Overall Rating Bronze - expired
Overall Score 38.99
Liaison Hayley Berliner
Submission Date Oct. 28, 2019
Executive Letter Download

STARS v2.1

Trinity College (CT)
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 2.96 / 6.00 Hayley Berliner
Sustainability Coordinator
Finance & Operations
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 27,816 MMBtu 68,005 MMBtu
Electricity from on-site renewables 1,206 MMBtu 1,304 MMBtu
District steam/hot water (sourced from offsite) 0 MMBtu 0 MMBtu
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass) 239,620 MMBtu 148,049 MMBtu
Total 268,642 MMBtu 217,358 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year July 1, 2018 June 30, 2019
Baseline Year July 1, 2017 June 30, 2018

A brief description of when and why the building energy consumption baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):

FY 18 was the most recent year without a Sustainability Coordinator. Sustainability Coordinator was a new position hired on at the start of FY 19 so base year of 18 will allow us to track progress of programs and initiatives overall.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 1,745,165 Gross square feet 1,745,159 Gross square feet

Source-site ratio for grid-purchased electricity:

Total building energy consumption per unit of floor area:
Performance Year Baseline Year
Site energy 0.15 MMBtu per square foot 0.12 MMBtu per square foot
Source energy 0.19 MMBtu per square foot 0.21 MMBtu per square foot

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:

Degree days, performance year (base 65 °F / 18 °C):
Degree days (see help icon above)
Heating degree days 5,933 Degree-Days (°F)
Cooling degree days 1,052 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 143,057 Square feet
Healthcare space 2,500 Square feet
Other energy intensive space

EUI-adjusted floor area, performance year:
2,084,338 Gross square feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
18.45 Btu / GSF / Degree-Day (°F)

Documentation (e.g. spreadsheet or utility records) to support the performance year energy consumption figures reported above:

A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency (e.g. outreach and education efforts):

Trinity’s full time energy manager, contracted in 2016, works along side the sustainability coordinator, the sustainability committee, and the facilities operations team to incorporate energy efficiency into all projects and daily operations. Energy Manager presents to student groups, classes, and visitors to educate community on energy initiatives.

A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):

In 2018 Trinity began developing a campus wide “Energy Policy” to establish heating and cooling temperature set-point standards, occupancy schedules, and set back temperatures. Energy efficiency sequences of operation are incorporated into all HVAC upgrades and new construction.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

All new buildings or renovations will be all LED. LED conversions will be looked at on a building by building basis for other spaces based on savings/payback.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:

A brief description of co-generation employed by the institution, e.g. combined heat and power (CHP):

1.4 MW Fuel Cell with Steam waste heat recovery tied into south campus main substation and central energy plant.

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment and systems with high efficiency alternatives (e.g. building re-commissioning or retrofit programs):

Trinity completed a Building Automation System supervisory controller upgrade in 2017 to upgrade the existing BAS to Niagara and is currently in the process of developing a strategy to replace the existing field controllers with new BACnet MSTP controllers to support future expansion and incorporate new energy efficient sequences into the replacements. A campus wide energy audit will be completed in the next 18 months to further direct energy efficiency initiatives on campus.

The website URL where information about the programs or initiatives is available:

Additional documentation to support the submission:

Data source(s) and notes about the submission:

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.