Overall Rating Bronze - expired
Overall Score 34.71
Liaison Kristina Bryan
Submission Date March 2, 2018
Executive Letter Download

STARS v2.1

Saint Louis University
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 2.53 / 6.00 Amy Hargis
Project Analyst
Sustainability & Benchmarking
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 413,099 MMBtu 386,628 MMBtu
Electricity from on-site renewables 895 MMBtu 0 MMBtu
District steam/hot water (sourced from offsite) 59,093 MMBtu 62,426 MMBtu
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass) 272,606 MMBtu 264,583 MMBtu
Total 745,693 MMBtu 713,637 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, 2012 June 30, 2013

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):
A 2013 baseline was established based on goals set forth by the University to reduce energy consumption consumption (BTU/GSF) by 20% by 2020 over the 2013 baseline year. Therefore, data and knowledge about initiatives occurring between these time periods can be reported, which may influence fluctuations in energy consumption.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 7,815,345 Gross square feet 7,651,755 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 0.10 MMBtu per square foot 0.09 MMBtu per square foot
Source energy 0.21 MMBtu per square foot 0.20 MMBtu per square foot

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 3,594 Degree-Days (°F)
Cooling degree days 1,784 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 425,432 Square feet
Healthcare space 65,380 Square feet
Other energy intensive space

EUI-adjusted floor area, performance year:
8,796,969 Gross square feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
15.76 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):
Each year, an eight-week "SLU Energy Madness Competition" is held that places all on-campus residence halls against each other. Data surrounding each residence hall's electricity and heating/air use are collected and tracked to determine the amount of energy is used weekly by each hall. There are posters and A-Frame signs placed in main areas around campus informing students of the bi-weekly results of the competition. The signs along with information on facilities services websites provide pertinent information on how to decrease energy consumption and change daily habits.

There are also many tablings (Fall Welcome, Winter Welcome, Fairs, etc.) that provide SLU community members helpful information on ways to change energy consumption patterns.

All custodial and maintenance workers receive beginning-of-the-year training and information about energy consumption and efficiency practices. The training is given by a Sustainability and Benchmarking member (Director or Graduate Assistant).

A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):
Saint Louis University has a standard temperature set point of 72°F all year.

The University uses Metasys, a Johnson Controls system, for building automation and control. The system is configured to enable night setbacks as well as unoccupied and local operation of remote buildings. Based on scheduling needs for a particular building or zone, this system turns air handlers and pumps on and off. Building occupancy needs are determined by academic, event, research, and administrative users for each building or zone.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
Large multipurpose banquet rooms and common areas are the primary target for LED retrofits.

LED lighting is being to being installed in many of the following areas: wall mounted exterior lights, chandeliers, private offices, banquet rooms, track lighting, exit signs, and parking lots.

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):
Retro-commissioning has been performed on several buildings in the past years including but not limited to the Allied Health Building and Morrissey Hall.

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

Data source(s) and notes about the submission:
Total building GSF was used, which includes open air, covered parking garages.

Total building GSF was used, which includes open air, covered parking garages.

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.