Use only what you need.
Fox worked for the Durst Organization in the 1990s to design Four Times Square, the western neighbor to One Bryant Park. That building included an experimental fuel cell, which takes up a lot of space and provides only 8% of peak power.
First LEED-Platinum skyscraper By contrast, the new tower -- also a Durst project -- does not dedicate any space to alternative fuels. Indeed, it conserves fuel through equipment. Don Winston, who heads Durst's companywide green engineering, says the project team sized its chillers so that each one performs at maximum efficiency no matter how much cooling the tower needs. Even on a cool day, Winston says, the lower-output pipes waste less energy.
NEXT: Reuse what you can.
