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Endesa - Electricity, Gas, People

Energy saving tips for your home

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A few small changes every day can lead to greater energy efficiency in your home. There is no doubt that responsible energy consumption contributes towards caring for the environment, but it also enables us to save a great deal of money. This guide will show you a series of practical tips to save energy at home.


In the kitchen

  1. Microwaves. These are much more energy efficient than traditional ovens: By using this small appliance, you will consume between 60 and 70% less energy, providing it is a model with an energy efficiency rating of A.

  2. Oven. When using your oven, try not to open it while in use, as the temperature drops by around 25 to 30 degrees, forcing the oven to use more energy.

  3. If you use a gas or ceramic hob, make full use of the heat by using slightly larger recipients than the ring you are using, so the heat is not wasted.

  4. With your washing machine, use the quick wash cycle and use lukewarm or cold water. Detergents are very efficient now, so the water does not need to be any hotter.

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

  6. Refrigerator. The refrigerator is the electrical appliance that uses most energy in the kitchen. 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.


In the bathroom

  1. Boilers. The hot water boiler accounts for the second biggest portion of your energy consumption in your home: 26% of the total consumption. The most efficient option is an electric heat pump.

  2. Cold water is better. Use cold water whenever possible and rationalise your water consumption. Do not leave the tap running when not needed (for example, while shaving and brushing your teeth).

  3. Showers. Take a shower instead of taking a bath; you will save so much water and energy (one shower uses four times less water and energy than a bath). You can now buy shower heads to help control water usage, which will reduce the amount of energy and water used by half.

  4. Check for dripping taps or leaking shower heads. A dripping tap can waste up to 100 litres of water a month.



  1. Always use natural light when possible.

  2. Replace incandescent bulbs with energy efficient lamps.

  3. If you have children or you tend to leave lights on, it would be a good idea to install a motion sensor system..

  4. Install fluorescent tubes in rooms that need more light and where lights are on for long periods of time, for example, in the kitchen.



  1. The buildings in which we live and work require lots of energy to keep warm in winter and to keep cool in summer. Thermal insulation of these buildings is essential for energy efficiency. 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.

  2. Better insulation on windows and doors can save you between 10% and 25% on your energy bill for heating or air conditioning in your home. You can use simple and cheap solutions to cover slits and to reduce air infiltrations in doors and windows, such as silicone, putty or draught excluder. Insulate shutter drums correctly. Use adhesive strips of plastic transparent material to stick them to frames and windows.



  1. Good insulation in your home will help you keep down your heating costs and keep your home warm during the colder months, together with a good and efficient system that rationalises consumption, such as thermal emitters or radiators.

  2. Do not cover radiators and bear in mind that your energy consumption increases by approximately 7% for every degree that you raise the setting.

  3. Underfloor heating is one of the most efficient heating systems available.


Air conditioning

  1. If you use air conditioning, set the cooling temperature to 25 degrees.

  2. Do dot overuse the air conditioning system, it is not good for your health and for every degree below 25, you will be consuming approximately 8% more energy. By installing suitable awnings and windows and by insulating walls and ceilings, you can save over 30% more energy when using the AC.

  3. If you want to save even more money on your electricity bill, use a ceiling fan instead of the air conditioning system and you will use 98% less energy. Split type air conditioners are more effective, together with wall units and reversible systems that provide hot and cold air.


Electrical appliances

  1. When you finish using electrical appliances, such as sound systems, computers or televisions, switch them off completely. Using the anti-stand by multi-socket adapter can help you switch off all the peripheral circuits and any other electrical appliances in one go and prevent these from coming on during the night, saving up to 40 euros per year.

  2. With regard to computers, the screen has the highest energy consumption (flat screens use less energy than conventional screens). Leaving them on is equivalent to using a 75 watt light bulb. Putting the monitor on stand-by reduces its consumption by 15%. LCD screens consume 37% less energy when working and 40% in stand-by mode.


These practical tips only involve small changes by all the members of your family. If you get used to consuming and acting responsibly at home, you will be more comfortable and use less energy and save much more money throughout the year.

Download the complete Guide to saving energy in PDF format.


More articles at -Endesa’s energy efficiency portal-

Should I choose a gas, ceramic or induction hob?. Should I choose a gas, ceramic or induction hob?
Gas, induction or ceramic? At Twenergy we explain the three types of hobs so you can choose the most efficient one. Read the full article at
A refrigerator with an A rating consumes 30% less energy. A refrigerator with an A rating consumes 30% less energy.
The refrigerator is the electrical appliance that uses most energy. Visit Twenergy and discover how to choose the correct refrigerator and get some tips on how to reduce the energy used by this electrical appliance. Read the full article at
The dishwasher that saves you money. The dishwasher that saves you money.
Studies have proved that dishwashers are generally more cost-effective than washing up by hand. However, there are other small changes you need to take into account if you really want to save.  Read the full article at