Saving energy in the summer
Use the fridge deliberately
For the summer, use the fridge! Every time you reach the fridge, some energy is lost. The longer you need to search, the more energy is wasted. Keeping things in the fridge saves you money – up to 5 Euros per year. The ordinary refrigerator saves not only money but also 17 kg of CO2 a year. It goes without saying that you should not leave the door open unnecessarily. If you go on vacation for three weeks or more, you should switch off the fridge completely. That saves about 2 euros and 7 kg of CO2.
If the seal is damaged, it is worth – especially in summer – the rapid replacement, so that the cold does not pull out; Anyone who fails to do so spends 10 euros a year unnecessarily and pollutes the environment with 34 kg of CO2. You also save 10 euros a year on energy costs if the refrigerator is regularly defrosted. Not to forget the 34 kg of CO2, which saves the environment in this case.
Do not refrigerate the fridge and freezer too much
Also in summer: 7 ° C in the refrigerator and -18 ° C in the freezer are quite sufficient. If you cool more, you can throw up to 20 euros a year out the window and pollute the environment with 67 kg of superfluous CO2 emissions. For the freezer also applies: The colder it is – for example, in the basement -, the less power it consumes. Every degree of outside temperature costs 6 percent more electricity. If the chest is in an unheated room, the household budget is looking forward to gaining around 15 euros, while nature will be spared over 50 kg of CO2. If possible, do not put the fridge directly next to the stove or dishwasher because it will need more energy to cool it.
New refrigerators should be efficient
Incidentally, the biggest money saved by anyone purchasing a new refrigerator is an A + or A ++ energy-saving device. Laid down to the useful life you pay about 450 euros less. Of course, this only applies if no device is purchased too large. A constantly half-full refrigerator costs unnecessarily money and energy. Two small refrigerators consume about 20 percent more electricity than a large, double-volume appliance. By the way, if you do not use the freezer compartment with the fridge because you already have a separate freezer, you can save up to 30% on electricity.
Refrigerators warm the apartment
By the way, the idea of using the fridge as an air conditioner makes sense. If you want to lower the room temperature by opening the fridge door, you will not only have to pay a high electricity bill and environmental impact, the WWF warns. This measure even achieves the opposite effect. A refrigerator is a heat pump that transports the heat from inside to outside. The more this system – due to an open door – has to work, the more heat the refrigerator emits on its back. And so the fridge becomes a heater. More meaningful and environmentally friendly: bed sheets moistened with cold water hanging in front of the window.
Use air conditioners sparingly
Air conditioning units consume a lot of electricity. When designing the space program, remember to be as effective as possible in order to be able to do without these power guzzlers. If that is not possible, look for more economical alternatives. By the way, a ceiling fan relieves the air conditioning system by about 40 percent. The fact that the fan distributes the cooled air in the room, the air conditioning can run less frequently and be set to a higher temperature. The savings in a 30 square meter room is about 200 euros per year.
Be sure to have the air conditioner serviced regularly. With correctly set and maintained air conditioning systems, you can save up to 20 percent electricity. Instead of using air conditioners and fans that can quickly trigger a summer cold, the WWF recommends powerful jet ventilation in the early morning and late evening hours. By contrast, windows and shutters should always be closed during the day. The heat is locked out and the apartment stays cool.
The outer sunscreen is the most effective method
“Studies show that external shading reduces the sun’s rays by up to 75 percent, an internal protection only by up to 25 percent,” calculates Uwe Bigalke, energy expert of the German Energy Agency. Because when the light passes the disk, parts of its energy in the room transform into heat. “And modern, coated windows then look like a greenhouse: what’s useful in winter annoys in the summer.” External sun protection can be blinds, shutters or awnings, where tenants should always seek the permission of the landlord before any interference in the building or in the appearance.
Inner sun protection such as curtains, blinds or roller blinds should be as bright as possible, blinds are best silver-colored: so they reflect the light best. Juliane Dorn from the Leipzig Consumer Center in Leipzig recommends a combination: “If you are not allowed or do not want to attach anything outside, you can also hang some light fabric panels in front of the window.” Tinted or coated windows can be worthwhile for large south-facing windows. However, they hinder the sunshine even in winter. In case of doubt, Dorn advises to use self-adhesive reflective films: “They can be applied from the inside and hardly affect the view.”
Before the vacation
Holidays for the electricity meter: Before the holiday is started, all electrical appliances (eg electric boiler, refrigerator, TV, video recorder, battery household appliances, coffee maker, antenna amplifier, clock radio) should be turned off. Also important: do without stand-by. Shortly before departure, you should note the meter readings for electricity, gas and water. On return, you can then check how much the meter readings have changed. If the deviations are very strong, it is necessary to locate the invisible consumption points. Do not forget: To avoid odors and mold, you should keep the doors of refrigerators and freezers open.