Overall Rating Gold - expired
Overall Score 66.56
Liaison David Blodgett
Submission Date March 13, 2015
Executive Letter Download

STARS v2.0

Babson College
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 2.95 / 6.00 Steve Tolley
Assistant Director, Ground, Building Services & Sustainability
Facilities Management & Planning
"---" indicates that no data was submitted for this field

Total building energy consumption, all sources (transportation fuels excluded):
Performance Year Baseline Year
Total building energy consumption 156,936.63 MMBtu 191,771.02 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 62,452.71 MMBtu 77,159.94 MMBtu
District steam/hot water 0 MMBtu 0 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 1,709,094 Gross square feet 1,706,294 Gross square feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 0 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 6,642
Cooling degree days 630

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, 2005 June 30, 2006

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

Used in Babson College's Sustainability and Climate Action Plan that was submitted to the ACUPCC


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

LED Lights have been used in 2 classroom applications and an office in our Facilities Building. We have also used LED's in the majority of our outdoor lights and we have five solar powered lights that have LED's in them. LED lights are being experimented with for use in elevators and some elevator lobbies.The college recently installed LED lighting in a major parking lot at the college skating rink and a main Student Lot (Knight Lot). We have utilized high efficiency induction lighting in our parking deck. We have installed LEDs in our Campus Center.


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

70-80% of our non residential buildings have occupancy control. These sensors have been used in several residential buildings. We have offices in our facilities building with motion sensors, classrooms with motion sensors and residence halls where hallways and common spaces have motion sensors. Technologies include passive infrared and acoustic motion sensors. Lights over library stacks are controlled by rows.


A brief description of any passive solar heating employed by the institution:
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A brief description of any ground-source heat pumps employed by the institution:
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A brief description of any cogeneration technologies employed by the institution:
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A brief description of any building recommissioning or retrofit program employed by the institution:

Babson has been systematically working through its buildings to update its HVAC systems, controls, lighting, and to transition from oil to natural gas for heating.

Projects include retro-commissioning of the Executive Conference Center, installation of gas lines to buildings previously using fuel oil, lighting retrofits across campus, implementation of set points and building turn-downs, new boilers and furnaces, etc.


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

Many of the college buildings have EMS tied to the HVAC shop at Facilities. Systems include American Automatrix, Johnson controls, etc.


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

All new appliances are Energy Star when available.


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

We have an annual tree-planting event and have planted trees on the south and west sides of a residence hall with high sun exposure to provide shade and privacy.


A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:
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A brief description of other energy conservation and efficiency initiatives employed by the institution:
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The website URL where information about the institution’s energy conservation and efficiency initiatives is available:
Data source(s) and notes about the submission:

FY14 for performance year


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.