Copyright © 2025 Circadia Group Inc. All Rights Reserved.
69kV Substation
Princeton University upgraded its electrical power capacity by building a new 69kV substation in West Windsor, New Jersey. The University needed more capacity and reliable power to support 3M square feet of new buildings planned within the current capital plan.
Steam to Hot Water Conversion
In 2020, Princeton University embarked on an ambitious endeavor to replace their 100-year-old steam distribution system with a low-temperature hot water district system. The conversion to low-temperature hot water includes converting 110+ buildings, 13 miles of EN253 thermal piping, 3000,
Campus Lighting Efficiency Program – Phase 2
As part of a more extensive Energy Conservation Program managed through the Department of Engineering and Campus Energy, Princeton is executing a 3.5-year program to convert 2.5M square feet of building space from legacy lighting technology to LED. Circadia is
Frick Chemistry Laboratory Lighting Upgrade
In 2019 Princeton University engaged the services of Circadia Group to design and oversee the replacement of Frick Chemistry Laboratory lighting and lighting controls. The project, defined by three stages started in June of 2019 and is anticipated to be