Tips for Saving Money

We can give you tips on how to save and care for the environment.

Just follow our tips to make better use of natural resources and enjoy all the comfort offered by energy in the home:


Air conditioning

Air conditioning can account for up to 10% of total energy consumption. Here are some simple tips to reduce consumption:

  • Switch off your air conditioning when there is no one at home or in the office.
  • Fit a thermostat if your air conditioner does not have one, or if it does not report room temperature accurately. For each degree of temperature less, your air conditioning consumes between 4% and 6% more energy.
  • You can save up to 30% on your air conditioning bill by fitting awnings and closing blinds to stop hot air from entering the building, and by insulating walls and roofs properly.
  • In summer, ventilate the building when it is cooler outside than indoors (early morning and at night).
  • Fit the air conditioning thermostat as far as possible from heat sources (sunlight, lamps, etc.) and try not to set it below 25ºC.
  • Switching on the air-conditioning for a few minutes is enough to reach a suitable temperature.
  • Keeping the filters on your air-conditioning clean helps to save energy and prolong the service life of your device.
  • If you use air-conditioning, adjust the temperature according to the conditions outside (22ºC in winter and 24ºC in summer).
  • If you are thinking of buying an air-conditioning system, check that your home is properly insulated.
  • When buying an air-conditioning system, make sure you choose one with the right capacity.
  • Avoid using air-conditioning in areas of your home that are not used on a regular basis.
  • Adjust the air-conditioning in your home depending on the type of clothing you wear at different times of year.



Lighting can account for up to 9% of your energy consumption. Here are some simple tips to reduce consumption:

  • Install several switches throughout your home and office, so you only switch on the lights you need
  • Change traditional light bulbs for low-energy bulbs as the need arises (for example, when replacing a blown bulb). They give you an energy saving of up to 80% over their lifespan and last 8 times as long.
  • Whenever possible, make the most use of natural light. need to. Do not leave lights on in rooms that you are not using. Only turn on lights when you really
  • Halogen lamps provide more light than conventional light bulbs with the same energy consumption. They also last 2 to 3 times as long.
  • By using fluorescent tubes in rooms requiring more light for longer periods you can cut energy use by up to 80%. These tubes last between 8 and 10 times longer than conventional incandescent light bulbs. Leave them on if they are going to be off for less than 20 minutes.
  • If you have outdoor lighting in your garden, control it using a timer or twilight switch.
  • Use light colours on walls and ceilings to make better use of natural sunlight and reduce the amount of artificial light needed.
  • Use extensions with switches and turn off electrical appliances when not in use.
  • Focused lighting helps to save energy and create more comfortable surroundings.
  • Save energy with presence detection devices in garages and common areas so that lights turn on automatically.
  • Fluorescent bulbs consume 30% less energy than incandescent ones.
  • Just 5% of the power consumed by incandescent light-bulbs is transformed into light. The remaining 95% is transformed into heat.
  • Lights that turn on automatically with presence detectors are practical and save energy.
  • Install black-out shades or blinds on windows that receive direct sunlight. Minimise the amount of solar radiation that comes in.
  • Avoid using opaque lampshades that require stronger light bulbs.



  • The kitchen can account for up to 11% of your energy consumption. Here are some simple tips to reduce consumption:
  • Make use of residual heat by switching off the cooker hob 5 minutes before removing the saucepan or frying pan.
    Use pressure cookers whenever possible. They use less energy and save a lot of time.
  • Induction plates consume 20% less electricity than conventional vitroceramic cookers.
  • Use saucepans with a thick bottom on electric cookers to ensure temperatures are even.
  • Turn off electrical appliances when not in use because they consume energy and give off heat.
  • Optimise the use of appliances, making use of heat or cold for more than one task.


Fridge and Freezer

Adjust the temperature of your fridge or freezer according to the manufacturer's instructions (every degree of cold increases energy consumption by 5%). Here are some simple tips to reduce consumption:

  • Install these appliances as far as possible away from heat sources (sunlight, oven, radiators, etc.).
  • Do not place hot food in the fridge or freezer. Leave them out to cool, you will save energy.
  • Ensure that doors remain open as seldom as possible and check that they are properly closed.
  • Ensure that the back of these appliances is kept clean and well-ventilated.
  • When purchasing a fridge, choose the most efficient and environmentally-friendly model, class A+ or A++, which will allow you to save up to 70% on your electricity bill.
  • Remove the frost that builds up in these appliances when it becomes around 3 mm thick. This will enable energy savings of up to 30%.
  • Save energy by adjusting the thermostat on your refrigerator to 5ºC and -18ºC in the case of your freezer.
  • Check that the rubber seals on the doors of your refrigerator are in good condition and that they close properly, to prevent cold air from leaking out.
  • Clean the back of the fridge once a year and ensure that there is a distance of about 5 cm between the back grille and the wall.
  • Don’t fill up your fridge too much, so that air can circulate freely between the foods.
  • Open the door of the fridge as little as possible and close it quickly to avoid wasting energy.
  • Defrost foods a little before cooking them.
  • Check the sealing on your fridge or freezer on a regular basis to avoid cold losses.
  • In case of prolonged absences, the appliance should be emptied and unplugged.



Heating can account for up to 41% of your energy consumption. Here are some simple tips to reduce consumption:

  • Install thermostats to regulate the temperature. For each extra degree of temperature, your heating consumes between 5 and 7% more energy. A room temperature of 20º is ideal.
  • Raise the blinds during the day. The sun provides light and heating free of charge. In the evening, lower the blinds. This will cut down on heat loss.
  • If you change the windows in your house, make sure the new ones are double glazed. They will save you around 15% in heating costs.
  • Fitting seals or weather strips to windows and doors cuts heat loss by 10%. Remember that a well-insulated house can cut your heating bill by up to 30%. You only need 10 minutes to air a room completely.
    • If you have gas heating: Condensation boilers use up to 35% less energy than conventional boilers.
    • Keeping an individual boiler properly maintained will save up to 15% on your energy bill.
  • By installing good insulation on doors and windows, you will enhance the comfort of your home and bring down your energy bills.
  • A temperature of between 20ºC and 22ºC is enough to ensure comfort. For every degree over that, heating consumption increases by 6-8ºC.
  • Thermostatic valves on radiators and programmable thermostats save up to 13% energy consumption.
  • Drain your radiators at the start of the winter because if there is air trapped inside them it is harder for the heat to get around.

  • Do you live in a smart home? Turn your heating on or off and adjust the temperature from any location.
  • A quarter of the water in the thermal boiler should be drained off every 3 months, using the valve on the bottom of the tank. This is to prevent the build-up of material sediment.
  • A fireplace equipped with a heat exchanger system is safer on account of being closed. It is also much more efficient than an open fireplace as it consumes less firewood and warms up the home better.


Hot water

Hot water can use as much as 26% of your energy consumption. Here are some simple tips to reduce consumption:

  • Having a shower instead of a bath saves about 75% of energy and water.
  • If you set the heater above 60ºC, you will reduce its lifespan and waste energy.
  • Dripping taps can waste 100 litres of water a month.
  • Turning off the tap when brushing your teeth can save 15 to 20 litres of water.
  • Using storage immersion heaters, you can cut your hot-water bill by up to 50%.
  • Install taps that allow for temperature adjustment using a thermostat. It’s an easy way to save without compromising comfort.
  • Install low-consumption showers, mixer taps and tap flow reducers. This will enable savings of up to 50%.
  • When you have a shower, does the water go from cold to warm at intervals? Avoid unnecessary expense and annoyance by using a mixing valve.
  • Keeping your boiler at a temperature of about 36ºC allows to save on hot water.
  • Save on hot water by adjusting the boiler to a temperature of about 36ºC.
  • A temperature of between 30ºC and 35ºC is enough to ensure a comfortable bath or shower.
  • Washing dishes with hot water means using 40% more energy than the dishwasher.
  • Installing low-wattage showers, mixing taps and flow reducers on taps allows to reduce consumption by up to 50%.



  • Conventional Oven: Try not to open the oven unnecessarily. Every time you open the oven you lose up to 20% of its heat.
  • Microwave ovens use between 60 and 70% less energy than conventional ovens.
  • Use a microwave oven or a vitroceramic cooker. Energy consumption will be lower if you use the oven at the same time.
  • There is no need to pre-heat the oven if the dish takes over an hour to cook. This will help save energy.
  • Turn off the oven shortly before the dish is ready. The residual heat will be enough to finish it.
  • On vitroceramic or induction hobs, ensuring that the diameter of the pan is larger than the convection area and that the bottom is heat-diffusing allows to save 20%.
  • Keeping the oven clean enables better heat reflection, thereby lowering energy consumption.
  • Keep the inside of the appliance clean.
  • If you are going to place more than one rack in the oven, remember to leave space between them so that the heat can circulate between them.
  • Use suitable stacking devices to heat two plates in the microwave at the same time.


Washing machine/ tumble dryer

  • Whenever possible, use warm temperature wash programmes. Remember that 90% of the energy used by washing machines is for heating the water. A wash at 30ºC instead of 60ºC cuts energy use by half.
  • Fill your washing machine (or dryer) to its maximum capacity. This will save water, detergent and energy. Your will also prolong the lifespan of your appliance.
  • If you buy a new washing machine, choose one with a fast spin. Your clothes will be well wrung and your tumble dryer will have less work to do. You should also choose an environmentally-friendly energy-efficient class A model, as this saves over 45% more electricity than class D models, for example. A washing-machine with a spin speed of 1,200 instead of 700 will cut the amount of electricity your tumble dryer uses by 20%.
  • Use low-temperature programmes on your washing-machine, unless the clothes are very dirty. This will enable energy-savings.
  • Prevent your cotton T-shirts from shrinking and save energy at the same time by setting your washing machine to 30ºC.
  • Save energy by hanging out your clothes to dry instead of using a dryer.
  • In summertime, hang your clothes outside in the sun so that they can dry more quickly. Save energy by avoiding the use of the dryer.
  • Using a spin speed of 1200 rather than 700 on your washing machine will reduce dryer consumption by 20%.
  • Machines with half-load programmes reduce consumption significantly.
  • Always keep filters clean.
  • Plan to wash clothes at night, if you have two or three different rates for your electricity consumption.
  • Dry light and heavy materials separately. This will mean that all your clothing will be dry at the same time.



Washing-up by hand with hot water uses 40% more energy than a dishwasher. Here are some simple tips to reduce consumption:

  • Fill your dishwasher to its maximum capacity and choose the most suitable programme.
  • If it is not full, you can do a pre-wash with cold water to make the later main wash easier.
  • Position the utensils in the dishwasher carefully as water needs to flow between them freely.
  • Use the recommended salt and rinse aid levels.
  • If you are going to buy a dishwasher, choose an environmentally-friendly and efficient class A model that can save you up to 45% energy compared with a class D one.
  • Use scale removers and clean the filter of your dishwasher regularly to save energy.
  • Washing your dishes with hot water consumes 40% more energy than putting them in the dishwasher.
  • Use programmes with moderate temperatures when using your washing machine. 90% of the energy goes towards heating up the water.
  • Washing at 30ºC instead of at 60ºC will halve your energy costs.
  • Good maintenance improves the energy performance of your appliances: clean the filter and top up on brightener and salt.
  • Always keep filters clean.
  • Plan to wash dishes at night, if you have two or three different rates for your electricity consumption.


Electronic devices

  • To save energy, unplug televisions and other devices when not in use.
  • Use appliances with Energy Star certification.
  • Remove your phone charger from the socket when your device is charged. Otherwise it will go on consuming energy.
  • The monitor consumes the most energy in your computer. If the computer is completing a task for which your presence is not required, switch off the monitor.



  • If you are going out for longer than 30 minutes, plug out your TV and appliances to save energy.
  • Did you know that when you leave your TV and electronic devices on standby, they consume 15% energy?
  • LCD screens save 37% energy when left on and 40% on standby.