23/05/2022

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Driving design quality

How energy-efficient are German houses?

Amongst the G20 and EU-28 countries in the world, Germany remains the country with the highest level of energy efficiency. Energy efficiency is the focus on the reduction of the amount of energy required to provide products and services which can also make the effect of air pollution to be reduced to its barest minimum. Energy-efficient building design involves constructing or upgrading buildings that can get the most work out of the energy that is supplied to them by taking steps to reduce energy loss such as decreasing the loss of heat through the building envelope.

What makes German house energy efficient are design, insulation, heating, cooling, and appliances such as energy-efficient washing machines, dryers, and hot water systems. These have reduced the level of electricity bill and consumption in the country. Energy in Germany is sourced predominantly by fossil fuels, followed by wind, nuclear power, solar, biomass (wood and biofuels) and hydro.

Germany took the top spot because of its mandatory codes requiring both residential and commercial buildings to reduce energy consumption by 20 per cent, putting them at 2008 levels by 2020. According to a recent study put out by the American Council For An Energy-Efficient Economy, Germany was the best country overall for energy efficiency, scoring high in multiple categories for a total score of 65 points out of 100 on their study.

If you are looking for a loan to get a house or a mobile bank to use while in Germany, you can read about Ferratum money and other mobile banks on reviewsbird.de. From the experience of other people resident in Germany that have used the different mobile banks, you will be able to find the best mobile bank for you. The following are features of energy-efficient houses in Germany

Window Placement

In the southern hemisphere, the living area should face north and have the largest window area. Conversely the northern hemisphere, living areas should face south. For clarity, in this article, we will presume the location of the energy-efficient house is in the southern hemisphere. Windows should be shaded in summer but be free of shading in winter. The shading type can be adjustable or permanent – such as eaves, awnings and shutters.

North Walls

North facing glass should be clear. Avoid tinted glass in temperate climates. Fixed shading should have a specifically calculated overhang. When calculating the area of glazing to the north it is wise to restrict it to no more than 35% of the effective floor area in temperate climates. In colder or warmer climates the ratio is adjusted accordingly. For energy-efficient housework well in all seasons, frames with deciduous plants or creepers, or shutters and awnings which are adjustable, are preferable to a system of permanent shading. It is important to allow the winter sun to enter the energy-efficient house, therefore permanent shading should be avoided.

East-West Walls

To restrict the sun access, windows in the east and west walls should be minimised – or shaded to prevent the sun from entering. Shade structures are not useful for the east and west walls. The area of glazing should be restricted to less than 5% of the total floor area for both of these walls combined, with the western wall to account for no more than 2% of the total floor area. Having possessed all the features.