Overall Rating Gold - expired
Overall Score 68.06
Liaison Meredith Moore
Submission Date March 17, 2015
Executive Letter Download

STARS v2.0

University of Illinois, Urbana-Champaign
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 1.88 / 6.00 Stephanie Lage
Assistant Director
Ctr for Sustainable Environment
"---" 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 3,673,775 MMBtu
+ Date Revised: June 4, 2015
4,433,962 MMBtu
+ Date Revised: June 4, 2015
+ Date Revised: June 4, 2015

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 681,764 MMBtu
+ Date Revised: June 11, 2015
492,045 MMBtu
+ Date Revised: June 11, 2015
District steam/hot water 0 MMBtu 0 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 21,003,246 Gross Square Feet 20,113,569 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 1,760,708 Square Feet
Healthcare space 84,225 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 6,532
Cooling degree days 1,107

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, 2013 June 30, 2014
Baseline Year July 1, 2007 June 30, 2008

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

The University of Illinois at Urbana-Champaign adopted the baseline year of 2008, after careful consideration of data availability and accuracy. Information dating back to 2005 is not very reliable.

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

The Direct Digital Control (DDC) system allows us to reduce HVAC needs during unoccupied periods. The Vet Med complex is one example where this is in place, based upon an Operating Schedule the department provided to F&S.

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

LEDs are in use at KCPA, Talbot Lab, ARC, ESB, McKinley and other buildings

A variety of types of LEDs are in place including downlighting, exterior canopy lighting and wall packs.

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

Occupancy sensor technology includes wall and ceiling mount, passive infrared and ultrasonic motion sensors.

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:

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

Campus burns natural gas and coal to create steam for most energy needs on campus. These boilers have electric turbines attached to them so that the steam co-generates electricity that can offset the purchase of additional electricity for campus.

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

The retrocommissioning process on the Urbana campus is focused on reviewing and improving building mechanical systems, while maintaining or improving occupant comfort.

Engineers undertake a thorough investigation of available building documentation, energy usage history, and similar pertinent data, while conducting meetings with building staff.
Field technicians and tradesmen gather data regarding operating conditions, sensor accuracy, equipment condition, and historic maintenance data from the field and current maintenance staff.
The composite teams discuss findings and then look to restore mechanical systems to their original design while implementing energy saving improvements.
The teams take the lead in making small changes and recommending larger capital projects, which require more funding, to Engineering or Maintenance for augmenting and sustaining the building's energy saving strategies.
Building system control experts implement modern methods of control, monitor energy usage after changes, review actual metered data, and verify the savings.

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

The building energy system controls are connected to Direct Digital Controls (DDC), which allows real time energy metering, controlled set-backs, and system scheduling.

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:

The primary contract for vending machines on our campus is systematically replacing old beverage machines with new machines that include sensors. In addition, our snack vendors are supplying new machines that include this technology.

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

The Energy Conservation Incentive Program (ECIP) awards building upgrades on campus in facilities which have produced top energy conservation results. The ECIP encourages energy conservation through the behavioral and structural changes of academic units and cooperation of building occupants. Each year eight campus buildings will receive ECIP awards in two separate categories.
The ECIP measures energy conservation in buildings as the percentage difference of energy usage during the most recent fiscal year compared to the previous fiscal year.

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

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.