| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 75.65 |
| Liaison | Maddie LoDico |
| Submission Date | Dec. 12, 2014 |
| Executive Letter | Download |
Colby College
OP-8: Building Energy Consumption
| Status | Score | Responsible Party |
|---|---|---|
|
1.81 / 6.00 |
Kevin
Bright Sustainability Coordinator Office of Sustainability |
"---"
indicates that no data was submitted for this field
None
Total building energy consumption, all sources (transportation fuels excluded):
| Performance Year | Baseline Year | |
| Total building energy consumption | 223,281.04 MMBtu | 218,929 MMBtu |
None
Purchased electricity and steam:
| Performance Year | Baseline Year | |
| Grid-purchased electricity | 48,054 MMBtu | 39,979 MMBtu |
| District steam/hot water | 175,227 MMBtu | 178,951 MMBtu |
None
Gross floor area of building space::
| Performance Year | Baseline Year | |
| Gross floor area | 1,550,212 Gross square feet | 1,328,879 Gross square feet |
None
Floor area of energy intensive space, performance year::
| Floor Area | |
| Laboratory space | 35,151 Square feet |
| Healthcare space | 0 Square feet |
| Other energy intensive space |
None
Degree days, performance year (base 65 °F)::
| Degree days (see help icon above) | |
| Heating degree days | 7,839 |
| Cooling degree days | 284 |
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Source-site ratios::
| Source-Site Ratio (see help icon above) | |
| Grid-purchased electricity | 3.14 |
| District steam/hot water | 1.01 |
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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, 1999 | June 30, 2000 |
None
A brief description of when and why the building energy consumption baseline was adopted:
We are using the year 2000 as a common baseline throughout this STARS submission as this was the year the College created its Environmental Advisory Group (EAG) which kickstarted many campus-wide sustainability initiatives.
None
A brief description of any building temperature standards employed by the institution:
The College employs a building temperature setback program over winter and January break.
None
A brief description of any light emitting diode (LED) lighting employed by the institution:
The College uses LEDs in a number of interior and exterior spaces.
None
A brief description of any occupancy and/or vacancy sensors employed by the institution:
In renovated classrooms, corridors, and storage spaces, the College uses vacancy and occupancy sensors. The College is making plans to evaluate more opportunities to integrate occupancy and vacancy sensors on campus.
None
A brief description of any passive solar heating employed by the institution:
N/A
None
A brief description of any ground-source heat pumps employed by the institution:
The College uses geothermal heat pumps as the primary heating and cooling sources in the SSW and Davis buildings.
None
A brief description of any cogeneration technologies employed by the institution:
Colby installed a co-generation turbine in 1999, producing about 10 percent of Colby’s electrical demand as a by-product of generating heat and hot water for the campus.
None
A brief description of any building recommissioning or retrofit program employed by the institution:
Over the winter of 2014, the College is piloting its first energy audit to ASHRAE Level II Standards. The intent is to build off the success of this program and expand to other energy-intensive campus facilities.
None
A brief description of any energy metering and management systems employed by the institution:
Most of the campus buildings are tied into the campus-wide building automation system. As part of the BAS, any energy meters are tied in and reported on a real-time basis.
None
A brief description of the institution's program to replace energy-consuming appliances, equipment and systems with high efficiency alternatives:
See above regarding the College's energy auditing plans.
None
A brief description of any energy-efficient landscape design initiatives employed by the institution:
Colby will continue to manage its landscaping and grounds in a manner consistent with best practices to minimize environmental impact. The Integrated Pest Management (IPM) system, in place since 1995 and rewritten in 2009, minimizes the use and toxicity of chemical application. Leaves and grass clippings are centrally collected and composted. Brush and limbs are chipped and reused on campus. Building and landscape design will continue to be done to manage storm water runoff; Colby will strive to use only native or naturalized plants as landscaping is updated or added to campus. View our Integrated Pest Management Plan to learn more.
None
A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:
The Office of Sustainability is working with Administrative Financial Services to remove all lighting from vending machines. Most vending machines on campus are outfitted with vending misers. Roughly half of the vending machines are lit with LEDs.
None
A brief description of other energy conservation and efficiency initiatives employed by the institution:
See above regarding the College's energy auditing plans.
None
The website URL where information about the institution’s energy conservation and efficiency initiatives is available:
Data source(s) and notes about the submission:
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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.