PNW Smart Grid Demonstration Project

HVAC Load Shed Building & Room Selection Process

Smart Grid >> Grid Stability Support >> HVAC Load Shed >> Load Shedding Building & Room Selection
Control Room

How were Load Shed buildings selected? Many building and room occupants want to know why their building and rooms were selected for the load shedding process while others want to know why they were not selected.  A standardized process was followed for the HVAC Load Shed room selections as outlined in the six steps below:

a. First our Energy Services Contractor, McKinstry Company, reviewed the campus HVAC systems to identify the buildings with Variable Air Volume (VAV) systems which provide the individual room controls necessary for most HVAC Load Shed applications. There were 38 buildings identified having the VAV systems.

b. Then McKinstry Company reviewed the building HVAC systems to identify any general problems with implementing the HVAC Load Shed due to the system design, known building air quality issues, etc. This resulted in 10 buildings being removed from the original list of 38 buildings.

c. An “introductory” email on the Smart Grid HVAC Load Shed feature was sent to the building Facilities Coordinator and/or other designated contact(s) by the Facilities Operations Energy Director to initiate detailed investigations on the remaining 28 buildings.

d. McKinstry Company then met with the building contact(s) to review the HVAC Load Shed feature, performed a survey of each room in the facility to confirm the current room use, developed a draft list of HVAC Load Shed room recommendations, reviewed the draft list with the building contact(s) and made changes per their input.

e. McKinstry then met with our HVAC Load Shed Committee for final review of the draft room list. The Committee included the Facilities Services Control Shop Supv., Maintenance Mechanics Supv., Plant Engineering Supv., Plant Engineering Quality Engineer, EH&S Air Quality and Lab Safety representatives, and the Energy Director. During the Committee meetings McKinstry reviewed the HVAC system configurations, draft room selection list, rooms they recommended not be included and why, differential pressure issues, building contact input, etc.

f. The room selection recommendations were reviewed, any concerns were discussed, and appropriate changes made to the list. The Control Shop Supervisor then confirmed that any rooms with registered ADA air quality restrictions were removed from the list. That resulted in the final room selection list.

Facilities Services, 100 Dairy Road, Washington State University, Pullman WA 99164-1150, 509-335-9000