Helping the Empire State Building to achieve LEED Gold The owners of the Empire State Building have been putting the final touches on a retrofit energy efficiency program that has made the structure the first pre-built commercial building in New York City to achieve LEED Gold certification for prebuilt buildings. With the retrofitted HVAC system being the largest consumer of energy in the building it was critical to accurately monitor every facet of the system. To crunch the data and optimize system performance, the renovation team selected the Johnson Controls Metasys building management system. But a building management system is only as good as the data it receives. Major upgrades were done to the HVAC system and chiller plant. A key component was to install BTU energy metering that wou

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