UC Los Angeles Campus & Medical Center Strategic Energy Plan ...

Campus
Los Angeles
Santa Monica
Hospital
Los Angeles,
Westwood
Med Facilities
Table 2.3: Central Plant & Cogeneration Impacts on Purchased Utilities
Building
Energy Saved
Steam
Chilled Water
Electricity
Purchased Utility
Savings Notes
Steam not required for space heating is used in
the low pressure end of the steam turbine to
62.4 kWh/MBtu increase electrical output.
High pressure steam diverted from the chillers
to the steam turbine will increase electrical
0.72 kWh/tonh output.
1 kWh/kWh
Combined Cycle Cogen: Reduction in electricity
use lowers purchases from utility.
Steam 12.5 th gas/MBtu Steam is delivered by natural gas fired boilers.
Chilled Water 0.8 kWh/tonh
Electricity 1 kWh/kWh No cogenerated electricity
Steam 62.4 kWh/MBtu Steam comes from UC Los Angeles.
Chilled Water 0.72 kWh/tonh From UC Los Angeles
Electricity 1 kWh/kWh Combined Cycle Cogen: Buy from UCLA.
2.2 General Project Identification Categories and Approach
The following is a general description of the projects that were identified by the Strategic Energy
Plan. More detailed scope and savings information is included in the Project Descriptions
section of the report.
In general, projects were selected for this report that will bring campus systems up to the state
of the art technology. This is intended to identify all of the possible energy savings available
through retrofit projects. This results in some projects with longer paybacks where the existing
system may be moderately efficient, but not necessarily state of the art. However, it defines a
maximum savings target for the buildings evaluated. The campuses can decide on the
appropriate level of investment based on their individual needs and their performance in
meeting energy savings and green house gas emissions goals.
2.2.1 Lighting Projects
The report identifies the potential to convert existing 32W T8 fluorescent fixtures to 28W T8
lamps with premium efficiency ballasts with low ballast factor, at 42 W per two lamp fixture.
Several campuses have alternative standards, including UC Santa Barbara, which is
emphasizing dimming ballasts. Also recommended are increased penetration of occupancy
sensor controls, daylight harvesting, new stairwell fixtures, and replacement of interior HID
fixtures with fluorescent. Fluorescent conversion is also generally recommended for parking
structures.
2.2.2 HVAC Projects
A variety of HVAC projects are recommended for implementation at campus buildings. The
general intention of these retrofits is to make all air handlers of 10 hp and above meet basic
efficiency standards: variable air volume with economizers, operating only the hours necessary,
with direct digital controls, demand control ventilation where warranted, and static pressure
2413.01/Reports/UC SEP Draft Report – UCLA.doc 2-4 December 31, 2008
Newcomb | Anderson | McCormick