Download project report.

BACKGROUND
Pacific Gas & Electric has been investigating the advantages of
utilizing emerging technologies, and have been performing an
analysis to evaluate their true associated energy savings. They
were approached by a number of hospitals for a proposed
installation of LED lighting fixtures to replace their existing
halogen surgical lights in their operating rooms. Of these
facilities, PG&E determined to utilize Kaiser Permanente
and Petaluma Valley hospital for their pilot program to
commission a study for this application of this emerging
technology. The goal of this study was to establish the
total savings attributed to the fixture replacement. From
this data the utility will determine how to incent these
installations and the degree by which to encourage future
installations.
The study consisted of:
1. A field study to establish the true baseline at both facilities.
Operating Room Lighting Replacement
2. A paper study of the associated savings of these
installations.
3. A study of the associated lighting quality.
4. A metered study solely at Petaluma Valley Hospital to
establish that the associated saving would be uniform.
This study analyzed the true savings associated with the retrofit and
its associated economic analysis. It has been designed to allow its
application to be applied to future installations.
FACILITY AND CURRENT CONDITIONS
Kaiser’s 2425 Geary surgery center consists of 12 operating rooms
on the 4 th floor of the facility. They are all located along a common
corridor, and two of them were retrofitted from storage facilities.
Appendix I contains the associated internal loads with each, as
established by a field survey on May 1, 2009.
Figure 1: Kaiser Operating Room
Figure 2: Operating rooms have high equipment loads
Salas O’Brien Engineers | expect a difference | Project No. 09104
Page 2