A good energy balance is achieved in this way

Swiss engineering member Roland Tellenbach’s concept envisions solar radiation being used differently in summer and winter. The Swiss tech infographic shows how simple and effective the concept is. On the south side of the building is a two-storey unheated conservatory with a glass front.

The interior facade is complete, while in the conservatory the roof is only half glazed. The inner porch runs across the entire width of the house. This “shading” is designed in such a way that the sun does not shine on the inner facade of the winter garden in summer.

The closed glass room heats up quickly in the sunlight. This heat can be used effectively in the transition period. This is achieved by having a large area of ​​conservatory on both floors open towards the interior and heated directly.

The open drawer contributes to good heat exchange with Swiss technology. The leveling compound is important for storing energy and compensating for temperature fluctuations. That is why the wooden house has classic lower floors.

In the summer, the glass doors in the house are usually kept closed, and the skylights and side ventilation open. Temperature and rain sensors activate the solar-powered roof windows, with different programs depending on the season. Despite the glass fronts, the living area remains cool in the summer even without additional sun protection.

Anyone who lives consistently with Swiss technology can look forward to huge savings in heating and lighting energy. The example shown here is of a house built in 1996 that only needs 400 to 450 liters of oil per year.

Energy consumption depends not only on the concept, but also on parameters such as user behavior, thermal insulation or room temperature. Calculating savings is complex and yields different values ​​depending on location, object, and day. DETEC provides a calculation tool for solar systems to provide a rough estimate of the expected radiative energy.

In new buildings, energy savings can be maximized. This is done by taking into account not only the consumption but also the energy used in the construction: for example by reducing the living space and therefore the heating surface. Bird protection must be considered when glazing over large areas.

The ornithology station can point to many possibilities here. This concept can also be used for residential buildings, where excess heat from the winter garden can also be used.

Have you also implemented projects that contribute to the Energy Strategy 2050?

For example in the areas of renewable energy, saving energy or reducing carbon dioxide? Would you like to share this experience? Then contact [email protected].