The Valsana Hotel & Apartments in Arosa, Switzerland is bordering the forest, flanked by the lake and surrounded by beautiful panoramic views of the mountains. Sustainability was given a central role for this new build from 2017 as it uses the latest technological innovations to minimise the hotel’s impact on the environment - the hotel will be powered using an “ice battery”, no less! The complex is heated using geothermal probes and by capturing and reusing waste heat. This autonomous energy concept deserves special attention:
Massive Co2 savings
Complete recovery of waste heat
Heat recovery systems are very efficient as temperatures as low as 5 C can be used to melt the ice in the “battery”
Regeneration of the geothermal probes through waste heat during summer time
Latent ice storage with 850 m³ volume 2'200 m earth probes
20 boreholes in approx. 100 m depth
Waste heat recovered from neighbouring supermarket approx. 150’000 kWh/year
