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SAN FRANCISCO — A chilled-water system at the University of California, San Francisco (UCSF) recently earned a $757,000 energy efficiency award from PG&E. Designed by San Francisco-based Arup, the system also received the 2013 Higher Education Energy Efficiency and Sustainability Best Practice Award in the HVAC Retrofit category. Constructed between August 2011 and December 2012, the $7.7 million project helped UCSF upgrade its water chilling system to a highly efficient system from its former inefficient absorption chillers.