example: noise, drying and washing efficiency, the normal life cycle, etc. There are 7 classes of efficiency identified by a colour code and letters ranging from green and the letter A+++ for the most efficient equipment, to red and the letter D for less efficient equipment.

How to do your clothes washing in a way that is more environmentally friendly and more economical

Almost 90% of the electricity consumed is for heating water. Preferably use wash cycles at 30 °C or 40 °C and avoid 90 °C. It is also preferable to use the amount of detergent recommended by the manufacturer.

Control the use of routers, modems and WIFI repeaters

Most Spanish homes have one of these devices to connect to the internet. Although they are not large energy consumers, they are often left on 24 hours a day. It is advisable to use a timer to turn them off at night and while we are away from home, this will mean that we can achieve energy savings of around € 6 per year.

Save while using the oven

When cooking with the oven, avoid opening it while it is on, because each time you open the door, you lose 20 per cent of the accumulated energy. Turning off the oven 5 to 10 minutes before finishing cooking is also recommended as this takes advantage of any residual heat and saves energy. The food will be cooked with the heat from the oven.

Double insulation

Double glazing cuts heat loss almost by half compared with normal glass. Small insulation improvements can lead to energy and economic savings of up to 30% in heating and/or air conditioning.

The refrigerator, an essential electrical appliance

Specifically, 19% of your electricity bill is for your refrigerator. Place the refrigerator in a suitable place where it does not get much sun, defrost it regularly to prevent layers of ice forming that prevent it from working properly and maintain the thermostat at 5 degrees for the refrigerator and -18 for the freezer.

Seal roller blind boxes

We can seal and insulate shutter roller boxes by inserting panels of cork, polypropylene, polyurethane foam or any other insulating material and pasting it to the walls. This will prevent heat loss and cold air infiltrations from outside (and vice versa in summer).

How can you save while cooking?

Use residual heat by switching your hob off 5 minutes before you remove the recipient and choose a slightly larger recipient than the cooking area and with a heat diffusing base (except for induction hobs). You will use 20% less energy while you cook.

Start saving now by choosing the best appliance

In order to lower your electricity bill, choose high energy efficiency electrical appliances (class A, A+, A++ Y A+++). A class A+++ refrigerator consumes up to 80% less energy than a class D one.

Using more efficient LED lightbulbs enables energy savings of up to 80%

Given that these use 80% less energy and last 8 or even 50 times longer in the case of LED lamps.

Use the dishwasher

Washing the dishes in hot water uses 40% more energy than by using the dish washer. If you need a new one, buy a bi-thermal one.

Optimise your hair dryer use

Leave them damp while you iron them and you will use 20% less energy during the drying process.

Set your air conditioning unit at an ideal temperature

Bear in mind that raising the thermostat setting by one degree in winter (or reducing it by one degree in summer) can increase energy consumption by around 7%.

During the summer months, you should lower the temperature of your refrigerator

The outside temperature and overloading the refrigerator with cold products make it advisable to lower the thermostat temperature in your refrigerator to keep food fresh.

You save more money using the air conditioning than driving with your windows down.

Switching on the air conditioning increases fuel consumption, but driving with the windows down is much worse.

A laptop consumes only half as much as a desktop computer

Laptop computers have evolved to achieve an electricity consumption between 50% and 85% less than that of a desktop computer.

Kisses transmit electricity?

As well as transmitting energy between lovers, kisses can also transmit static electricity.

You will always save money by reducing your power

Beware. Dropping your contracted power too much could prove to be expensive

The energy we generate when walking is enough to charge a mobile phone

Each of our feet could generate 10 watts of usable energy as we walk.

Unofficial chargers use more power

They contain lower-quality components that slow down the charge and reduce efficiency.

Do appliances on standby mode use more energy than a freezer?

Phantom energy consumption accounts for around €25 per year in every household.

Are gas hobs the most efficient option?

A gas hob uses the least energy and emits the least CO2.

The router is the device that costs the most money in stand-by mode

The most absurd form of wasting energy has to be the "phantom energy consumption”.

Decorative magnets on the fridge door increase its power consumption

This hoax started to spread across Internet in 2010 and since then it has reappeared several times, exploiting the message chains transmitted via WhatsApp and Facebook.

You need to add oil to the water when cooking pasta

This habit is so common that it has almost become a tradition. But why waste olive oil? Because we have always been told that by adding oil we will prevent the pasta from sticking together, making us believe that the water will become oily and our spaghetti will slide gracefully around the pan.

You lose most your body heat through your head

This popular belief is normally accompanied by the customary “put your hat on”, but recent scientific studies have refuted this belief.

Leaving a light on is better than turning it off and then on again

You are just nipping out for 5 minutes. Should you turn the light off or leave it on? In general terms, the answer is that you should always turn the light off.

Changing your vacuum cleaner brushes frequently helps you save

Money, time and calories, as you won’t have to go over the living-room carpet four times to get it reasonably clean. It isn’t a modest appliance.

Turning down the brightness on your tv helps save power

We’re not asking you to go back to black and white, but just to turn it down a bit to avoid reflections on the screen and to reduce your electricity bill.

Covering radiators increases their power consumption

In spite of the fact that the fashion of covering radiators with tailor-made slatted wooden units or marble shelves is now history, we still insist on obstructing the heat outlet.

The bigger the refrigerator, the less power it consumes

Twin-door XXL refrigerators with ice panels are very eye-catching – that is, if there’s space for them in the average Spanish kitchen – but the price we have to pay is a higher electricity bill.

Turning off the oven 5 minutes before the food finishes cooking helps save power.

Our grandmothers used to do it. And not because they had energy calculations at hand, or because they’d seen it on the internet. They just knew, intuitively, that the oven stays at the same temperature for as long as 10 minutes after switching it off.

Leaving the charger plugged in uses almost as much electricity as if we were charging our cellphone

Leaving the charger hanging from the wall socket 24 hours a day, 365 days a year, hardly uses any power.

For heating food, the microwave is more efficient than the oven

But nothing is further from the truth. Are you going to compare one minute of electricity at full power with switching the oven on, and waiting patiently for it to heat up, or putting a pan on the hob and waiting for it to boil?br>

Using short programme settings on your washing machine will help you save

There will only be a relative saving if you hand-wash the dirtiest items beforehand. And in this case… why do you want a washing machine?

Keeping hot food in the fridge uses more power

In the fridge and behind closed doors, there is a constant battle of kW trying to maintain the temperature that we require (in general, 4° C in the cold section and -18° C in the freezer).

The dishes should be rinsed before placing them in the dishwasher

If you spend time rinsing the dishes to the extent that it would be easier to finish the task with a little bit of soap and not place them in the dishwasher, you should know that this is completely pointless as well as tedious.

Electrical appliances do not use power when turned off.

Walk around your house and count the electrical appliances that have been switched on since you bought them: the television, the desktop computer, the landline telephone...

Setting the air conditioner at a lower temperature cools down the house more quickly.

The burst of heat you experience when you get home may lead you into temptation but unfortunately you will not speed up the process.

Tumble dryers use less energy than we think

There is little tradition of using tumble dryers in Spain. Even when there are limits to hanging out the washing or when the homeowners' association forbids displaying underwear or sheets to passers-by, most of the Spanish population prefer to unfold a clothes horse in the bathroom and wait patiently until the clothes dry.

Energy consumption does not depend on the type of electrical appliance we have

It is a case of letters and your annual bill depends directly on the nomenclature of your electrical appliances. A Class G electrical appliance could consume up to three times more than a Class A appliance and it is worthwhile medium-term investment.

Leaving fluorescent lamps on for a short period of time uses less energy than switching them on and off when needed.

This is the doubt we have every time we go out the kitchen. We try to calculate how long it will be before we go back to pick at something from the fridge or to get a glass of water. We end up switching the light off. And this is what you should do. Saving experts have reached the conclusion that these fluorescent lamps should not be left on for any longer than 5 to 10 minutes.

Smartphones barely consume energy

You only have to cast your mind back to when you used to charge your primitive mobile phone in the past (your battery could last up to 5 days) and how many times do you have to charge your smartphone now?

Insulation barely affects energy efficiency in your home

It is unwise to laugh at your neighbours that use towels to cover the gaps in their doors to prevent heat from escaping or who have invested their savings in double glazing.

Leaving a fan switched on in a closed room cools the atmosphere

The blades of a fan are only able to move the air around, not to cool it or regulate the room temperature. If you leave it on at full speed in the morning, and return home expecting the living-room to be cool, you’ll be in for a disappointment. All in all, it’s only an electric fan.

The brighter the monitor screen setting, the more energy it consumes

Electricity bills have to be paid, even if it is the result of the screen brightness of your laptop or smartphone and brightness is exactly that, the amount of light reflecting off your device.

Closing applications will make your battery last longer

Well, fear not. And both IOS and Android agree with this.

Keeping the freezer empty uses less electricity

If you think that by only keeping an ice tray and a couple of little bags of peas in the freezer you are going to use less energy, you are mistaken.

You uses less energy to boil water if you start with hot water from the tap

Have you not stopped to think about the extra energy you use by heating the water?

Single lever mixer taps can help you save

Single lever mixer taps have one lever to adjust the water flow rate and the temperature which, if used correctly, will enable you to save money.

Time-restriction tariffs enable you to save money on your electricity bill

Now it is worth using high-power consumption electrical appliances such as your washing machine or dishwasher at night or in the morning.

Screen protectors help you save energy

They only protect your eyesight. The screen protector mode is another file that your computer executes and it uses up the same energy as it would without it.

Ironing every day consumes more energy

If the pile of ironing calls out to your every day, do not feel bad. Just stare back and tell it that you are trying to save energy and money.

Old electrical appliances consume more energy

New generation washing machines or dishwashers require less energy to start up and carry out their functions. Eco-labels can help you protect the planet and they also help you save money with each use. An A+++ rating indicates that your electrical appliance consumes between 30% and 60% less energy than one with an A energy rating.

Leaving your computer on permanently uses less energy than switching it off and on again

Leaving it on “just in case” is simply an unnecessary expense if the computer is not being used continuously.

In summer you use less electricity

Depending on the weather conditions of each area, your electricity bill can go sky high during the warmer months

Using high temperature settings on your washing machine will make your electricity bill shoot up

Many people think that clothes come out cleaner at higher temperatures, so they use short programmes at high temperatures. But this theory makes no sense.

You should always preheat your oven when baking

All recipes that involve using this electrical appliance begin with "preheat oven for so long and at a specific temperature while…".

Turning the clock forward or backward an hour represents a considerable saving in energy.

Represents a saving of 5 percent in electricity between November and March

Switching off your heating for a few hours uses up more energy than setting it at a constant temperature

By limiting the temperature at night, you can reduce your annual consumption.

Ceramic hobs use more energy than gas hobs.

Vitro-ceramic hobs use much more energy than gas ones, but induction plates can reduce your electricity bill a little.

It is better to leave lights on than switching them on and off

Switching lights on and off generates an insignificant consumption surge.

Using a high flame will heat food up quicker

Using lids is what speeds up cooking processes the most.

The stand-by mode on electrical appliances barely consumes energy

They are almost unnoticeable lights, but they definitely use electricity.