St. Paul Chiller Plant
Historic preservation and energy efficiency were the driving forces behind a major construction project on the St. Paul campus of the University of Minnesota. In 2004 and 2005, the University rehabilitated a historic building in order to combine multiple individual chillers found throughout numerous buildings on campus. The renovation of the vacant site allowed for a more efficient source of energy and has upgraded and improved the reliability of the chilled water supply system. With funding from the Minnesota State Legislature, the Central Chiller Plant has replaced aging and inefficient chillers in 16 buildings across the St. Paul campus which has resulted in annual cost savings for the University of Minnesota in steam and maintenance labor just under $1 million, increased energy
efficiency in reducing CO2 by approximately 3,300 metric tons annually, and an overall increase in reliability of the St. Paul chilling systems.
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