The roofs of the hotel are gradually being waterproofed with white liquid polyurethane membrane or white solid membranes. The effect is to reduce the irradiation effect on the roof and achieve a 5°C cooling effect on the inside of the buildings. Cascade effect on internal employee and guest comfort is appreciable. Variable speed drives have been installed wherever possible but mainly on our pumps, industrial fans, water chillers and compressors. These devices have allowed us to save up to 40% on the energy usage of the aforesaid equipment.
Centralised cold room systems, similar to those systems used in supermarkets, installed in all our kitchens with electronic controllers generating energy savings of above 30% as compared to standard unitary systems. The kitchens are fitted with micro load shedding control systems with thresholds that are assigned for maximum energy consumed by each kitchen. Once these thresholds are reached, the load shedding system kicks in to reduce the consumption without affecting any cooking process.
All refrigeration equipment converted to zero ODP refrigerants. Usage of fossil fuels for the production of domestic hot water is gradually being eliminated and is being replaced by a combination of solar generated hot water and utilisation of high temperature heat recovery on air conditioning chillers. Great care is given to design of hot water and chilled water distribution networks, with special emphasis placed on proper insulation. This not only provides a high level of comfort to our guests but allows very interesting energetic savings.
Room energy management systems are gradually being deployed in the hotel rooms. These systems combine motion detection, door switches and electronics to ensure that lighting and air conditioning are not left in operating mode when a room is unoccupied or when doors are opened. These systems have been proven to save 11% of our overall energy bill wherever they have been deployed. The outdoor lighting is controlled by timers with the majority of light bulbs within our premises being replaced with energy saving Light Emitting Diodes (LED).