Page 82 - Zero Net Energy Case Study Buildings-Volume 3

CASE STUDY NO. 14 CALIFORNIA DMV FIELD OFFICE
(Above) Roof Plan. (Courtesy of SIM-PBK)
in January, 2013. Shortly after that, the executive order was issued and the DMV decided to make this Fresno field office replacement facility its first ZNE project.
Since the building was already under construction, the two state agencies decided to leave the building design unchanged and simply to add enough PV arrays to the building and the site in order to produce a ZNE performance. It was determined that the building design was essentially already optimized for low energy use and it would be less disruptive to the state contract process and the schedule to just right-size the PV system and add it to the project scope.
The new work was added via change order issued to the general contractor and additional ser- vices for the design team to design and specify the PV system and its ancillary structures.
Planning Concept and General Design Considerations
Programmatically, the facility provides twenty-six operating transaction windows, multiple drive test and vehicle verification lanes and usually serves 1,500 to 2,000 people per day, a large user population at any one time.
The spatial relationships and diagrams are tightly prescribed for this building type, so the shape of the floor plan is pre-determined to a large extent. The existing building also had to kept operational during construction. These constraints, combined with the site geometry and access conditions, essentially set the location at the north end of the site, with an ori- entation toward the southeast.
68
Zero Net Energy Case Study Buildings: Volume 3