Overall Rating Silver
Overall Score 53.27
Liaison Prabhakar Shrestha
Submission Date Feb. 20, 2018
Executive Letter Download

STARS v2.1

University of Nebraska - Lincoln
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 5.16 / 6.00 Kirk Conger
Energy Engineer
Utility & Energy Management
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 666,845 MMBtu
+ Date Revised: Feb. 15, 2019
700,210 MMBtu
+ Date Revised: Feb. 15, 2019
Electricity from on-site renewables 0 MMBtu 0 MMBtu
District steam/hot water (sourced from offsite) 0 MMBtu
+ Date Revised: Dec. 18, 2018
0 MMBtu
+ Date Revised: Dec. 18, 2018
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass) 707,585 MMBtu
+ Date Revised: Feb. 15, 2019
+ Date Revised: Dec. 18, 2018
719,950 MMBtu
+ Date Revised: Feb. 15, 2019
+ Date Revised: Dec. 18, 2018
Total 1,374,430 MMBtu 1,420,160 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, 2005 June 30, 2006

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 14,685,282 Gross Square Feet
+ Date Revised: Feb. 15, 2019
9,035,304 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 0.09 MMBtu / GSF 0.16 MMBtu / GSF
Source energy 0.19 MMBtu / GSF 0.32 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 5,032 Degree-Days (°F)
Cooling degree days 1,432 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 969,187 Square Feet
Healthcare space 175,011 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
17,285,667 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
12.30 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):

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

The central building operating system operates in all classroom/office/lab buildings.
Where possible (mostly classroom/office) air handlers are turned off at night and on weekends. Otherwise, room thermostats go to a low-energy mode at night and on weekends. Occupancy sensor reduce HVAC use when room is unoccupied, even during normal scheduled hours of operation.

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

One parking garage is entirely LED, and one gym was recently converted to high-bay LED. UNL Building Systems Maintenance have begun installing LED retrofits wherever possible in place of incandescent track lighting, HID lamps, and T12 fluorescents.

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, e.g. combined heat and power (CHP):

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 website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:

For the full list of energy conservation initiatives go to http://bf.unl.edu/ and click on the sustainability initiatives document.

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.