During summer 2010, the entire Berghotel Muottas Muragl was completely renovated. Particular focus was placed on the aspect of environmental-friendliness, giving rise to the first plus-energy hotel in the Alps. On request the hotel offers free guided tours for groups of at least five persons with a special focus on the new energy concept.
Galeria de mídia
Besides constructing the building according to the principles and requirements of the Swiss ""Minergie"" ecological label, this project went one step further. The surface area of the building was extended from 1,700 sq. metres to 2,700 sq. metres.
Hot water is obtained by means of solar energy produced by the 56 sq. metres of pipe solar collectors installed in the glass window panes in the basement. Sixteen thermal loops with an average length of 200 metres, making 3,200 metres in total, supply the entire building with geothermal energy. In addition, all the necessary electricity is generated by the most efficient photovoltaic system in Switzerland, extending 228 metres along the railway line. Any excess of solar energy is stored in the ground via the thermal loops, thus regenerating the geothermal mass. The recovery of the waste heat from the cooling units, exhaust air and the machine room are further measures to transform the new building into a sustainable and environmentally-friendly enterprise that, taken over the entire year, even produces more energy than it actually needs.
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