Overall Rating Silver - expired
Overall Score 58.15
Liaison Victor Udo
Submission Date Sept. 16, 2014
Executive Letter Download

STARS v2.0

Bucknell University
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 0.66 / 6.00 Stephen Durfee
Energy Manager
"---" 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 607,663 MMBtu 599,136 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 7,867 MMBtu 18,977 MMBtu
District steam/hot water 0 MMBtu 0 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 2,684,135 Gross Square Feet 2,599,344 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 390,408 Square Feet
Healthcare space 8,931 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 5,831
Cooling degree days 1,016

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 July 1, 2007 June 30, 2008

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

The baseline year corresponds to the baseline year of the University's climate action plan.

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

The standard discharge air temperature is 55 degrees Fahrenheit. The occupied cooling set-point is 74 degrees Fahrenheit and the occupied heating set-point is 68 degrees Fahrenheit.

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

Noribachi LED lights in fieldhouse, LED lights in performing arts building

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

Occupancy sensors are
used to control lighting in meeting rooms, offices, and restrooms in all new and renovated buildings.

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

passive solar heating that provides hot water needs for small residential unit

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


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

Bucknell operates a highly efficient natural gas co-gen plant that was installed in 1998. The plant reduced greenhouse gas emissions by 40%.

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

The lights in the fieldhouse were retrofitted with LED lights as well as the lights in the performing arts building. The kitchen hoods in the dining areas were retrofitted with a system that allows the fan speed to adjust accordingly to usage. Additionally, the HVAC system in a science building was replaced and heating pumps in the gymnasium were converted to VFDs instead of constant speed drives. Another building was added to the buildings on campus that are automatically controlled so that it can be scheduled when occupied.

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

WebCTRL, a program distributed by Automated Logic Corporation, shows the electric, chilled water and steam meters for buildings around campus. These are monitored monthly. Additionally, the buildings are scheduled to unoccupied mode when there are no events so that the room temperature is allowed to setback. This allows the equipment to slow down or stop running for a period of time.

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


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

The engineering building as well as the new LEED certified building have green roofs.

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

VendingMizer occupancy sensors

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

Analytika is a program that evaluates the data from the automated controls system and lists the problems each building is experiencing. This helps formulate work orders so that machinery does not continue to operate inefficiently.

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.