Overall Rating Gold
Overall Score 66.00
Liaison Jonna Korpi
Submission Date Nov. 4, 2019
Executive Letter Download

STARS v2.1

University of Minnesota, Duluth
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 3.70 / 6.00 Mindy Granley
Sustainability Director
UMD Office of Sustainability
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 137,320 MMBtu 138,001 MMBtu
Electricity from on-site renewables 146.72 MMBtu 0 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) 391,357 MMBtu 354,053 MMBtu
Total 528,823.72 MMBtu 492,054 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year Jan. 1, 2018 Dec. 31, 2018
Baseline Year Jan. 1, 2007 Dec. 31, 2007

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):

We used 2007 as it was the first year the campus greenhouse gas emissions inventory was calculated.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 3,632,453 Gross Square Feet 2,948,234 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 0.15 MMBtu / GSF 0.17 MMBtu / GSF
Source energy 0.23 MMBtu / GSF 0.27 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 9,139 Degree-Days (°F)
Cooling degree days 120 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 714,652 Square Feet
Healthcare space 127,225 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
5,380,755 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
10.61 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):

UMD adopted a Campus Temperature Policy that guides efforts to conserve energy and maintain occupant comfort. Buildings are ramped down in off-hours and weekends to conserve energy, and occupants are invited to power down over long weekends and semester breaks. Regular campus emails and updates remind staff, faculty, and students to join in to save energy, along with ongoing social media campaigns and campus outreach through tabling/events.

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

UMD has a Building Systems Control Center, and uses building control systems both from Siemans and Johnson Control companies. The BSAC staff revise and control the temperature schedule each year, based on occupancy hours.

In addition, new building occupants in LEED buildings get a building "User Guide" that explains the temperature controls.

UMD adopted a Campus Temperature Policy that guides efforts to conserve energy and maintain occupant comfort.

More at: http://d.umn.edu/sustainability/campus-initiatives/buildings/building-systems-controls

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

The UMD campus uses LED lighting in both interior (lecture halls, classrooms, elevators and safety/Exit signs) and exterior (street, path, and parking lot lighting). In 2018, a whole-campus lighting retrofit study was done, to evaluate projects and potential for savings from LED conversions, sponsored by our utility Conservation Improvement Program.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:

The Bagley Classroom uses passive solar heating (it was designed to meet Passive House standards) Large, triple pane, south facing windows provide the building with plenty of natural sunlight as well as passive solar heating during the winter months. Additional natural lighting is provided by solar tubes in the ceiling. The building has an airtight envelope, allowing just 0.47 air changes per hour (as opposed to 5.0 for a typical home). Structurally Insulated Panels (SIP), produced with 100% recycled material in a South Dakota factory, surround the building; the panels are thick and have few thermal breaks where heat loss and condensation can occur. More info at: https://champ.d.umn.edu/bagley-classroom

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):

Higher Education Asset Protection and Rehabilitation dollars are used to update building systems each budget cycle (including $400,000 in 2018, to upgrade a boiler at Research Lab Building and other miscellaneous projects). In addition, campus Repair and Rehabilitation dollars are used for smaller energy upgrade projects (air handler replacements, LED upgrades, etc.) UMD has only officially recommissioned one building, the UMD Library, where all heating, ventilation and air conditioning systems (HVAC) were inspected to ensure they are operating correctly, and within the original design specifications.

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

Total Renewables generated on campus: 146.72 MMBTU
Bagley: 6639.52 kwh = 22.63 MMBTU
Malosky: 7886.48 kwh = 26.89 MMBTU
Oakland - 28,486 kwh = 97.2 MMBTU
CAMS - didn't start monitoring until Jan 2019

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.