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efficiency_now:immediate_measures [2022/04/22 14:27] – [Fuel-efficient mobility] yaling.hsiao@passiv.deefficiency_now:immediate_measures [2022/08/22 14:09] (current) – [Showerhead] yaling.hsiao@passiv.de
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 ==== Showerhead ==== ==== Showerhead ====
  
-The energy demand for hot water makes up around 10% of total household consumption, which is often wasted. Therefore, it is worth looking into how hot water can be saved, such as by using a water-saving showerhead. The article [[https://passipedia.de/technik/duschkoepfe|water-saving - showerhead (in German)]] gives further information on this - the equipment is easy to obtain and replace. +{{ ::picopen:duschkopf.png?100|}} 
 +The energy demand for hot water makes up around 10% of total household consumption, which is often wasted. Therefore, it is worth looking into how hot water can be saved, such as by using a water-saving showerhead. The article [[efficiency_now:immediate_measures:technology:showerhead|shower head]] gives further information on this - the equipment is easy to obtain and replace. 
 ==== Insulation of radiator niches ==== ==== Insulation of radiator niches ====
  
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 Carefully planned and executed thermal protection measures, preferably on the outside of existing buildings, are significantly more effective and have a number of advantages: Carefully planned and executed thermal protection measures, preferably on the outside of existing buildings, are significantly more effective and have a number of advantages:
 +
 +  * The heat losses are reduced, which leads to a reduction in the heat output as well as the annual consumption 
   * At the same time, in winter the temperatures of the interior surfaces of the building assembly are increased. This provides two advantages: thermal comfort is improved, and the tendency towards damp surfaces is greatly decreased.   * At the same time, in winter the temperatures of the interior surfaces of the building assembly are increased. This provides two advantages: thermal comfort is improved, and the tendency towards damp surfaces is greatly decreased.
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   * If an old heating system based on gas or fuel oil exists, then very little of this fuel will be consumed right away   * If an old heating system based on gas or fuel oil exists, then very little of this fuel will be consumed right away
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   * Due to the reduced heating load, the forward flow temperature necessary for the heating system is also reduced. This raises the efficiency of the heating system - which is particularly significant in the case of heat pump based heating systems; here the efficiency referred to as the annual COP depends greatly on the temperature that is required.   * Due to the reduced heating load, the forward flow temperature necessary for the heating system is also reduced. This raises the efficiency of the heating system - which is particularly significant in the case of heat pump based heating systems; here the efficiency referred to as the annual COP depends greatly on the temperature that is required.
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   * If a new heating system is installed, then this can be smaller (and therefore more cost-effective) due to the lower heating load. This effect is particularly pronounced in the case of heat pumps.   * If a new heating system is installed, then this can be smaller (and therefore more cost-effective) due to the lower heating load. This effect is particularly pronounced in the case of heat pumps.
 +  * If energy for space heating becomes really scarce or extremely expensive, then the ability to adopt a more energy-conserving behaviour is even considerably improved with a better level of thermal protection. And, in the worst case, even without any heating it stays warm for longer, and in case of prolonged periods without energy it also won't be so excessively cold (on account of the internal heat gains). Here is a link about the basic principles in this regard: [[https://passipedia.de/baulich/waermeschutz_durch_innendaemmung|implementing thermal protection correctly(German article)]].

  
-  * If energy for space heating becomes really scarce or extremely expensivethen the ability to adopt a more energy-conserving behaviour is even considerably improved with a better level of thermal protection. And, in the worst case, even without any heating it stays warm for longerand in case of prolonged periods without energy it also won't be so excessively cold (on account of the internal heat gains). Here is a link about the basic principles in this regard: implementing thermal protection correctly.
+==== Saving electricity==== 
 +Frequently, the focus is not put on this aspect, although this is where considerable cost savings can be achieved on account of the high electricity prices. Appliances with a much better level of efficiency are available on the market; whenever first-time acquisition is already necessary in any case, it is usually especially worthwhile to choose an appliance that is more energy efficienteven though it might necessitate slightly higher investment
  
-==== Saving electricity==== +A whole range of further measures are available for reducing the electricity demand - this will have a considerably positive impact with regard to climate protection and consumption of fossil fuels, as fossil-based power plants can often be shut down if less electricity is consumed.  
-Frequently, the focus is not put on this aspect, although this is where considerable cost savings can be achieved on account of the high electricity prices. Appliances with a much better level of efficiency are available on the market; whenever first-time acquisition is already necessary in any case, it is usually especially worthwhile to choose an appliance that is more energy efficient, even though it might necessitate slightly higher investment. A whole range of further measures are available for reducing the electricity demand - this will have a considerably positive impact with regard to climate protection and consumption of fossil fuels, as fossil-based power plants can often be shut down if less electricity is consumed.  +Initial approaches can already be found in this Passipedia article: [[https://passipedia.de/grundlagen/nachhaltige_energieversorgung_mit_passivhaeusern/moeglichkeiten_zur_weiteren_optimierung_von_strombedarf_huelle_und_haustechnik|Optimisation of the electricity demand]].
-Initial approaches can already be found in this Passipedia article: Optimisation of the electricity demand.+
  
  
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   * Remove roof racks and roof fittings when not in use  (efficiency due to attentiveness ; such fittings increase flow resistance considerably, leading to higher fuel consumption and costs)   * Remove roof racks and roof fittings when not in use  (efficiency due to attentiveness ; such fittings increase flow resistance considerably, leading to higher fuel consumption and costs)
   * Avoid carrying excess loads (attentiveness: every kilogram has to be accelerated and the kinetic energy absorbed in this way is later "out-braked"​ (meaning it is converted into environmental heat which can no longer be utilised)   * Avoid carrying excess loads (attentiveness: every kilogram has to be accelerated and the kinetic energy absorbed in this way is later "out-braked"​ (meaning it is converted into environmental heat which can no longer be utilised)
-  * Regular maintenance of the vehicle (efficiency due to careful operation) **Lightweight electric cars** may contribute quite considerably (40 %!) to a reduction in emissions, based on the DLR study linked here.+  * Regular maintenance of the vehicle (efficiency due to careful operation) **Lightweight electric cars** may contribute quite considerably (40 %!) to a reduction in emissions, based on the DLR study linked [[https://www.dlr.de/content/de/artikel/news/2022/01/20220324_weniger-emissionen-durch-elektrische-leichtfahrzeuge.html|here.]]
  
  
efficiency_now/immediate_measures.1650630431.txt.gz · Last modified: 2022/04/22 14:27 by yaling.hsiao@passiv.de