The 71-story, 2.2-million-square-foot Pearl River Tower, in the new city of Guangzhou, China, being built for the China National Tobacco Corp., is a “net”-zero-energy building designed by the storied architectural firm of Skidmore, Owings & Merrill (SOM), New York City, scheduled for completion in 2009. The firm has set its sights on redefining one of its bread-and-butter project types, the corporate headquarters, into a model of high-tech sustainability The Pearl River Tower epitomizes the super tall corporate headquarters building of tomorrow as an iconic, high performance structure, that is designed so that it potentially produces as much energy as it consumes. The building’s form guides wind to a pair of openings at its mechanical floors. The winds drive turbines that generate energy for the building’s heating, ventilation and air conditioning systems. The openings also provide structural relief, by allowing wind to pass through the building instead of pressing against it.
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