27/10/2026
At 2,883 meters in the Swiss Alps, the Monte Rosa Hut has no power grid, no public water supply and no road, yet it comfortably shelters up to 120 guests and generates more than 90 percent of its own energy. This video follows a hiking crew on the multi-hour glacier trek to the hut to see how Siemens building technology keeps this remote smart building running, even when it is buried in snow and unreachable for weeks.
The journey starts with Dr. Thomas Exner, an internationally certified mountain guide and meteorologist, who explains what makes this high-altitude route so demanding and how quickly the surrounding glaciers are retreating. Once at the hut, Fabian Gerschwiler from Siemens shows how more than 84 square meters of photovoltaic panels and thermal solar collectors supply electricity and hot water, backed up by 14 lithium iron phosphate batteries with a combined capacity of 215 kilowatt hours.
Inside, Siemens Desigo CC serves as the local building management system, giving the on-site hut warden a real-time overview of solar output, battery levels, water and heating systems. Layered on top is Building X, Siemens' open, cloud-based building platform, which lets the team manage the hut remotely through two applications: Operations Manager for alerts and daily tasks, and Energy Manager, which uses weather forecasts and expected guest numbers to predict energy needs.
Kilian Emmenegger, hut warden at the Monte Rosa Hut, describes what this looks like in practice, including a storm that cut power to the valley below while the hut, monitored remotely, kept running without issue.
The video closes with Prof. Dr. Christian Baumgartner, lecturer at the Institute for Tourism and Leisure at the University of Applied Sciences of Grisons, explaining why the Alps are warming roughly twice as fast as the global average, how retreating glaciers affect water supplies for up to 190 million people downstream, and why the hut's forecast-driven, resource-conscious approach could serve as a blueprint for sustainable building beyond the mountains.
For facility managers, building owners, and anyone curious about smart, self-sufficient buildings, this is a real-world look at how remote monitoring and renewable energy can work together in one of the toughest environments on earth.
