Ernst & Young Plaza’s Smart BAS 1
56 | 06.14 | NET ZERO BUILDINGS
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EPA Releases Top Cities with Most Energy Star Buildings Washington—Energy use in commercial buildings accounts for 17% of U.S. greenhouse gas emissions at a cost of more than $100 billion per year. Energy Star certified office buildings cost $0.50 less per sq.ft. to operate than average office buildings, and use nearly two times less energy per square foot than average office buildings. The EPA recently announced the sixth annual list of the top U.S. metropolitan areas with the most Energy Star certified buildings. The cities on this list demonstrate the economic and environmental benefits achieved by facility owners and managers when they apply a proven approach to energy efficiency to their buildings. The Top 10 cities on the list are: Los Angeles; Washington, D.C.; Atlanta; New York; San Francisco; Chicago; Dallas; Denver; Philadelphia; and Houston.
The team projects a cumulative cost savings of $4.1 million by 2020.
The facilities management team at the Ernst & Young Plaza—a 41-story, 915,000-sq.-ft. tower situated in the business district in downtown Los Angeles—worked closely with Siemens and began a wholebuilding assessment that examined how the building operated at all hours and with varying occupancy. Their systemic approach, including conducting ASHRAE Level 1 and 2 energy audits, helped identify and prioritize the systems that needed immediate attention.
The Siemens APOGEE open communication protocol and interoperability enabled integration with the EMS so that both HVAC and lighting consumption could be reduced. Sub-meters were installed throughout the facility and integrated with APOGEE to track energy demand.
“Building automation systems provide the tools to view, analyze and interpret this information, whether it is done locally or in the cloud,” says Larry Weber, general manager, ECC Building Control Systems, Honeywell. Dagley emphasizes that a big game-changer is machine-to-machine (M2M) communication, coupled with sophisticated new tools like cloudbased solutions and applications, which analyze the massive amounts data gathered by sensors and turn it into useful information, help building managers do their jobs better. “Imagine thousands of electrical switches, thermostats, lights, door locks, air-handling units, chillers and other components gathering and sharing data—even solving problems on their own,” says Dagley. Interconnected units of equipment work together to find the most efficient way to heat or cool a facility without human intervention. Machines will diagnose their own need for maintenance, which will be scheduled automatically. Advances in wireless networking technology and standardized communication protocols make it possible to collect data from sensors almost anywhere, any time. 58
MAGNITUDE CHILLER Chilled water systems are often dictated by larger, more complex HVAC applications, which include large office buildings or multibuilding campuses where cooling from a central facility is desired. The Magnitude WME chiller with RapidRestore makes it possible for the chiller to restart 35 seconds after a power failure and reach 80% of fullload in 75 seconds. As
a result of its higher sustainable operating efficiency and reduced maintenance, the Magnitude chiller is 40% more energy efficient than standard equipment, saving more than $2 million over the life of the machine. The chiller line has been tested and International Building Code (IBC) certified for seismic installations. Daikin Applied www.daikinapplied.com CIRCLE 293
Highlighting the Path Toward Net Zero Building Design.