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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 58.51
Liaison Geory Kurtzhals
Submission Date Nov. 23, 2016
Executive Letter Download

STARS v2.0

Southern Illinois University Carbondale
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 0.63 / 6.00 Justin Harrell
Physical Plant Engineering Services
"---" indicates that no data was submitted for this field

Total building energy consumption, all sources (transportation fuels excluded):
Performance Year Baseline Year
Total building energy consumption 1,573,902 MMBtu 1,699,680 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 352,800 MMBtu 383,208 MMBtu
District steam/hot water 0 MMBtu 0 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 8,016,425 Gross Square Feet 8,023,835 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 355,053 Square Feet
Healthcare space 27,640 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 4,995
Cooling degree days 1,209

Source-site ratios::
Source-Site Ratio (see help icon above)
Grid-purchased electricity 3.14
District steam/hot water 1.20

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 July 1, 2004 June 30, 2005

A brief description of when and why the building energy consumption baseline was adopted:

A brief description of any building temperature standards employed by the institution:

Scheduling is used within a building automation system to set occupied and unoccupied hours for areas within the building. Thermostats within an area that is scheduled as unoccupied are automatically set back to save energy. Standby mode, where applicable, is used when a space is scheduled occupied but an occupancy sensor indicates that the space is vacant.
Standard Thermostat Set Points:
Mode | Heating | Cooling
Occupied | 70F | 75F
Standby | 68F | 77F
Unoccupied | 60F | 80F

A brief description of any light emitting diode (LED) lighting employed by the institution:

SIUC has standardized on LED lighting for new indoor and outdoor lighting.

A brief description of any occupancy and/or vacancy sensors employed by the institution:

Vacancy sensing is employed to automatically turn lights off. Lights must be manually turned on. Occupancy/vacancy sensing is also used to reset thermostat set points and to reduce outdoor air requirements in HVAC systems.

A brief description of any passive solar heating employed by the institution:

A brief description of any ground-source heat pumps employed by the institution:

SIUC has 3 geothermal heat pump systems:
McLafferty Annex: 130 ton distributed system, vertical wells
Transportation Education Center: 100 ton central system, vertical wells
Stone Center: 30 ton central system, vertical wells

A brief description of any cogeneration technologies employed by the institution:

The SIUC steam plant produces steam for campus heating and cooling from natural gas and coal boilers. Our circulating fluidized bed (CFB) coal boiler produces high pressure steam, all of which is directed through a back-pressure turbine and 3.5 MW generator before leaving the plant. Electric co-gen production depends entirely on the campus steam load. Co-gen provides roughly 16% of main campus electric energy annually at a generation efficiency of roughly 80%, compared to roughly 31% for electricity purchased from the grid.

A brief description of any building recommissioning or retrofit program employed by the institution:

The following buildings have been or are in the process of retro-commissioning:
Morris Library
Altgeld Hall
Engineering E
SIU Arena
Lingle Hall
Saluki Stadium

A brief description of any energy metering and management systems employed by the institution:

A continuing effort is underway to expand and improve upon a campus-wide building automation system, called Metasys, which aids in energy efficient operation of building systems. Metasys allows for continuous automatic monitoring of system performance and automatic control for maximum energy efficiency.

A brief description of the institution's program to replace energy-consuming appliances, equipment and systems with high efficiency alternatives:

A brief description of any energy-efficient landscape design initiatives employed by the institution:

A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:

A brief description of other energy conservation and efficiency initiatives employed by the institution:

The website URL where information about the institution’s energy conservation and efficiency initiatives is available:

Baseline Year is 2005
Performance Year is 2015
Data is reported on a Fiscal Year basis, which runs from 7/1/(FY-1) to 6/30/FY.

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.