Heidelberg University is a private, non-profit institution established in Tiffin, Ohio in 1850. Heidelberg enrolls over 1,300 students annually. The 110-acre campus houses 1,110 students in seven residence halls.
Miller Hall Dormitory and the attached
Hoernemann Refectory had a much higher Energy Utilization Index (EUI) rating than other buildings on campus. The buildings, which encompass 66,460 sq. ft., were both served by an end-of-life non-condensing hot water boiler. To keep the building fully operational, equipment replacements needed to be addressed within a tight timeline in the shoulder months, when heating and cooling would not be needed.
Plug Smart replaced the end-of-life boiler with a new high-efficiency hydronic heating hot water boiler plant that significantly reduced the gas consumption as compared to the existing system.
Converted three-way valves to two way valves in dorm rooms for variable flow pumping.
Paired the system with non proprietary, open-front-end BACnet controls, which allow for better set point control, comfort control, smarter heating and cooling, and advanced energy efficiency strategies.
Plug Smart identified and secured $50,600 of utility rebates associated with the project.