Sure, this swish Swiss hotel has sweeping views of the snow-dusted Graubünden mountains and cosy yet industrial interiors but those features snowball down the slopes compared to its energy-efficient edge. The guesthouse has 40 rooms, nine family apartments and a restaurant that are all powered by an “ice battery” – a method of energy production that produces no emissions and has a 100 per cent recovery rate of potentially wasted heat. It also has an area for electric car charging and a commitment to seasonal, locally sourced food to bolster its sustainability cred.