Overall Rating Gold - expired
Overall Score 72.14
Liaison Kelsey Beal
Submission Date March 2, 2018
Executive Letter Download

STARS v2.1

Indiana University Bloomington
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 3.95 / 6.00 Makayla Bonney
Assistant Director
Sustain IU
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 951,002 MMBtu 963,026.76 MMBtu
Electricity from on-site renewables 4,521 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) 0 MMBtu 0 MMBtu
Total 955,523 MMBtu 963,026.76 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year July 1, 2016 June 30, 2017
Baseline Year July 1, 2009 June 30, 2010

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):

The energy consumption baseline was adopted in 2009 because this is the year when IU opened its Office of Sustainability.

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 17,232,144 Gross square feet 14,357,569 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 0.06 MMBtu per square foot 0.07 MMBtu per square foot
Source energy 0.17 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 4,384.60 Degree-Days (°F)
Cooling degree days 1,436.60 Degree-Days (°F)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 543,850 Square feet
Healthcare space 25,069 Square feet
Other energy intensive space

EUI-adjusted floor area, performance year:
19,079,491 Gross square feet

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
8.60 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):

The Office of Sustainability coordinates two energy challenge competitions each academic year, one in the spring and one in the fall. Both last between 3-4 weeks and pit similar buildings versus one another, with winners determined based on savings relative to their own baseline. The fall 2018 challenge included 66 buildings including residence halls, academic buildings, lab/academic buildings, administrative buildings, and athletics.

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

Indiana University Bloomington uses timers through their Energy Management System to reset temperature settings in the majority of buildings on campus during unoccupied hours. This is 68 degrees in the winter and 76 degrees in the summer.

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

LEDs installed total 1,291 fixtures, including:

Student Recreational Sports Center - 110 down lights
IU Alumni Center - 264 down lights
Rose Hall (residential)- 697 down lights
Ballantine Hall (academic) - 100 LED 2x4 fixtures
IU Health Center - 61 2x4 fixtures
Jordan Hall (academic) - 59 2x4 fixtures

Installations continue across campus and this number is continuing its climb.

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):

240 KW microturbine at Central Heating Plant replaced pressure reducing valves.

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):

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.