|Submission Date||Jan. 10, 2020|
Southern Illinois University Carbondale
OP-5: Building Energy Consumption
|3.37 / 6.00||
Physical Plant Engineering Services
Figures needed to determine total building energy consumption:
|Performance Year||Baseline Year|
|Grid-purchased electricity||307,180 MMBtu||382,744 MMBtu|
|Electricity from on-site renewables||98.24 MMBtu||56.22 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)||1,116,823 MMBtu||1,201,332 MMBtu|
|Total||1,424,101.24 MMBtu||1,584,132.22 MMBtu|
Start and end dates of the performance year and baseline year (or 3-year periods):
|Start Date||End Date|
|Performance Year||July 1, 2018||June 30, 2019|
|Baseline Year||July 1, 2004||June 30, 2005|
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):
Gross floor area of building space:
|Performance Year||Baseline Year|
|Gross floor area of building space||7,998,208 Gross Square Feet||7,240,281 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||0.18 MMBtu / GSF||0.22 MMBtu / GSF|
|Source energy||0.26 MMBtu / GSF||0.33 MMBtu / GSF|
Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:
Degree days, performance year (base 65 °F / 18 °C):
|Degree days (see help icon above)|
|Heating degree days||4,656 Degree-Days (°F)|
|Cooling degree days||1,418 Degree-Days (°F)|
Floor area of energy intensive space, performance year:
|Laboratory space||370,072 Square Feet|
|Healthcare space||26,333 Square Feet|
|Other energy intensive space|
EUI-adjusted floor area, performance year:
Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
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):
Members on the Saluki Green Action Team receive fun/informative emails on sustainable actions to take on various themes including energy efficiency and water conservation. The regularly schedule 'posts' include a "Take Action" section with specific examples and events on campus and in the community. Often written by student fellows, our posts are sent to over 1,200 members on our listserve and can be viewed permanently on our webpage. Sample energy efficiency posts include topics such as: turning lights out, info on energy efficient buildings, energy consumption of common devices and home appliances.
A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):
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 | 76F
Standby | 69F | 77F
Unoccupied | 55F | 85F
Where possible, ventilation is disabled in standby and unoccupied modes.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
SIUC has standardized on LED lighting for new indoor and outdoor lighting. We have replaced most of our campus roadway lighting with new LED fixtures. We upgrade to LED lighting for maintenance replacements.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
SIUC has three buildings with geothermal HVAC systems: McLafferty Annex (61,576 gsf), Stone Center (14,277 gsf), and the Transportation Education Center (187,083 gsf).
A brief description of co-generation employed by the institution, e.g. combined heat and power (CHP):
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 cogenerator before leaving the plant. Electric co-gen production depends entirely on the campus steam load. Co-gen provides roughly 15% of total campus electricity annually at a generation efficiency of roughly 80%, compared to roughly 31% for electricity purchased from the grid.
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 following buildings have been or are in the process of retro-commissioning:
Student Services Building
Life Sciences II
Life Sciences III
The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:
Baseline Year is 2005
Performance Year is 2019
Data is reported on a Fiscal Year basis, which runs from 7/1/(FY-1) to 6/30/FY.
Weather data from KMDH, Southern Illinois Airport.
Campus energy data includes:
* Coal burned (source fuel for cogenerated electricity & steam)
* Purchased electricity (not including cogen)
* Natural gas (steam production & direct heating)
* Diesel (stationary emergency generators, non-road ultra-low sulfur diesel (15 ppm) phased in 2007-2014)
* Travel Service Fleet Fuels (both on and off campus):
- Gasoline (E-10)
- Ethanol (E-85)
- Diesel (onroad ultra-low sulfur diesel (15 ppm) phased in 2006-2010)
Campus energy does not include:
* Springfield School of Medicine facilities, which are excluded from reporting boundary.
* Small amount of motor fuels purchased directly by the College of Agricultural Sciences. COAS purchases most of its fuel from Travel Services, which is included, but a small amount of direct purchases for which there are not good records is excluded from both baseline and performance years.
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.