Overall Rating Silver
Overall Score 56.42
Liaison Janet Purchase
Submission Date March 1, 2019
Executive Letter Download

STARS v2.1

California State University, Fullerton
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 2.96 / 6.00 Janet Purchase
Utility & Energy Analyst
Capital Projects/Facilities Mgmt.
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 23729 MMBtu 49565 MMBtu
Electricity from on-site renewables 18928 MMBtu 0 MMBtu
District steam/hot water (sourced from offsite) 0 MMBtu 0 MMBtu
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass) 382993 MMBtu 368819 MMBtu
Total 425650 MMBtu 418384 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year July 1, 2017 June 30, 2018
Baseline Year July 1, 2012 June 30, 2013

A brief description of when and why the building energy consumption baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 5438137 Gross Square Feet 5270000 Gross Square Feet

Source-site ratio for grid-purchased electricity:

Total building energy consumption per unit of floor area:
Performance Year Baseline Year
Site energy 0.08 MMBtu / GSF 0.08 MMBtu / GSF
Source energy 0.09 MMBtu / GSF 0.10 MMBtu / GSF

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:

Degree days, performance year (base 65 °F / 18 °C):
Degree days (see help icon above)
Heating degree days 159 Degree-Days (°F)
Cooling degree days 3344 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 89473 Square Feet
Healthcare space 32716 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
5689837 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
21.36 Btu / GSF / Degree-Day (°F)

Documentation (e.g. spreadsheet or utility records) to support the performance year energy consumption figures reported above:

A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency (e.g. outreach and education efforts):

A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):

At the Central Plant, an Allen Bradley Balance of Plant (BOP) energy management system monitors and controls the production side of the operation. Plant operators reference an energy dashboard to monitor the output of PV, tri-generation, and So Cal Edison electricity resources to ensure the program is maximizing the lower cost PV and tri-gen components while maintaining a small (200kW) Edison import to obtain the best value for the university. Hot and chilled thermal energy storage tanks are charged via absorption chillers (which operate off the tri-gen waste heat) or a variable speed electric chiller which is operated when we have excess PV energy or during overnight hours when Edison electric rates are at their lowest.

Campus HVAC and lighting is controlled via an Andover BMS program. HVAC equipment and lighting is scheduled on/off. Office and classroom HVAC is controlled between 68F (heating set point) and 76F (cooling set point). Economizer controls are incorporated where applicable (office and non-laboratory class rooms). In 2017, the library HVAC system was upgraded and now uses a trim and respond control sequence to maximize HVAC energy efficiency.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

The campus has exterior LEDs along with parking lots, parking structures, pedestrian areas, and building exteriors. In 2016, the campus completed a campus wide retrofit, converting 25 watt T8s to LEDs. Savings from this project was 4 Million kWh.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:

A brief description of co-generation employed by the institution, e.g. combined heat and power (CHP):

CSUF has a 4.4 MW natural gas powered turbine generator feeding waste heat to (2) absorption machines. The machines make both heating hot water and chilled water that is stored in the campus' thermal energy storage tanks.

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment and systems with high efficiency alternatives (e.g. building re-commissioning or retrofit programs):

In 2017, three compression freezers in the Biology labs were replaced with three Stirling Ultra-Low Temperature freezers in 2017. The freezers are unique in that they have no compressor and are powered by helium and gravity driven thermosiphon. This means that the gas can be circulated without having a mechanical pump to do the work. Jointly, using these Energy Star freezers saves 10,534 kwh and $6,413 per year.

The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:

Based on the GHG report in OP-1, we used a CO2 factor of 0.0847/MWh for Purchased Electricity. This factor was provided to us by Southern California Edison, our electricity provider.

This credit includes information for the Main Fullerton Campus. Locations within the institutional boundary not included in this credit are Irvine Campus, Tucker Wildlife Sanctuary, Grand Central Arts Center in Santa Ana, Fullerton Arboretum, the Desert Studies Center in Zyzzyx, and the President's house. The reason for this is these locations are run via separate operations.

The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution and complete the Data Inquiry Form.