During the winter, the ground source heat exchangers with heat pumps take the warmth for heating from the ground. In the summer, excess heat can be fed back into the exchanger pipes. That creates a heat reservoir for all seasons. The heat pumps are powered by solar panels, making the system self-sufficient when it comes to energy production.
This sophisticated energy concept provides for a virtually maintenance-free system with zero operating costs, and today the Bildungscampus Seestadt is an almost energy-autonomous building with the help of solar, wind and geothermal energy as well as storage mass.
By using Holcim’s low-carbon cement for concrete production, the project also reduced CO2 emissions by 32% compared to CEM I that is still used in some parts of the world.
Like in this sustainable school in Vienna, smart design and the use of Holcim’s range of low-carbon cement, ECOPlanet, and low-carbon concrete, ECOPact, for thermal concrete activation can play a major role in the decarbonization of cities all around the world.
Energy efficient, environmentally friendly and affordable, it can effectively accelerate the phaseout of fossil fuels in the built environment, reduce household energy costs and contribute to housing affordability.