We are convinced that in every household there is still a lot of energy saving potential hidden. To demonstrate this, we have launched our campaign “Deutschland grünoviert” this year , where we equip 10 households with energy-efficient solutions in the areas of water, lighting, heating and electricity. Today, we would like to present these households somewhat more precisely and to show what they can save and, in addition, calculate the potential for savings in the German average household-that is, at your home. We also show simple solutions on how energy saving becomes a children’s game.
An average German budget has two household members . Such a sample house consumes13985 kWh of gas per year, 2850 kWh ofelectricity per year and 88.4 m3 of water per year. Through simple energy saving measures in the various household areas, this sample budget can save around € 440. We have exhausted an electricity price of 0,28 €/kWh, an average heating cost of 0,08 €/kWh and a water price of 3,50 €/m³. All other calculations are based on these prices and the consumption of an average household, so the individual energy saving potentials can naturally deviate upwards or downwards. How much and what you can save can be found below.
The average greenhouse budget has 3 budget members. It consumes 14052 kWh of gas per year, 4440 kWh of electricity per year and 83.8 m3 of water per year. On an average, each greenhouse budget saved € 443. So we have ambitious goals and we are eager to see if we can achieve them! How much exactly each household can save on energy costs and what characteristics they have, we now present in more detail.
In household 1, three persons live. These reside in an apartment for rent. For this budget we have calculated a savings potential of 490€ per year.
In House 2, four people live. These are also for rent in an apartment. For household 2, we have calculated a saving of € 391 per year.
In household 3, three persons live. They live in their own house for rent. This budget can save€ 627 per year.
In House 4, two persons live. They live in an apartment, but are the owners of this apartment. This household can save 248 € per year. Since there is a central water meter, the water savings of this household will not be quite good for the budget. In addition, this household heats up electrically.This is why electricity costs will drop.
In House 5, two persons live. They live in their own house and are also owners of this house. You can save€ 473 per year.
In House 6, two persons live. These reside in an apartment for rent. For this budget we have calculated a saving of € 81 per year.
In House 7, two people live. These reside in an apartment and are also owner of these. You can save€ 376 per year.
In House 8, four people live. They live in a house and are also owners of the house. This budget can save € 1261 per year.
In House 9, a person lives. This resides in an apartment for rent. You can save 276€ per year.
In household 10 live 5 people. These live in their own house and are also owners of this house. You can save 201 € per year.
The German Average Household
What a German average household per year in the individual areas electricity, water and heating can save and above all how, you can find here.
The savings potential for electricity consumption is enormous. The following two cost-saving measures are particularly effective and simple: first, thereplacement of old light bulbs and halogen lamps against energy-saving LEDs and, secondly, the installation of disconnectable sockets for avoiding standby consumption.
An average household consumes 2850 kWh of electricity per year. Of this electricity consumption, lighting costs account for 11%. By retrofitting to LEDs, 80% of the 11% lighting costs can be saved. Thus you can save in one year 70 € electricity costs. Stand-by consumption also accounts for 11% of the electricity bill. With a plug-in or disconnectable socket strip you can avoid 47% of the standby costs. This energy saving measure thus saves another € 41. By two very simple measures one can save € 11 annually electricity costs.
Replacing old light bulbs with more efficient LEDs is very easy. Here we explain, how the exchange light bulb instead of LED succeeds without problems and on what one should look at the exchange. Socket strips are also attached quickly.Simply switch the power strip between the socket and the electrical equipment.Do not forget to switch off the power outlet after use. If you already know that he does not think of it, he can buy a socket strip, which is programmable and thinks of turning it off automatically. The largest stand-by costs arise in the living room and study room, where you should also install the sockets.
Conclusion Electricity Savings
= LEDs provide € 70 savings per year
= Switchable socket outlets bring € 41 savings per year
What many do not know – who saves water saves on the one hand the water resource, but above all it also saves warm water. And also the energy needed to heat the water. Water can be saved, for example, by the use of water-saving shower heads but also with flow limiters in the kitchen and bathroom. The savings calculated here under water, however, relate only once to the pure water costs, the costs for the water heating are under heating.
In an average two-person household in Germany, 88.4 m3 of water are consumed per year. 24% of this water is consumed by the shower. The shower water consumption can be reduced by 40% thanks to Sparduschköpfe. This saves costs of € 30 per year. Crane water accounts for 13% of water consumption and can be reduced by 54% by means of appropriate flow restrictors. This energy saving measure saves an additional€ 22 per year. In total, the water-saving alternatives can save€ 52 per year on pure water costs.In addition, there are the savings in heating, which are listed in the next section.
Water-saving shower heads are used just like normal shower heads, which makes an exchange child’s play. When buying, you should note, however, that there are Sparduschköpfe, which reduce the consumption to 9 liters and the even with only 6 liters. In our savings calculation, we have emanated from a 9-liter shower head. However, commercially available non-water-saving shower heads consume 15 liters. Flow restrictors are simply screwed in front of the water tap. By this measure one can reduce the water flow from 13 to 6 liters.
Conclusion Water Saving
= Sparduschköpfe bring 30 € water saving per year
= Flow restrictors bring 22 € water-saving per year
The heating is one of the biggest energy eaters in the household. What many do not know, 70% of the domestic energy consumption goes back to the heating. So it makes sense not to leave the heating out without energy saving.Intelligent heating controls achieve the highest energy savings. These systems range from simple radiator thermostats to fully automated Smart Home systems.In our example, we calculate the savings through an intelligent heating control system. As we have seen above, heating costs can also be saved by the use of water-saving shower heads and faucets, as the hot water heating is, for example, very energy-intensive during showering.
A German average household consumes 13985 kWh of gas per year. 82% of this is due to water heating for the heating system. Intelligent heating control systems can save 20% of these heating costs. This saves an average of 183 € per year. The remaining 18% of gas consumption is caused by the heating of hot water, for example, during showering or rinsing. Of these 18%, 47% can be saved by the use of flow restrictors and water-saving shower heads. This makes an extra € 95 a year. Together, both energy saving measures achieve a cost savings of € 278 per year.
Conclusion Save Heating Costs
= Intelligent heating control systems bring € 183 savings per year
= Less water consumption during showers and water tap bring € 95 savings per year
I Can Save That
Whoever implements the above measures in all three areas can save on average € 441 per year. Most of the energy saving measures are done quickly and in a few simple steps, such as changing to LEDs or the use of switchable socket outlets and Sparduschköpfe. A little more time-consuming is the installation of an intelligent heating control system, which results in the highest savings. If the investment in an entire heating control system is too high, of course, can also start with the small things. Socket strips already available from 5 €, flow limiter from 3.50 €, 60 watt replacement LEDs from 9 € and Sparduschköpfe from 20€.
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Biography: Tara Evans, journalist at This is Money
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