Overall Rating Gold - expired
Overall Score 65.48
Liaison Amy Brunvand
Submission Date Oct. 21, 2020

STARS v2.2

University of Utah
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 3.70 / 6.00 William Leach
Sustainability Project Coordinator
Facilities Management
"---" indicates that no data was submitted for this field

Part 1. Site energy use per unit of floor area

Performance year energy consumption

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 255,196,512 Kilowatt-hours 870,730.50 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 1,060,525 Kilowatt-hours 3,618.51 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 1,660,699 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
2,535,048.01 MMBtu

Performance year building space

Gross floor area of building space, performance year:
16,812,339 Gross square feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 2,003,447 Square feet
Healthcare space 1,627,537 Square feet
Other energy intensive space 617,290 Square feet

EUI-adjusted floor area, performance year:
24,691,597 Gross square feet

Performance year heating and cooling degree days 

Degree days, performance year:
Degree days
Heating degree days 5,726 Degree-Days (°F)
Cooling degree days 1,507 Degree-Days (°F)

Total degree days, performance year:
7,233 Degree-Days (°F)

Performance period

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period July 1, 2018 June 30, 2019

Metric used in scoring for Part 1

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

Part 2. Reduction in source energy use per unit of floor area

Baseline year energy consumption

STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 231,203,369 Kilowatt-hours 788,865.90 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 23,559 Kilowatt-hours 80.38 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 1,769,332 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
2,558,278.28 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:
13,258,853 Gross square feet

Baseline period

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period Jan. 1, 2010 Dec. 31, 2010

A brief description of when and why the energy consumption baseline was adopted:
The 2010 baseline year was selected to maintain a consistent emission-inventory history between the performance year and the year we had previously submitted a STARS report.

Source energy

Source-site ratio for imported electricity:
3.14

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.15 MMBtu per square foot 0.26 MMBtu per square foot
Baseline year 0.19 MMBtu per square foot 0.32 MMBtu per square foot

Metric used in scoring for Part 2

Percentage reduction in total source energy consumption per unit of floor area from baseline:
18.31

Optional Fields 

Documentation 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:
Working through Sustainability Office staff, FM Energy Management has information for Green Teams - information is also included in outreach materials associated with Green Office Certification programs.

A brief description of energy use standards and controls employed by the institution:
Utah has been aggressive keeping up with the latest Energy Codes for construction over time. The state has required all new state-funded buildings to be built in a way that qualifies for LEED silver or higher.

Operationally, new standards have been created for controls optimization and to clarify temperature and humidity requirements by space use. Operational efficiency projects are continuing in the process of applying these standards campus-wide.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
The University of Utah continues to improve its lighting standard for exterior structures and uses LEDs in all new construction and renovation projects where applicable. Buildings, parking structures, walkways, etc. are being switched over to LEDs and are required to adhere to the University’s dark-sky policies that minimize light pollution, and our lighting specialist in Facilities Sustainability & Energy works extensively with project teams to identify opportunities for LED installation.

See Attachment: Energy Focus University of Utah Case Study, LED Retrofit

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
The Gardner Commons building was recently constructed with a ground source thermal storage system. The loop can exchange energy seasonally and enabled smaller mechanical systems to be used within the building.

A brief description of co-generation employed by the institution:
The UofU has a natural gas combined heat and power (CHP) plant that serves its lower campus area. Facilities Management has created operating guidelines to ensure the plant is operating at peak efficiency (based on demand for campus heat, pricing of NG and electricity, etc.)

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
Facilities Sustainability & Energy and the Sustainability Office implemented an Energy Star purchasing requirement for new appliances including a refrigerator/freezer swap. Facilities Management completed a major project that increased the efficiency of the east campus chilled water production and distribution system which included re-commissioning of chilled water systems at numerous buildings served by the plant.

Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
Area and energy data from Facilities Sustainability & Energy division based on utility bills. All energy data is associated with specific buildings and the area, construction date, and demolition of buildings is tracked over time.

Attachments:

#1 Stats on Simple Category

#2 Energy Focus University of Utah Case Study: LED Retrofit

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 or simply email your inquiry to stars@aashe.org.