Overall Rating Gold
Overall Score 73.25
Liaison Meredith Moore
Submission Date Feb. 25, 2022

STARS v2.2

University of Illinois, Urbana-Champaign
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 4.11 / 6.00 Meredith Moore
Sustainability Programs Coordinator
Institute for Sustainability, Energy, and Environment
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 169,823,445 Kilowatt-hours 579,437.59 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 16,363,856 Kilowatt-hours 55,833.48 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 3,737,495 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
4,372,766.07 MMBtu

Gross floor area of building space, performance year:
22,753,687 Gross Square Feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 2,407,574.17 Square Feet
Healthcare space 110,476.09 Square Feet
Other energy intensive space 2,011,063.08 Square Feet

EUI-adjusted floor area, performance year:
29,800,850.60 Gross Square Feet

Degree days, performance year:
Degree days
Heating degree days 5,524 Degree-Days (°F)
Cooling degree days 1,118 Degree-Days (°F)

Total degree days, performance year:
6,642 Degree-Days (°F)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period July 1, 2020 June 30, 2021

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
22.09 Btu / GSF / Degree-Day (°F)

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 144,210,125 Kilowatt-hours 492,044.95 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 5,731,289 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
6,223,333.95 MMBtu

Gross floor area of building space, baseline year:
20,113,569 Gross Square Feet

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:
---

Source-site ratio for imported electricity:
3.14

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.19 MMBtu / GSF 0.25 MMBtu / GSF
Baseline year 0.31 MMBtu / GSF 0.36 MMBtu / GSF

Percentage reduction in total source energy consumption per unit of floor area from baseline:
31.81

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:
---

A brief description of energy use standards and controls employed by the institution:
---

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies 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 passive solar heating, geothermal systems, and related strategies employed by the institution:
---

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

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

Overview
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.


Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
---

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.