Climate change and growing shortages of resources are the big challenges of our time. Following the areas of transport and power generation, building technology is the largest consumer of energy. Heating, cooling and lighting in residential and office buildings make up approximately 40 % of the energy consumed in the industrial nations – a share that leaves a lot of scope for energy optimization. ABB’s building automation solution enables energy savings in the double-figure percentage range in hotels – a significant contribution to climate protection and to reduce the operational costs of hotels.