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The Sustainability Tracking, Assessment & Rating System™ (STARS) is a transparent, self-reporting framework for colleges and universities to measure their sustainability performance.

Overall Rating Silver
Overall Score 52.49
Liaison Alexi Lamm
Submission Date Nov. 1, 2016
Executive Letter Download

STARS v2.1

Utah State University
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 3.56 / 6.00 Zac Cook
Energy Manager
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 117,693 MMBtu 191,221 MMBtu
Electricity from on-site renewables 4,112 MMBtu 3,241 MMBtu
District steam/hot water (sourced from offsite) 772,532 MMBtu 672,532 MMBtu
Energy from all other sources (excluding transportation fuels) 0 MMBtu 0 MMBtu
Total 894,337 MMBtu 866,994 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year July 1, 2014 June 30, 2015
Baseline Year Jan. 1, 2007 Dec. 31, 2007

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):

USU signed the ACUPCC in 2007. It is our chosen baseline to evaluate progress from the time USU became a signatory to the Commitment.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 5,995,237 Gross Square Feet 5,346,893 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 0.15 MMBtu / GSF 0.16 MMBtu / GSF
Source energy 0.22 MMBtu / GSF 0.26 MMBtu / GSF

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline (0-100):

Degree days, performance year (base 65 °F / 18 °C):
Degree days (see help icon above)
Heating degree days 6,247 Degree-Days (°F)
Cooling degree days 969 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 391,285 Square Feet
Healthcare space 0 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
7,585,577 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
16.34 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):

USU uses two different building management systems to control the temperatures in all of the buildings on central campus. StruxureWare from Schneider Electric and Metasys from Johnson Controls are used to control everything from temperature set points, time-of-day schedules, occupancy requirements, fume hood operation, outside air mixtures, and exhaust fan operation. In most of the buildings, USU can control these factors down to the room level to provide optimal comfort and energy management control.

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

USU housing has installed 6500 LED bulbs in bathrooms, bedrooms, kitchens, common spaces, pole lights, and area lighting. The LED type varies by building. The pool and one greenhouse also use LEDs. The basketball venue converted to LED.

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):

The USU cogeneration plant contains three Babcock and Wilcox boilers with a capacity of 220,000 lbs/hr of steam to heat the campus. It also contains three York chillers with the capacity to produce a total of 4500 tons of cooling. One Solar gas turbine generator unit with a heat recovery has the capacity to produce 4.5 MW of electrical power and up to 50,000 lbs/hr of steam from the heat recovery unit.

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):

The website URL where information about the programs or initiatives is available:

Additional documentation to support the submission:

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.