Did you know that buildings account for around 45 percent of energy consumption in Switzerland? In total, our properties “devour” around 100,000,000,000 kilowatt hours of energy. By way of comparison, one kilowatt hour can keep an energy-saving lamp burning for around 90 hours. Buildings that are a bit outdated and in need of energy refurbishment are particularly high consumers. They are not only a burden on the climate and in terms of energy use, but also impact the owner’s wallet due to the increase in energy prices. More than ever, therefore, the question arises as to how the energy consumption of a house or apartment can be sustainably reduced.
