Calamos Court, Naperville, Illinois


This is a multi story office building with commercial offices and a data center occupying the entire third floor. This is an all electric cooling and uses mechanical cooling for data center round the clock through out the year.


GEC performed a comprehensive energy efficiency assessment of the building to identify energy cost reduction measures that helped in reducing energy consumption by about 20% and also helped reduce the maintenance cost.


The projects implemented include retro-commissioning of HVAC systems, demand control ventilation, variable speed drives for chilled water pumps, dry-cooler for free cooling of data center in winter, and demand control ventilation.