Chiller & Cooling Best Practices
Summary
The Cordia Minneapolis district energy system has evolved since it first went online in 1972 to include one main plant and nine satellite plants providing heating and cooling to over 100 buildings. Those buildings are some of the biggest in the state, including the homes of three professional sports teams (U.S. Bank Stadium, Target Field and Target Center), the Minneapolis Convention Center, the Minnesota Star Tribune printing plant and Augsburg University. The steam and hot water system includes 39,000 feet of piping. The chilled water system includes 24,900 feet of piping and has a cooling capacity of 37,550 tons.
The system began with the main plant in central downtown Minneapolis created to serve the IDS Center, then and still the tallest building in the state, as it neared completion. Originally, the system was a partnership between the IDS and Minnegasco (then the name of the state’s natural gas utility) with each owning 50%. Over the years, the system grew as new buildings were constructed downtown and chose to join. The number of plants grew, as well, with eight plants added to provide heating and cooling where needed.
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