efficiency_now:immediate_measures
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
efficiency_now:immediate_measures [2022/03/31 14:08] – yaling.hsiao@passiv.de | efficiency_now:immediate_measures [2022/08/22 14:09] (current) – [Showerhead] yaling.hsiao@passiv.de | ||
---|---|---|---|
Line 12: | Line 12: | ||
==== Showerhead ==== | ==== Showerhead ==== | ||
- | The energy demand for hot water makes up around 10% of total household consumption, | + | {{ :: |
+ | The energy demand for hot water makes up around 10% of total household consumption, | ||
==== Insulation of radiator niches ==== | ==== Insulation of radiator niches ==== | ||
- | Another little-known, | + | Another little-known, |
==== More insulation measures==== | ==== More insulation measures==== | ||
- | Well-planned and executed insulation measures are always efficient. The best place for implementation is on the exterior of the building. Here is a link to some basic information on how [[planning: | + | Well-planned and executed insulation measures are always efficient. The best place for implementation is on the exterior of the building. Here is a link to some basic information on how [[planning: |
+ | |||
+ | 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. | ||
+ | * If an old heating system based on gas or fuel oil exists, then very little of this fuel will be consumed right away | ||
+ | * 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. | ||
+ | * If a new heating system is installed, then this can be smaller | ||
+ | * 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:// | ||
+ | |||
+ | ==== 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 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:// | ||
+ | |||
+ | |||
+ | ==== Fuel-efficient mobility ==== | ||
+ | |||
+ | Here, the most effective measure is fuel efficiency: optimised electric vehicles have an energy demand that is only a quarter, or in some cases just a third, of that of cars with internal combustion engines in the same category. With every new vehicle that is purchased, an electric battery driven car is the better choice, not only in ecological terms, but also with regard to supply security; and we are quite sure that in the long term it will also prove to be the more economical solution, especially when we consider the regularly occurring fossil energy procurement crises. | ||
+ | |||
+ | |||
+ | * New purchases: energy efficient electric car (efficiency) | ||
+ | * Avoid driving unless absolutely necessary (for example, is it possible to hold a video conference instead? Travelling longer distances by train is often more relaxing and even faster. This is a typical sufficiency measure, which often also improves the quality of life.) | ||
+ | * Whenever possible, short distances should be covered by bike or on foot (a typical sufficiency measure with a health-promoting | ||
+ | * Drive at a steady speed – accelerate very little and only gently, remove your foot from the accelerator before stopping (" | ||
+ | * Select | ||
+ | * Use narrow tyres with the right tyre pressure (efficiency due to careful operation) | ||
+ | * Remove roof racks and roof fittings when not in use (efficiency due to attentiveness ; such fittings increase flow resistance considerably, | ||
+ | * Avoid carrying excess loads (attentiveness: | ||
+ | * 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:// | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ |
efficiency_now/immediate_measures.1648728531.txt.gz · Last modified: 2022/03/31 14:08 by yaling.hsiao@passiv.de