Cham Group has successfully constructed a carbon-neutral apartment complex, Papieri Cham, located on the shores of Lake Zug in Switzerland. The developer took a unique approach by limiting the energy used by the complex instead of calculating how much energy it would need. This strategy aimed to achieve carbon neutrality in response to global goals of zero carbon emissions in the coming decades.
The construction of the building utilized wood-concrete composites and recycled concrete wherever possible. Short transport routes were employed to minimize carbon emissions during construction, and Swiss construction materials were prioritized. The project’s primary focus is on reducing Switzerland’s annual energy consumption per capita and providing 50% of its energy needs through photovoltaic batteries and 40% through a hydroelectric plant on the nearby Lorze River.
The hydroelectric plant is being upgraded to improve efficiency, and fish and beaver ladders have been integrated into the project to support the environmental ecosystem. The remaining energy demand is met by the grid with additional carbon-cutting measures. The heating and cooling needs of residents are addressed through a natural system that uses geothermal energy to heat the building in winter and cool it in summer.
Papieri Cham sets an example for future construction projects striving for carbon neutrality. It demonstrates that with careful planning and innovative energy systems, it is possible to create sustainable and environmentally friendly living spaces.
