Overall Rating Silver - expired
Overall Score 63.29
Liaison Allison Mihalich
Submission Date Oct. 13, 2017
Executive Letter Download

STARS v2.1

University of Notre Dame
OP-5: Building Energy Consumption

Status Score Responsible Party
2.85 / 6.00 Mike Seamon
Vice President
Campus Safety & University Operatis
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 252,005 MMBtu 247,343 MMBtu
Electricity from on-site renewables 0 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) 2,291,230 MMBtu 2,494,516 MMBtu
Total 2,543,235 MMBtu 2,741,859 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year July 1, 2015 June 30, 2016
Baseline Year July 1, 2007 June 30, 2008

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 10,227,640 Gross Square Feet 9,050,037 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 0.25 MMBtu / GSF 0.30 MMBtu / GSF
Source energy 0.30 MMBtu / GSF 0.36 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 5,696 Degree-Days (°F)
Cooling degree days 748 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 1,646,668 Square Feet
Healthcare space 54,821 Square Feet
Other energy intensive space

EUI-adjusted floor area, performance year:
13,630,618 Gross Square Feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
28.95 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 University has a Central Building Automation System (CBAS) which provides the ability to create discrete building and system operating schedules to reduce energy consumption. The CBAS system is implemented across over 87% of the campus. This system is used to match the operation of a facility’s HVAC systems with its occupancy patterns. Discrete scheduling is performed in all spaces where possible. Additionally, in newly constructed or renovated spaces occupancy sensors are employed to enhance energy conservation of both the lighting and HVAC systems by setting back unoccupied spaces. Additional strategies including discharge reset, CO2 control and a zero dead band control of space temperatures between 70 and 75 degrees F is managed by this system.

A single system is installed with a single front end which is under the purview of the Utilities Department. This Invensys system provides energy managers with the ability to tighten fan system controls. Building Managers work with our energy managers to adjust schedules for special events rather than a general expanding of schedules to cover a wide array of events.

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

LED’s are currently deployed in approximately 40% of campus outdoor lighting fixtures and have been established as the standard moving forward for new applications. They are also being used in applications indoors where there is an energy efficiency opportunity and where the lighting capabilities are appropriate. This has included projects in conference rooms, offices and lobbies. The University has been a member of the LED University initiative for approximately 5 years.

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):

Five steam turbine generators, of which two are back pressure and three are extraction type, are used to cogenerate electricity with the waste heat being used to heat campus or drive turbine driven chillers to cool campus.

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:

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.