Raney House is one of the new student housing buildings that was constructed as part of OSU’s North Residential District Transformation (NRDT) project. It is fully occupied by 456 coed OSU students. Engineering Economics, Inc. (EEI) provided new building Commissioning services for the $370 million NRDT project. OSU needs an ongoing review of the facility’s systems that can eventually be applied to all of the facilities on the NRDT campus.
OSU enlisted EEI to provide Monitoring-Based Commissioning (MBCx) with a Real-Time Energy Management (RTEM) system to monitor the energy and building comfort systems. Currently, there are 1,535 data points being monitored across 128 BACnet devices. EEI worked with the OSU staff to set up data collection at Raney House, which took only two hours once necessary points to track were established. Installation of the OPC server took two days, with one day spent solving network issues and ensuring that devices could be reached without interruption, and another day spent identifying the required data points from each device. After the installation of the OPC server, an additional two days were spent mapping data into BalanceCx and ensuring data quality.
EEI immediately found several energy savings opportunities and benefits to the Raney facility including identifying heating control valves that were leaking and wasting energy; simultaneous heating and cooling systems that were wasting energy; opportunities to save fan energy by resetting static pressure setpoint so to meet demand; fans and pump motors running at higher than required speeds; low chilled water system delta T’s resulting in required system configuration changes and increased efficiencies; high-space temperatures due to dirty air filters and wasted fan energy; time-of-day schedules for VAV boxes in a 24/7/365 facility; and test, adjust, and balance issues resulting in poor coil performance and wasted energy. The total cost of installation for the BalanceCx system was $22,800.