The new design system for the refurbishment and construction of offi ces and branches involves an energy section which intervenes in three areas: high energy effi ciency electric lighting, with a system that guarantees constant levels of lighting with the possibility of the partial use of individual lamps; machinery, with high effi ciency systems such as inverter heat pumps, condensing We recognise the need to control and reduce our consumption of environmental resources and the impacts of our activities and our premises on the environment and on climate in general as much as possible.