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The Sustainability Tracking, Assessment & Rating System™ (STARS) is a transparent, self-reporting framework for colleges and universities to measure their sustainability performance.

Overall Rating Gold
Overall Score 65.69
Liaison John Pumilio
Submission Date July 23, 2014
Executive Letter Download

STARS v2.0

Colgate University
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 1.53 / 6.00 John Pumilio
Director of Sustainability
Sustainability Office
"---" 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 376,304 MMBtu 411,488 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 103,694 MMBtu 107,720 MMBtu
District steam/hot water 272,610 MMBtu 303,768 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 2,340,773 Gross Square Feet 2,331,239 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 121,012 Square Feet
Healthcare space 2,202 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 6,858
Cooling degree days 656

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, 2012 June 30, 2013
Baseline Year June 1, 2009 May 31, 2010

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

It was the first year we conducted a comprehensive greenhouse gas inventory after signing the American College and Universities Presidents' Climate Commitment. 2009 was also the year Colgate's official sustainability program started.


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

We have an ongoing program utilizing data from the campus energy management and utility data acquisition systems to reduce energy demand through modification and optimization of control schemes, occupancy control schedules, temperature setback, and outdoor air ventilation systems management


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

We recently replaced sixty 250-watt and eighteen 100-watt incandescent bulbs from Olin Hall's Love Auditorium and replaced them with seventy-eight 20-watt energy efficient LED lights. The LED lights cost about $3,500. The project was refunded $2,000 from the Hamilton Coop Electric. So, overall the project cost Colgate about $1,500 plus the cost of labor. This lighting upgrade will reduce energy consumption by about 420,000 kWh a year. At $0.041 per kWh this will save Colgate approximately $17,500 a year in electricity costs and reduce our campus carbon footprint by 25 tons.


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

We use motion detectors in most of our academic buildings, all newer buildings, and all buildings that have been recently renovated.


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

Over the past few years, we have invested in sub-metering for all buildings connected to our main steam line. This project included upgrading our energy management system to allow our college engineer and facilities staff to identify energy waste and better control energy use on campus.


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

We have a campus policy to purchase Energy Star appliances and EPEAT computer systems.


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

Since 2011, we have incorporated about 20 acres into a reduced mow regime.


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

We recently contracted with Coca-Cola to replace all our current vending machines with energy efficient ones that have the vending miser. Overall, we only have a handful of vending machines on campus.


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

Many. See our Sustainability and Climate Action Plan for a list of the projects we have and continue to implement.


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

2009 Baseline:
Wood chips = 22249 tons = 10 MMBtu/ton = 222490 MMBtus
Fuel oil #6 = 371457 gallons = 0.150 MMBtu/gallon = 55719 MMBtus
Fuel oil #2 = 185503 gallons = 0.138 MMBtu/gallon = 25559 MMBtus
Electricity = 31571030 kWh = 0.003412 MMBtu/kWh = 107720 MMBtus
TOTAL = 411488 MMBtus

2012 Performance:
Wood chips = 21718 tons = 10 MMBtu/ton = 217180 MMBtus
Fuel oil #6 = 215397 gallons = 0.150 MMBtu/gallon = 32310 MMBtus
Fuel oil #2 = 167539 gallons = 0.138 MMBtu/gallon = 23120 MMBtus
Electricity = 30390822 kWh = 0.003412 MMBtu/kWh = 103694 MMBtus
TOTAL = 376,304 MMBtus

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.