Overall Rating Silver - expired
Overall Score 46.17
Liaison Jamey Pavey
Submission Date Feb. 26, 2019
Executive Letter Download

STARS v2.1

Earlham College
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 1.98 / 6.00 Ian Smith
Director of Facilities
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 42,070 MMBtu 42,085.90 MMBtu
Electricity from on-site renewables 0 MMBtu 0 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) 153,237 MMBtu 79,820 MMBtu
Total 195,307 MMBtu 121,905.90 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year Jan. 1, 2017 Dec. 31, 2017
Baseline Year July 1, 2007 June 30, 2008

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):
2007-8 was first year we have records available for.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 1,114,807 Gross square feet 889,228 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 0.18 MMBtu per square foot 0.14 MMBtu per square foot
Source energy 0.26 MMBtu per square foot 0.24 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 4,893 Degree-Days (°F)
Cooling degree days 883 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 51,380 Square feet
Healthcare space 2,000 Square feet
Other energy intensive space

EUI-adjusted floor area, performance year:
1,279,567 Gross square feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
26.43 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):
In 2018, we added sticker prompts to many light switches around campus. Some of these emphasize the coal-based electricity used by the college while others encourage using natural light when possible.

A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):
The campus heating and cooling set points are controlled by an Energy Management System operating with heating and cooling set points. During hours when the educational and administrative buildings are closed, building temperatures are set back to 65 degrees for the heating months. • During normal operating hours, the buildings is set between 68 and 72 degrees. • Building vestibules and foyers is unheated, unless needed for mechanical piping. • Residence Halls are set at 72 degrees during the day and set back to 68 degrees during early morning hours.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
As part of the recent Energy Performance Upgrade, most lighting on campus is now energy efficient LED lighting.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
The Center for Science and Technology is heated and cooled by a geothermal system, which includes a closed loop system with 45 wells. After three full years of operation, the system is functioning very well.

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

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):
A recent Energy Performance contract included some HVAC recommissioning to increase energy efficiency.

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.