Overall Rating Expired
Overall Score Expired
Liaison Jacob Saffert
Submission Date Feb. 4, 2015
Executive Letter Download

STARS v2.0

Saint John's University
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete Expired Jacob Saffert
Sustainability Fellow
Office of Sustainability
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Total building energy consumption, all sources (transportation fuels excluded):
Performance Year Baseline Year
Total building energy consumption 35926 MMBtu 56257 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 27358 MMBtu 44651 MMBtu
District steam/hot water 0 MMBtu 0 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 1346820 Gross Square Feet 1873268 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 154858 Square Feet
Healthcare space 0 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 8293
Cooling degree days 529

Source-site ratios::
Source-Site Ratio (see help icon above)
Grid-purchased electricity 3.14
District steam/hot water 1.20

Start and end dates of the performance year and baseline year (or 3-year periods)::
Start Date End Date
Performance Year July 1, 2013 June 30, 2014
Baseline Year July 1, 2007 June 30, 2008

A brief description of when and why the building energy consumption baseline was adopted:

The baseline chosen is fiscal year 2008. This is the first full fiscal year after SJU signed the ACUPCC agreement in 2007.

A brief description of any building temperature standards employed by the institution:

Academic and staff buildings have thermostats which are controlled by the KMC building management system software. During non-work hours (i.e. overnight and over weekends) the set points for those thermostats is lowered during the heating season and raised during the cooling season.

A brief description of any light emitting diode (LED) lighting employed by the institution:

LED lighting has been installed in the SBH Auditorium, the Quad/Refectory, and the Hill Museum and Manuscript Library. LED installation is being considered for other locations on campus. Additionally, fluorescent lighting on campus has been upgraded from T-8 to T-12. New induction lighting is used in the swimming pool. The three sophomore dormitories (Patrick, Boniface, and Bernard) have all received upgraded, energy efficient lighting in the lounges and corridors.

A brief description of any occupancy and/or vacancy sensors employed by the institution:

Motion sensors are used in several areas on campus. They are used to control the lights between the stacks in the library. They are also used in some stairwells, offices, and classrooms.

A brief description of any passive solar heating employed by the institution:

The SJU solar winter greenhouse employs passive solar heating as its primary heat source.

A brief description of any ground-source heat pumps employed by the institution:

A brief description of any cogeneration technologies employed by the institution:

As the on-campus Power Plant heats and cools our buildings, it also creates approximately one-fourth (25%) of the electricity consumed on campus. The primary role of steam production is to heat and cool our buildings; the electricity is a side benefit. Our boilers produce high pressure steam, which spins turbines to generate electricity. The turbines drop the steam from high pressure steam down to the low pressure steam that is used by campus buildings and steam chillers.

A brief description of any building recommissioning or retrofit program employed by the institution:

The Physical Plant and facilities staff are constantly looking into retrofit projects for older buildings. Many of the principles and standards established through the LEED certification program are considered when renovated pre-existing buildings.

A brief description of any energy metering and management systems employed by the institution:

Heating, cooling, ventilation, and lighting (indoor and outdoor) on campus is controlled by a system provided by KMC Controls. The building and facilities manager and maintenance staff have access to this system to diagnose and solve problems with campus mechanical and lighting systems and to make their operation as efficient as possible. On-campus electrical use and generation, steam and chilled water production, and domestic water use is metered with the ION+ metering system from Schneider Electric. Electricity use is metered for each building, and steam and chilled water production is metered for each boiler and chiller. Additionally, the natural gas consumption of the boilers is metered through the same system. The real-time and historical ION+ metering data is available through a web browser to anyone on campus.

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

All appliances purchased through SJU Custodial Services are ENERGY STAR certified. This includes washers and driers in residence halls along with many other appliances.

A brief description of any energy-efficient landscape design initiatives employed by the institution:

There are currently plans for a stormwater treatment project. This would involve controlling runoff, rain gardens, etc. Construction on this project is explected to begin in 2015.

A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:

Saint John's has looked into and is considering installing Vending Miser systems around campus in order to reduce electrity usage by vending machines.

A brief description of other energy conservation and efficiency initiatives employed by the institution:

Many other energy efficiency projects have take place throughout the recent years. Some of them include:
- An evaluation of all steam traps in mechanical rooms and tunnels began in 2012. All traps have been inventoried, and any leaking or defective valves have been repaired or replaced. This has been a major undertaking, and while the savings cannot easily be quantified, the resulting steam savings are expected to be significant. The inventory will continue over the next year to include traps within buildings.
- In 2011, fluorescent lighting fixtures across the entire campus were upgraded from T-8 to new, more efficient T-12 models.
- In 2009, electric meters were installed on all campus buildings to aid in tracking our energy consumption and conservation efforts. In subsequent years, steam and condensate meters have also been installed. Learn more about this project and see real time and historic data on energy usage for campus buildings.
- The lights in the Warner Palaestra pool were replaced in 2010 with highly efficient induction lights. This upgrade was funded through the Sustainable Revolving Loan Fund and will result in signficant energy and maintenance savings.
- In spring of 2010, Physical Plant crews installed steam by-pass valves for buildings with older pneumatic controls for heating and cooling systems. These valves will result in energy savings by allowing for modulation and control of the heat supply during the transitional spring and fall months.
- As part of the 2009 Refectory Renovations, a new make-up air unit and new hoods were installed. Electrical savings as compared to code minimum are estimated to be be over 270,000 KWH annually and over eight million lbs of steam will be saved annually.

The website URL where information about the institution’s energy conservation and efficiency initiatives is available:

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.