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Energy Services Programs
Project Profile:
Brooklyn Municipal Building
Since 1955, the 15-story, 464,000-square-foot
Brooklyn Municipal Building and adjacent four-story Borough Hall have
provided a diverse array of municipal services for Kings County
residents.
When a single chiller plant providing cooling to
the two structures since 1972 showed signs of
becoming too costly to maintain and operate, the Department of Citywide
Administrative Services turned to the Power Authority for assistance in
upgrading the equipment.
 NYPA contractors installed two 800-ton and one
400-ton high-efficiency electric centrifugal chillers, 2,000-ton cooling
towers with automatic filtration systems and pumping systems to satisfy
cooling loads for both buildings.
The project also
includes a state-of-the-art building energy management system. Data fed
into a new central monitoring computer provides real-time information on
the status of all chillers, pumps, variable-frequency drives and
auxiliary systems. Ancillary equipment includes a refrigerant
leak-detection system and automated water controls integrated into the
municipal building’s ventilation system.
The upgrades have resulted in energy savings of
about $53,000 each year. The county realizes additional savings from
reduced maintenance costs, and the new chillers utilize environmentally
friendly, non-ozone-depleting refrigerants.
NYPA, which managed and provided upfront funding
of $6 million for the six-month project, will recover its costs from the
energy savings. The installation is one of about 267 energy services
projects NYPA has completed at Kings County public
schools, hospitals and other public facilities—including the Brooklyn
Central Library, Brooklyn Museum, Woodhull Hospital, Kingsborough
Community and New York City Technical College—with annual energy savings
of more than $11 million.
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