Overall Rating Gold
Overall Score 82.81
Liaison Aaron Durnbaugh
Submission Date April 12, 2023

STARS v2.2

Loyola University Chicago
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 5.13 / 6.00 Aaron Durnbaugh
Director of Sustainability
Office of Sustainability
"---" 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 56,999,494 Kilowatt-hours 194,482.27 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 0 Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 170,139 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
364,621.27 MMBtu

Performance year building space

Gross floor area of building space, performance year:
4,664,622 Gross square feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 170,246 Square feet
Healthcare space 3,804 Square feet
Other energy intensive space 39,496 Square feet

EUI-adjusted floor area, performance year:
5,052,218 Gross square feet

Performance year heating and cooling degree days 

Degree days, performance year:
Degree days
Heating degree days 5,835 Degree-Days (°F)
Cooling degree days 1,344 Degree-Days (°F)

Total degree days, performance year:
7,179 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, 2021 June 30, 2022

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
10.05 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 62,500,031 Kilowatt-hours 213,250.11 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 0 Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 320,170.50 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
533,420.61 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:
3,647,900 Gross square feet

Baseline period

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period July 1, 2007 June 30, 2008

A brief description of when and why the energy consumption baseline was adopted:
This is the standard baseline date for sustainability reporting at Loyola.

Source energy

Source-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.08 MMBtu per square foot 0.16 MMBtu per square foot
Baseline year 0.15 MMBtu per square foot 0.26 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:
38.61

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:
Loyola has undertaken a number of energy related initiatives on all campuses. Specifically an annual program titled 'EnergyWeek' takes place each fall to engage the community on energy impacts and opportunities. Regular communications to all stakeholders on energy efficiency and proper operations take place at start of school year and prior to major breaks.

A brief description of energy use standards and controls employed by the institution:
Loyola's Information Commons uses a Building Automation System (BAS) that divides the seasons into Winter and Summer and monitors indoor and outdoor conditions to react accordingly. In Winter (whenever the the temperature falls below 55 degrees Fahrenheit), space is maintained at approximately 71 degrees. In Summer, the air handlers turn off and windows open when the temperature is between 55 and 68 degrees. When the temperature is above 74 degrees, the air handlers start circulating air.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
Loyola is upgrading many of its buildings with energy-efficient technologies, such as energy management systems, heat recovery systems, LED lighting, and lighting sensors. Recently, Loyola completed a major conversion from HID to LED for outdoor lighting fixtures across campus.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
Loyola has the largest geothermal installation in Northeastern Illinois at the School of Environmental Sustainability.

A brief description of co-generation employed by the institution:
N/A

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
We have many retrofit programs underway and systematic recommissioning of our buildings.

Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
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Data source(s) and notes about the submission:
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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.