Overall Rating Silver
Overall Score 53.49
Liaison Julia Angstmann
Submission Date Dec. 20, 2021

STARS v2.2

Butler University
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 4.66 / 6.00 Taylor Korn
Campus Engineer
University Operations
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity Kilowatt-hours 109,003.16 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy MMBtu
Imported steam, hot water, and/or chilled water MMBtu

Total site energy consumption, performance year:
228,365.16 MMBtu

Gross floor area of building space, performance year:
289,996.71 Gross square meters

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 6,541.21 Square meters
Healthcare space Square meters
Other energy intensive space 9,004.81 Square meters

EUI-adjusted floor area, performance year:
312,083.94 Gross square meters

Degree days, performance year:
Degree days
Heating degree days 2,927.22 Degree-Days (°C)
Cooling degree days 723.89 Degree-Days (°C)

Total degree days, performance year:
3,651.11 Degree-Days (°C)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period June 1, 2020 May 31, 2021

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
61.86 Btu / GSM / Degree-Day (°C)

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity Kilowatt-hours 109,428.43 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy MMBtu
Imported steam, hot water, and/or chilled water MMBtu

Total site energy consumption, baseline year:
213,700.43 MMBtu

Gross floor area of building space, baseline year:
194,120.91 Gross square meters

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period June 1, 2015 May 31, 2016

A brief description of when and why the energy consumption baseline was adopted:
This was the most recent data available.

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.79 MMBtu per square meter 1.54 MMBtu per square meter
Baseline year 1.10 MMBtu per square meter 2.23 MMBtu per square meter

Percentage reduction in total source energy consumption per unit of floor area from baseline:
30.92

Documentation to support the performance year energy consumption figures reported above:
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A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
Butler has a Green Office program where individuals can learn how to reduce energy consumption.

A brief description of energy use standards and controls employed by the institution:
The University has implemented energy efficiency and conservation standards for new construction and major renovation on campus. Campus setpoints are to maintain 70 +/- 2 degrees with occupant control allowed for an additional +/- 2 degrees range. The University has began to classify facilities as non-essential and essential buildings, and setback HVAC systems at non-essential facilities at pre-determined appropriate times of day/year. All new construction and major renovations shall be LEED Silver certified.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
All new light fixtures on campus must be LED, unless specified exception has been granted approval. Vacancy sensors are a campus standard for all classrooms and offices (new construction or renovation or lighting retrofit project). Common areas such as bathrooms, hallways are to use occupancy sensors.

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

A brief description of co-generation employed by the institution:
N/A

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
Campus standard for kitchen appliances to be rated Energy Star or equivalent in operation. Existing HVAC systems, when due for replacement, are considered as wholistic system and shall be upgraded to most energy efficient operation and control strategies. New HVAC systems for new construction must meet or exceed ASHRAE 90.1 design standards which includes optimal control strategies and efficiency ratings.

Website URL where information about the institution’s energy conservation and efficiency program is available:
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Additional documentation to support the submission:
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Data source(s) and notes about the submission:
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