Overall Rating Bronze
Overall Score 43.45
Liaison Chris Homan
Submission Date Feb. 25, 2019
Executive Letter Download

STARS v2.1

Illinois State University
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 0.30 / 6.00 Ben Krull
Sustainability Program Manager
Office of Sustainability
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 89676257 MMBtu 88944601 MMBtu
Electricity from on-site renewables 0 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) 4646568 MMBtu 5619448 MMBtu
Total 94322825 MMBtu 94564049 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year July 1, 2016 June 30, 2017
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):

The 2013 baseline is being adopted because it was the last year a GHG inventory was taken.


Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 6929756 Gross Square Feet 6556334 Gross Square Feet

Source-site ratio for grid-purchased electricity:
3.14

Total building energy consumption per unit of floor area:
Performance Year Baseline Year
Site energy 13.61 MMBtu / GSF 14.42 MMBtu / GSF
Source energy 41.30 MMBtu / GSF 43.46 MMBtu / GSF

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:
4.95

Degree days, performance year (base 65 °F / 18 °C):
Degree days (see help icon above)
Heating degree days 4892 Degree-Days (°F)
Cooling degree days 1100 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 76951 Square Feet
Healthcare space 9141 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
7330478 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
2147.40 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):

None


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

Average building set-point is 68-72 degrees during occupancy times.


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

The North University Parking Garage installed 60 LED lamps on the first and second floors of the garage.


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

None.


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

None


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):

None.


The website URL where information about the programs or initiatives is available:
Additional documentation to support 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 and complete the Data Inquiry Form.