Overall Rating Gold - expired
Overall Score 68.35
Liaison Alexis Reyes
Submission Date Oct. 29, 2015
Executive Letter Download

STARS v2.0

Pomona College
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 1.13 / 6.00 Robin Xu
SIO Staff
Sustainability Integration 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 165,288.26 MMBtu 172,014.10 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 83,914.50 MMBtu 78,801.90 MMBtu
District steam/hot water 0 MMBtu 93,053 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 134,758.22 Gross Square Metres 123,284.05 Gross Square Metres

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 14,009.31 Square Metres
Healthcare space Square Metres
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 1,476
Cooling degree days 2,227

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:

We use 05-06 as the baseline year because it is the earliest year for which we have accurate and extensive data. STARS used to automatically require 2005, which is another reason we selected this baseline.

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

Campus buildings are on a Building Management System (BMS), which establishes schedules for HVAC use in those facilities. The campus Heating and Cooling Guidelines target a temperature of 68-70° during the heating season and 74-76° during the cooling season during occupied hours. Building scheduling typically falls between 6 am and 6 pm. See: http://www.pomona.edu/administration/facilities-campus-services/files/hvac_policy.pdf

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

LED lighting is used in a variety of applications across campus, including spotlights, residential lighting, street lighting, and as part of a public art installation. Pomona also just retrofitted the lighting in Bridges Auditorium and the music theatre to use LEDs. New major construction and renovation projects on campus are incorporating LED lighting wherever feasible.

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

Occupancy sensors and daylighting sensors are used in a variety of facilities across campuses, including office, academic, and residential facilities. They are used in hallways, bathrooms, and kitchens.

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

In 13-14, solar thermal heating was employed at Pendleton Pool and on Sontag and Pomona residence halls.

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

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

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

In 2013-2014, Pomona started a retrocommissioning process in its science laboratories: Seaver North, Seaver South, and Richard C. Seaver Biology. The energy efficiency measures from the first phase of this project is underway and is anticipated to reduce the three buildings' energy use by 10%. The second phase of the project in 2015 will reduce building energy an additional 15%. Another retrocommissioning study is being implemented for the two dining halls that are open most often.

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

Campus buildings are managed by a Building Management System, which includes scheduling for lighting, HVAC, and other building infrastructure; setpoints for HVAC; and monitoring for overall building performance.

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

Pomona's Green Purchasing Standards and Sustainable Operations and Maintenance Standards require all new appliances to be Energy Star rated. Mini fridges students bring to campus also require an Energy Star rating and are not allowed in the new residence halls where ample common refrigerators are provided. The Integrated Facilities Plan includes a goal to switch out inefficient boilers and systems in a timely and regular manner.

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

The College's Grounds Department has been systematically increasing the variety and extent of drought-tolerant landscaping choices on campus, including reduced water-using grass blends for turf. Grounds strategically designs landscaping on campus to place plants that need more water in naturally wetter areas of campus and plants that need less water in drier areas. The College's irrigation system includes a variety of measures to ensure that landscaping is irrigated appropriately, including daily-updated weather data from the campus' weather system that controls irrigation systems based on predictions of humidity and precipitation, efficient Rainbird irrigation equipment, and a rain gauge shut-off that shuts down the system when more than 0.5" of rain is detected. Drip irrigation has been systematically installed where appropriate, reducing the use of spray and other sprinkler types on campus. In Summer 2009, Grounds replaced 5,148 sq-ft of spray irrigation with drip irrigation. Since 2004, the College has significantly reduced the watering schedule for campus landscaping, down to a base for two times per week (aside from athletic turf, which must be watered three to four times a week due to different maintenance requirements). Watering occurs more than twice a week when weather or other conditions require it.

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

We use the VendingMiser VM2iQ unit to control vending machines around campus.

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

Pomona College participates in a continuous energy improvement program, outlined in the campus energy policy. This incorporates continuous cycles of conducting ASHRAE Level II or III audits of buildings, evaluating projects for cost and energy savings, and implementing projects that meet the established criteria.

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.