Inaugurated in 1999, featuring a bold architectural design, NewYorkCityCenter in Rio de Janeiro is considered a model of intelligent energy use. The architectural project - a wide open area, with a 35-meter-high ceiling and 5,400m² white canvas roof - favors the use of natural light and ventilation, avoiding air conditioning. The development was positioned to allow greater circulation of air, avoiding the accumulation of heat. The covering also prevents the entry of solar radiation, but does not reflect light, illuminating the environment. The mall’s lights are only turned on at the end of the day, by means of sensors. All of these measures represent savings of about 20% in energy costs compared to a traditional shopping center.